Added table field to CDM 5.3 CSV, added 5.2 CSV, moved to Documentation folder

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Ajit Londhe 2018-04-14 14:52:05 -07:00
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schema,table,field,required,type,description,table,
cdm,condition_occurrence,condition_occurrence_id,Yes,INTEGER,A unique identifier for each Condition Occurrence event.,condition_occurrence,
cdm,condition_occurrence,person_id,Yes,INTEGER,A foreign key identifier to the Person who is experiencing the condition. The demographic details of that Person are stored in the PERSON table.,condition_occurrence,
cdm,condition_occurrence,condition_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Condition Concept identifier in the Standardized Vocabularies.,condition_occurrence,
cdm,condition_occurrence,condition_start_date,Yes,DATE,The date when the instance of the Condition is recorded.,condition_occurrence,
cdm,condition_occurrence,condition_start_datetime,No,DATETIME,The date and time when the instance of the Condition is recorded.,condition_occurrence,
cdm,condition_occurrence,condition_end_date,No,DATE,The date when the instance of the Condition is considered to have ended.,condition_occurrence,
cdm,condition_occurrence,condition_end_datetime,No,DATE,The date when the instance of the Condition is considered to have ended.,condition_occurrence,
cdm,condition_occurrence,condition_type_concept_id,Yes,INTEGER,"A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the source data from which the condition was recorded, the level of standardization, and the type of occurrence.",condition_occurrence,
cdm,condition_occurrence,stop_reason,No,VARCHAR(20),"The reason that the condition was no longer present, as indicated in the source data.",condition_occurrence,
cdm,condition_occurrence,provider_id,No,INTEGER,A foreign key to the Provider in the PROVIDER table who was responsible for capturing (diagnosing) the Condition.,condition_occurrence,
cdm,condition_occurrence,visit_occurrence_id,No,INTEGER,A foreign key to the visit in the VISIT_OCCURRENCE table during which the Condition was determined (diagnosed).,condition_occurrence,
cdm,condition_occurrence,condition_source_value,No,VARCHAR(50),The source code for the condition as it appears in the source data. This code is mapped to a standard condition concept in the Standardized Vocabularies and the original code is stored here for reference.,condition_occurrence,
cdm,condition_occurrence,condition_source_concept_id,No,INTEGER,A foreign key to a Condition Concept that refers to the code used in the source.,condition_occurrence,
cdm,condition_occurrence,condition_status_source_value,No,VARCHAR(50),The source code for the condition status as it appears in the source data.,condition_occurrence,
cdm,condition_occurrence,condition_status_concept_id,No,INTEGER,A foreign key to the predefined Concept in the Standard Vocabulary reflecting the condition status,condition_occurrence,
cdm,death,person_id,Yes,INTEGER,A foreign key identifier to the deceased person. The demographic details of that person are stored in the person table.,death,
cdm,death,death_date,Yes,DATE,"The date the person was deceased. If the precise date including day or month is not known or not allowed, December is used as the default month, and the last day of the month the default day.",death,
cdm,death,death_datetime,No,DATETIME,"The date and time the person was deceased. If the precise date including day or month is not known or not allowed, December is used as the default month, and the last day of the month the default day.",death,
cdm,death,death_type_concept_id,Yes,INTEGER,A foreign key referring to the predefined concept identifier in the Standardized Vocabularies reflecting how the death was represented in the source data.,death,
cdm,death,cause_concept_id,No,INTEGER,A foreign key referring to a standard concept identifier in the Standardized Vocabularies for conditions.,death,
cdm,death,cause_source_value,No,VARCHAR(50),"The source code for the cause of death as it appears in the source data. This code is mapped to a standard concept in the Standardized Vocabularies and the original code is, stored here for reference.",death,
cdm,death,cause_source_concept_id,No,INTEGER,"A foreign key to the concept that refers to the code used in the source. Note, this variable name is abbreviated to ensure it will be allowable across database platforms.",death,
cdm,device_exposure,device_exposure_id,Yes,INTEGER,A system-generated unique identifier for each Device Exposure.,device_exposure,
cdm,device_exposure,person_id,Yes,INTEGER,A foreign key identifier to the Person who is subjected to the Device. The demographic details of that person are stored in the Person table.,device_exposure,
cdm,device_exposure,device_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Device concept.,device_exposure,
cdm,device_exposure,device_exposure_start_date,Yes,DATE,The date the Device or supply was applied or used.,device_exposure,
cdm,device_exposure,device_exposure_start_datetime,No,DATETIME,The date and time the Device or supply was applied or used.,device_exposure,
cdm,device_exposure,device_exposure_end_date,No,DATE,The date the Device or supply was removed from use.,device_exposure,
cdm,device_exposure,device_exposure_end_datetime,No,DATETIME,The date and time the Device or supply was removed from use.,device_exposure,
cdm,device_exposure,device_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of Device Exposure recorded. It indicates how the Device Exposure was represented in the source data.,device_exposure,
cdm,device_exposure,unique_device_id,No,VARCHAR(50),A UDI or equivalent identifying the instance of the Device used in the Person.,device_exposure,
cdm,device_exposure,quantity,No,INTEGER,The number of individual Devices used for the exposure.,device_exposure,
cdm,device_exposure,provider_id,No,INTEGER,A foreign key to the provider in the PROVIDER table who initiated of administered the Device.,device_exposure,
cdm,device_exposure,visit_occurrence_id,No,INTEGER,A foreign key to the visit in the VISIT_OCCURRENCE table during which the device was used.,device_exposure,
cdm,device_exposure,device_source_value,No,VARCHAR(50),The source code for the Device as it appears in the source data. This code is mapped to a standard Device Concept in the Standardized Vocabularies and the original code is stored here for reference.,device_exposure,
cdm,device_exposure,device_source_concept_id,No,INTEGER,A foreign key to a Device Concept that refers to the code used in the source.,device_exposure,
cdm,drug_exposure,drug_exposure_id,Yes,INTEGER,A system-generated unique identifier for each Drug utilization event.,drug_exposure,
cdm,drug_exposure,person_id,Yes,INTEGER,A foreign key identifier to the person who is subjected to the Drug. The demographic details of that person are stored in the person table.,drug_exposure,
cdm,drug_exposure,drug_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Drug concept.,drug_exposure,
cdm,drug_exposure,drug_exposure_start_date,Yes,DATE,"The start date for the current instance of Drug utilization. Valid entries include a start date of a prescription, the date a prescription was filled, or the date on which a Drug administration procedure was recorded.",drug_exposure,
cdm,drug_exposure,drug_exposure_start_datetime,No,DATETIME,"The start date and time for the current instance of Drug utilization. Valid entries include a start date of a prescription, the date a prescription was filled, or the date on which a Drug administration procedure was recorded.",drug_exposure,
cdm,drug_exposure,drug_exposure_end_date,Yes,DATE,The end date for the current instance of Drug utilization. It is not available from all sources.,drug_exposure,
cdm,drug_exposure,drug_exposure_end_datetime,No,DATETIME,The end date and time for the current instance of Drug utilization. It is not available from all sources.,drug_exposure,
cdm,drug_exposure,verbatim_end_date,No,DATE,The known end date of a drug_exposure as provided by the source,drug_exposure,
cdm,drug_exposure,drug_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of Drug Exposure recorded. It indicates how the Drug Exposure was represented in the source data.,drug_exposure,
cdm,drug_exposure,stop_reason,No,VARCHAR(20),"The reason the Drug was stopped. Reasons include regimen completed, changed, removed, etc.",drug_exposure,
cdm,drug_exposure,refills,No,INTEGER,"The number of refills after the initial prescription. The initial prescription is not counted, values start with 0.",drug_exposure,
cdm,drug_exposure,quantity,No,FLOAT,The quantity of drug as recorded in the original prescription or dispensing record.,drug_exposure,
cdm,drug_exposure,days_supply,No,INTEGER,The number of days of supply of the medication as recorded in the original prescription or dispensing record.,drug_exposure,
cdm,drug_exposure,sig,No,VARCHAR(MAX),"The directions (""signetur"") on the Drug prescription as recorded in the original prescription (and printed on the container) or dispensing record.",drug_exposure,
cdm,drug_exposure,route_concept_id,No,INTEGER,A foreign key to a predefined concept in the Standardized Vocabularies reflecting the route of administration.,drug_exposure,
cdm,drug_exposure,lot_number,No,VARCHAR(50),An identifier assigned to a particular quantity or lot of Drug product from the manufacturer.,drug_exposure,
cdm,drug_exposure,provider_id,No,INTEGER,A foreign key to the provider in the PROVIDER table who initiated (prescribed or administered) the Drug Exposure.,drug_exposure,
cdm,drug_exposure,visit_occurrence_id,No,INTEGER,A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Drug Exposure was initiated.,drug_exposure,
cdm,drug_exposure,drug_source_value,No,VARCHAR(50),"The source code for the Drug as it appears in the source data. This code is mapped to a Standard Drug concept in the Standardized Vocabularies and the original code is, stored here for reference.",drug_exposure,
cdm,drug_exposure,drug_source_concept_id,No,INTEGER,A foreign key to a Drug Concept that refers to the code used in the source.,drug_exposure,
cdm,drug_exposure,route_source_value,No,VARCHAR(50),The information about the route of administration as detailed in the source.,drug_exposure,
cdm,drug_exposure,dose_unit_source_value,No,VARCHAR(50),The information about the dose unit as detailed in the source.,drug_exposure,
cdm,fact_relationship,domain_concept_id_1,Yes,INTEGER,"The concept representing the domain of fact one, from which the corresponding table can be inferred.",fact_relationship,
cdm,fact_relationship,fact_id_1,Yes,INTEGER,The unique identifier in the table corresponding to the domain of fact one.,fact_relationship,
cdm,fact_relationship,domain_concept_id_2,Yes,INTEGER,"The concept representing the domain of fact two, from which the corresponding table can be inferred.",fact_relationship,
cdm,fact_relationship,fact_id_2,Yes,INTEGER,The unique identifier in the table corresponding to the domain of fact two.,fact_relationship,
cdm,fact_relationship,relationship_concept_id,Yes,INTEGER,A foreign key to a Standard Concept ID of relationship in the Standardized Vocabularies.,fact_relationship,
cdm,measurement,measurement_id,Yes,INTEGER,A unique identifier for each Measurement.,measurement,
cdm,measurement,person_id,Yes,INTEGER,A foreign key identifier to the Person about whom the measurement was recorded. The demographic details of that Person are stored in the PERSON table.,measurement,
cdm,measurement,measurement_concept_id,Yes,INTEGER,A foreign key to the standard measurement concept identifier in the Standardized Vocabularies.,measurement,
cdm,measurement,measurement_date,Yes,DATE,The date of the Measurement.,measurement,
cdm,measurement,measurement_datetime,No,DATETIME,"The date and time of the Measurement. Some database systems don't have a datatype of time. To accomodate all temporal analyses, datatype datetime can be used (combining measurement_date and measurement_time [forum discussion](http://forums.ohdsi.org/t/date-time-and-datetime-problem-and-the-world-of-hours-and-1day/314))",measurement,
cdm,measurement,measurement_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the provenance from where the Measurement record was recorded.,measurement,
cdm,measurement,operator_concept_id,No,INTEGER,"A foreign key identifier to the predefined Concept in the Standardized Vocabularies reflecting the mathematical operator that is applied to the value_as_number. Operators are <, <=, =, >=, >.",measurement,
cdm,measurement,value_as_number,No,FLOAT,A Measurement result where the result is expressed as a numeric value.,measurement,
cdm,measurement,value_as_concept_id,No,INTEGER,"A foreign key to a Measurement result represented as a Concept from the Standardized Vocabularies (e.g., positive/negative, present/absent, low/high, etc.).",measurement,
cdm,measurement,unit_concept_id,No,INTEGER,A foreign key to a Standard Concept ID of Measurement Units in the Standardized Vocabularies.,measurement,
cdm,measurement,range_low,No,FLOAT,The lower limit of the normal range of the Measurement result. The lower range is assumed to be of the same unit of measure as the Measurement value.,measurement,
cdm,measurement,range_high,No,FLOAT,The upper limit of the normal range of the Measurement. The upper range is assumed to be of the same unit of measure as the Measurement value.,measurement,
cdm,measurement,provider_id,No,INTEGER,A foreign key to the provider in the PROVIDER table who was responsible for initiating or obtaining the measurement.,measurement,
cdm,measurement,visit_occurrence_id,No,INTEGER,A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Measurement was recorded.,measurement,
cdm,measurement,measurement_source_value,No,VARCHAR(50),The Measurement name as it appears in the source data. This code is mapped to a Standard Concept in the Standardized Vocabularies and the original code is stored here for reference.,measurement,
cdm,measurement,measurement_source_concept_id,No,INTEGER,A foreign key to a Concept in the Standard Vocabularies that refers to the code used in the source.,measurement,
cdm,measurement,unit_source_value,No,VARCHAR(50),The source code for the unit as it appears in the source data. This code is mapped to a standard unit concept in the Standardized Vocabularies and the original code is stored here for reference.,measurement,
cdm,measurement,value_source_value,No,VARCHAR(50),The source value associated with the content of the value_as_number or value_as_concept_id as stored in the source data.,measurement,
cdm,note,note_id,Yes,INTEGER,A unique identifier for each note.,note,
cdm,note,person_id,Yes,INTEGER,A foreign key identifier to the Person about whom the Note was recorded. The demographic details of that Person are stored in the PERSON table.,note,
cdm,note,note_date,Yes,DATE,The date the note was recorded.,note,
cdm,note,note_datetime,No,DATETIME,The date and time the note was recorded.,note,
cdm,note,note_type_concept_id,Yes,INTEGER,"A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the type, origin or provenance of the Note.",note,
cdm,note,note_class_concept_id,Yes,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the HL7 LOINC Document Type Vocabulary classification of the note.,note,
cdm,note,note_title,No,VARCHAR(250),The title of the Note as it appears in the source.,note,
cdm,note,note_text,Yes,VARCHAR(MAX),The content of the Note.,note,
cdm,note,encoding_concept_id,Yes,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the note character encoding type,note,
cdm,note,language_concept_id,Yes,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the language of the note,note,
cdm,note,provider_id,No,INTEGER,A foreign key to the Provider in the PROVIDER table who took the Note.,note,
cdm,note,note_source_value,No,VARCHAR(50),The source value associated with the origin of the Note,note,
cdm,note,visit_occurrence_id,No,INTEGER,A foreign key to the Visit in the VISIT_OCCURRENCE table when the Note was taken.,note,
cdm,note_nlp,note_nlp_id,Yes,INTEGER,A unique identifier for each term extracted from a note.,note_nlp,
cdm,note_nlp,note_id,Yes,INTEGER,A foreign key to the Note table note the term was extracted from.,note_nlp,
cdm,note_nlp,section_concept_id,No,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies representing the section of the extracted term.,note_nlp,
cdm,note_nlp,snippet,No,VARCHAR(250),A small window of text surrounding the term.,note_nlp,
cdm,note_nlp,offset,No,VARCHAR(50),Character offset of the extracted term in the input note.,note_nlp,
cdm,note_nlp,lexical_variant,Yes,VARCHAR(250),Raw text extracted from the NLP tool.,note_nlp,
cdm,note_nlp,note_nlp_concept_id,No,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the normalized concept for the extracted term. Domain of the term is represented as part of the Concept table.,note_nlp,
cdm,note_nlp,note_nlp_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code in the source vocabulary used by the NLP system,note_nlp,
cdm,note_nlp,nlp_system,No,VARCHAR(250),Name and version of the NLP system that extracted the term.Useful for data provenance.,note_nlp,
cdm,note_nlp,nlp_date,Yes,DATE,The date of the note processing.Useful for data provenance.,note_nlp,
cdm,note_nlp,nlp_date_time,No,DATETIME,The date and time of the note processing. Useful for data provenance.,note_nlp,
cdm,note_nlp,term_exists,No,VARCHAR(1),A summary modifier that signifies presence or absence of the term for a given patient. Useful for quick querying. *,note_nlp,
cdm,note_nlp,term_temporal,No,VARCHAR(50),An optional time modifier associated with the extracted term. (for now <20>past<73> or <20>present<6E> only). Standardize it later.,note_nlp,
cdm,note_nlp,term_modifiers,No,VARCHAR(2000),"A compact description of all the modifiers of the specific term extracted by the NLP system. (e.g. <20>son has rash<73> ? <20>negated=no,subject=family, certainty=undef,conditional=false,general=false<73>).",note_nlp,
cdm,observation,observation_id,Yes,INTEGER,A unique identifier for each observation.,observation,
cdm,observation,person_id,Yes,INTEGER,A foreign key identifier to the Person about whom the observation was recorded. The demographic details of that Person are stored in the PERSON table.,observation,
cdm,observation,observation_concept_id,Yes,INTEGER,A foreign key to the standard observation concept identifier in the Standardized Vocabularies.,observation,
cdm,observation,observation_date,Yes,DATE,The date of the observation.,observation,
cdm,observation,observation_datetime,No,DATETIME,The date and time of the observation.,observation,
cdm,observation,observation_type_concept_id,Yes,INTEGER,A foreign key to the predefined concept identifier in the Standardized Vocabularies reflecting the type of the observation.,observation,
cdm,observation,value_as_number,No,FLOAT,The observation result stored as a number. This is applicable to observations where the result is expressed as a numeric value.,observation,
cdm,observation,value_as_string,No,VARCHAR(60),The observation result stored as a string. This is applicable to observations where the result is expressed as verbatim text.,observation,
cdm,observation,value_as_concept_id,No,INTEGER,"A foreign key to an observation result stored as a Concept ID. This is applicable to observations where the result can be expressed as a Standard Concept from the Standardized Vocabularies (e.g., positive/negative, present/absent, low/high, etc.).",observation,
cdm,observation,qualifier_concept_id,No,INTEGER,"A foreign key to a Standard Concept ID for a qualifier (e.g., severity of drug-drug interaction alert)",observation,
cdm,observation,unit_concept_id,No,INTEGER,A foreign key to a Standard Concept ID of measurement units in the Standardized Vocabularies.,observation,
cdm,observation,provider_id,No,INTEGER,A foreign key to the provider in the PROVIDER table who was responsible for making the observation.,observation,
cdm,observation,visit_occurrence_id,No,INTEGER,A foreign key to the visit in the VISIT_OCCURRENCE table during which the observation was recorded.,observation,
cdm,observation,observation_source_value,No,VARCHAR(50),"The observation code as it appears in the source data. This code is mapped to a Standard Concept in the Standardized Vocabularies and the original code is, stored here for reference.",observation,
cdm,observation,observation_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code used in the source.,observation,
cdm,observation,unit_source_value,No,VARCHAR(50),"The source code for the unit as it appears in the source data. This code is mapped to a standard unit concept in the Standardized Vocabularies and the original code is, stored here for reference.",observation,
cdm,observation,qualifier_source_value,No,VARCHAR(50),The source value associated with a qualifier to characterize the observation,observation,
cdm,observation_period,observation_period_id,Yes,INTEGER,A unique identifier for each observation period.,observation_period,
cdm,observation_period,person_id,Yes,INTEGER,A foreign key identifier to the person for whom the observation period is defined. The demographic details of that person are stored in the person table.,observation_period,
cdm,observation_period,observation_period_start_date,Yes,DATE,The start date of the observation period for which data are available from the data source.,observation_period,
cdm,observation_period,observation_period_end_date,Yes,DATE,The end date of the observation period for which data are available from the data source.,observation_period,
cdm,observation_period,period_type_concept_id,Yes,INTEGER,A foreign key identifier to the predefined concept in the Standardized Vocabularies reflecting the source of the observation period information,observation_period,
cdm,person,person_id,Yes,INTEGER,A unique identifier for each person.,person,
cdm,person,gender_concept_id,Yes,INTEGER,A foreign key that refers to an identifier in the CONCEPT table for the unique gender of the person.,person,
cdm,person,year_of_birth,Yes,INTEGER,"The year of birth of the person. For data sources with date of birth, the year is extracted. For data sources where the year of birth is not available, the approximate year of birth is derived based on any age group categorization available.",person,
cdm,person,month_of_birth,No,INTEGER,"The month of birth of the person. For data sources that provide the precise date of birth, the month is extracted and stored in this field.",person,
cdm,person,day_of_birth,No,INTEGER,"The day of the month of birth of the person. For data sources that provide the precise date of birth, the day is extracted and stored in this field.",person,
cdm,person,birth_datetime,No,DATETIME,The date and time of birth of the person.,person,
cdm,person,race_concept_id,Yes,INTEGER,A foreign key that refers to an identifier in the CONCEPT table for the unique race of the person.,person,
cdm,person,ethnicity_concept_id,Yes,INTEGER,A foreign key that refers to the standard concept identifier in the Standardized Vocabularies for the ethnicity of the person.,person,
cdm,person,location_id,No,INTEGER,"A foreign key to the place of residency for the person in the location table, where the detailed address information is stored.",person,
cdm,person,provider_id,No,INTEGER,A foreign key to the primary care provider the person is seeing in the provider table.,person,
cdm,person,care_site_id,No,INTEGER,"A foreign key to the site of primary care in the care_site table, where the details of the care site are stored.",person,
cdm,person,person_source_value,No,VARCHAR(50),An (encrypted) key derived from the person identifier in the source data. This is necessary when a use case requires a link back to the person data at the source dataset.,person,
cdm,person,gender_source_value,No,VARCHAR(50),The source code for the gender of the person as it appears in the source data. The persons gender is mapped to a standard gender concept in the Standardized Vocabularies, the original value is stored here for reference.,person
cdm,person,gender_source_concept_id,No,INTEGER,A foreign key to the gender concept that refers to the code used in the source.,person,
cdm,person,race_source_value,No,VARCHAR(50),The source code for the race of the person as it appears in the source data. The person race is mapped to a standard race concept in the Standardized Vocabularies and the original value is stored here for reference.,person,
cdm,person,race_source_concept_id,No,INTEGER,A foreign key to the race concept that refers to the code used in the source.,person,
cdm,person,ethnicity_source_value,No,VARCHAR(50),"The source code for the ethnicity of the person as it appears in the source data. The person ethnicity is mapped to a standard ethnicity concept in the Standardized Vocabularies and the original code is, stored here for reference.",person,
cdm,person,ethnicity_source_concept_id,No,INTEGER,A foreign key to the ethnicity concept that refers to the code used in the source.,person,
cdm,procedure_occurrence,procedure_occurrence_id,Yes,INTEGER,A system-generated unique identifier for each Procedure Occurrence.,procedure_occurrence,
cdm,procedure_occurrence,person_id,Yes,INTEGER,A foreign key identifier to the Person who is subjected to the Procedure. The demographic details of that Person are stored in the PERSON table.,procedure_occurrence,
cdm,procedure_occurrence,procedure_concept_id,Yes,INTEGER,A foreign key that refers to a standard procedure Concept identifier in the Standardized Vocabularies.,procedure_occurrence,
cdm,procedure_occurrence,procedure_date,Yes,DATE,The date on which the Procedure was performed.,procedure_occurrence,
cdm,procedure_occurrence,procedure_datetime,No,DATETIME,The date and time on which the Procedure was performed.,procedure_occurrence,
cdm,procedure_occurrence,procedure_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of source data from which the procedure record is derived.,procedure_occurrence,
cdm,procedure_occurrence,modifier_concept_id,No,INTEGER,A foreign key to a Standard Concept identifier for a modifier to the Procedure (e.g. bilateral),procedure_occurrence,
cdm,procedure_occurrence,quantity,No,INTEGER,The quantity of procedures ordered or administered.,procedure_occurrence,
cdm,procedure_occurrence,provider_id,No,INTEGER,A foreign key to the provider in the PROVIDER table who was responsible for carrying out the procedure.,procedure_occurrence,
cdm,procedure_occurrence,visit_occurrence_id,No,INTEGER,A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Procedure was carried out.,procedure_occurrence,
cdm,procedure_occurrence,procedure_source_value,No,VARCHAR(50),"The source code for the Procedure as it appears in the source data. This code is mapped to a standard procedure Concept in the Standardized Vocabularies and the original code is, stored here for reference. Procedure source codes are typically ICD-9-Proc, CPT-4, HCPCS or OPCS-4 codes.",procedure_occurrence,
cdm,procedure_occurrence,procedure_source_concept_id,No,INTEGER,A foreign key to a Procedure Concept that refers to the code used in the source.,procedure_occurrence,
cdm,procedure_occurrence,qualifier_source_value,No,VARCHAR(50),The source code for the qualifier as it appears in the source data.,,
cdm,specimen,specimen_id,Yes,INTEGER,A unique identifier for each specimen.,specimen,
cdm,specimen,person_id,Yes,INTEGER,A foreign key identifier to the Person for whom the Specimen is recorded.,specimen,
cdm,specimen,specimen_concept_id,Yes,INTEGER,A foreign key referring to a Standard Concept identifier in the Standardized Vocabularies for the Specimen.,specimen,
cdm,specimen,specimen_type_concept_id,Yes,INTEGER,A foreign key referring to the Concept identifier in the Standardized Vocabularies reflecting the system of record from which the Specimen was represented in the source data.,specimen,
cdm,specimen,specimen_date,Yes,DATE,The date the specimen was obtained from the Person.,specimen,
cdm,specimen,specimen_datetime,No,DATETIME,The date and time on the date when the Specimen was obtained from the person.,specimen,
cdm,specimen,quantity,No,FLOAT,The amount of specimen collection from the person during the sampling procedure.,specimen,
cdm,specimen,unit_concept_id,No,INTEGER,A foreign key to a Standard Concept identifier for the Unit associated with the numeric quantity of the Specimen collection.,specimen,
cdm,specimen,anatomic_site_concept_id,No,INTEGER,A foreign key to a Standard Concept identifier for the anatomic location of specimen collection.,specimen,
cdm,specimen,disease_status_concept_id,No,INTEGER,A foreign key to a Standard Concept identifier for the Disease Status of specimen collection.,specimen,
cdm,specimen,specimen_source_id,No,VARCHAR(50),The Specimen identifier as it appears in the source data.,specimen,
cdm,specimen,specimen_source_value,No,VARCHAR(50),"The Specimen value as it appears in the source data. This value is mapped to a Standard Concept in the Standardized Vocabularies and the original code is, stored here for reference.",specimen,
cdm,specimen,unit_source_value,No,VARCHAR(50),The information about the Unit as detailed in the source.,specimen,
cdm,specimen,anatomic_site_source_value,No,VARCHAR(50),The information about the anatomic site as detailed in the source.,specimen,
cdm,specimen,disease_status_source_value,No,VARCHAR(50),The information about the disease status as detailed in the source.,specimen,
cdm,visit_occurrence,visit_occurrence_id,Yes,INTEGER,A unique identifier for each Person's visit or encounter at a healthcare provider.,visit_occurrence,
cdm,visit_occurrence,person_id,Yes,INTEGER,A foreign key identifier to the Person for whom the visit is recorded. The demographic details of that Person are stored in the PERSON table.,visit_occurrence,
cdm,visit_occurrence,visit_concept_id,Yes,INTEGER,A foreign key that refers to a visit Concept identifier in the Standardized Vocabularies.,visit_occurrence,
cdm,visit_occurrence,visit_start_date,Yes,DATE,The start date of the visit.,visit_occurrence,
cdm,visit_occurrence,visit_start_datetime,No,DATETIME,The date and time of the visit started.,visit_occurrence,
cdm,visit_occurrence,visit_end_date,Yes,DATE,The end date of the visit. If this is a one-day visit the end date should match the start date.,visit_occurrence,
cdm,visit_occurrence,visit_end_datetime,No,DATETIME,The date and time of the visit end.,visit_occurrence,
cdm,visit_occurrence,visit_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of source data from which the visit record is derived.,visit_occurrence,
cdm,visit_occurrence,provider_id,No,INTEGER,A foreign key to the provider in the provider table who was associated with the visit.,visit_occurrence,
cdm,visit_occurrence,care_site_id,No,INTEGER,A foreign key to the care site in the care site table that was visited.,visit_occurrence,
cdm,visit_occurrence,visit_source_value,No,VARCHAR(50),The source code for the visit as it appears in the source data.,visit_occurrence,
cdm,visit_occurrence,visit_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code used in the source.,visit_occurrence,
cdm,visit_occurrence,admitting_source_concept_id,integer,NO,A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the admitting source for a visit.,visit_occurrence,
cdm,visit_occurrence,admitting_source_value,varchar(50),NO,The source code for the admitting source as it appears in the source data.,visit_occurrence,
cdm,visit_occurrence,discharge_to_concept_id,integer,NO,A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the discharge disposition for a visit.,visit_occurrence,
cdm,visit_occurrence,discharge_to_source_value,varchar(50),NO,The source code for the discharge disposition as it appears in the source data.,visit_occurrence,
cdm,visit_occurrence,preceding_visit_occurrence_id,integer,NO,A foreign key to the VISIT_OCCURRENCE table of the visit immediately preceding this visit,visit_occurrence,
results,cohort,cohort_definition_id,Yes,INTEGER,A foreign key to a record in the COHORT_DEFINITION table containing relevant Cohort Definition information.,cohort,
results,cohort,subject_id,Yes,INTEGER,"A foreign key to the subject in the cohort. These could be referring to records in the PERSON, PROVIDER, VISIT_OCCURRENCE table.",cohort,
results,cohort,cohort_start_date,Yes,DATE,"The date when the Cohort Definition criteria for the Person, Provider or Visit first match.",cohort,
results,cohort,cohort_end_date,Yes,DATE,"The date when the Cohort Definition criteria for the Person, Provider or Visit no longer match or the Cohort membership was terminated.",cohort,
results,cohort_attribute,cohort_definition_id,Yes,INTEGER,A foreign key to a record in the [COHORT_DEFINITION](https://github.com/OHDSI/CommonDataModel/wiki/COHORT_DEFINITION) table containing relevant Cohort Definition information.,cohort_attribute,
results,cohort_attribute,subject_id,Yes,INTEGER,"A foreign key to the subject in the Cohort. These could be referring to records in the PERSON, PROVIDER, VISIT_OCCURRENCE table.",cohort_attribute,
results,cohort_attribute,cohort_start_date,Yes,DATE,"The date when the Cohort Definition criteria for the Person, Provider or Visit first match.",cohort_attribute,
results,cohort_attribute,cohort_end_date,Yes,DATE,"The date when the Cohort Definition criteria for the Person, Provider or Visit no longer match or the Cohort membership was terminated.",cohort_attribute,
results,cohort_attribute,attribute_definition_id,Yes,INTEGER,A foreign key to a record in the [ATTRIBUTE_DEFINITION](https://github.com/OHDSI/CommonDataModel/wiki/ATTRIBUTE_DEFINITION) table containing relevant Attribute Definition information.,cohort_attribute,
results,cohort_attribute,value_as_number,No,FLOAT,The attribute result stored as a number. This is applicable to attributes where the result is expressed as a numeric value.,cohort_attribute,
results,cohort_attribute,value_as_concept_id,No,INTEGER,The attribute result stored as a Concept ID. This is applicable to attributes where the result is expressed as a categorical value.,cohort_attribute,
cdm,condition_era,condition_era_id,Yes,INTEGER,A unique identifier for each Condition Era.,condition_era,
cdm,condition_era,person_id,Yes,INTEGER,A foreign key identifier to the Person who is experiencing the Condition during the Condition Era. The demographic details of that Person are stored in the PERSON table.,condition_era,
cdm,condition_era,condition_concept_id,Yes,INTEGER,A foreign key that refers to a standard Condition Concept identifier in the Standardized Vocabularies.,condition_era,
cdm,condition_era,condition_era_start_date,Yes,DATE,The start date for the Condition Era constructed from the individual instances of Condition Occurrences. It is the start date of the very first chronologically recorded instance of the condition.,condition_era,
cdm,condition_era,condition_era_end_date,Yes,DATE,The end date for the Condition Era constructed from the individual instances of Condition Occurrences. It is the end date of the final continuously recorded instance of the Condition.,condition_era,
cdm,condition_era,condition_occurrence_count,No,INTEGER,The number of individual Condition Occurrences used to construct the condition era.,condition_era,
cdm,dose_era,dose_era_id,Yes,INTEGER,A unique identifier for each Dose Era.,dose_era,
cdm,dose_era,person_id,Yes,INTEGER,A foreign key identifier to the Person who is subjected to the drug during the drug era. The demographic details of that Person are stored in the PERSON table.,dose_era,
cdm,dose_era,drug_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the active Ingredient Concept.,dose_era,
cdm,dose_era,unit_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the unit concept.,dose_era,
cdm,dose_era,dose_value,Yes,FLOAT,The numeric value of the dose.,dose_era,
cdm,dose_era,dose_era_start_date,Yes,DATE,The start date for the drug era constructed from the individual instances of drug exposures. It is the start date of the very first chronologically recorded instance of utilization of a drug.,dose_era,
cdm,dose_era,dose_era_end_date,Yes,DATE,The end date for the drug era constructed from the individual instance of drug exposures. It is the end date of the final continuously recorded instance of utilization of a drug.,dose_era,
cdm,drug_era,drug_era_id,Yes,INTEGER,A unique identifier for each Drug Era.,drug_era,
cdm,drug_era,person_id,Yes,INTEGER,A foreign key identifier to the Person who is subjected to the Drug during the fDrug Era. The demographic details of that Person are stored in the PERSON table.,drug_era,
cdm,drug_era,drug_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Ingredient Concept.,drug_era,
cdm,drug_era,drug_era_start_date,Yes,DATE,The start date for the Drug Era constructed from the individual instances of Drug Exposures. It is the start date of the very first chronologically recorded instance of conutilization of a Drug.,drug_era,
cdm,drug_era,drug_era_end_date,Yes,DATE,The end date for the drug era constructed from the individual instance of drug exposures. It is the end date of the final continuously recorded instance of utilization of a drug.,drug_era,
cdm,drug_era,drug_exposure_count,No,INTEGER,The number of individual Drug Exposure occurrences used to construct the Drug Era.,drug_era,
cdm,drug_era,gap_days,No,INTEGER,The number of days that are not covered by DRUG_EXPOSURE records that were used to make up the era record.,drug_era,
cdm,cost,cost_id,Yes,INTEGER,A unique identifier for each COST record.,cost,
cdm,cost,cost_event_id,Yes,INTEGER,"A foreign key identifier to the event (e.g. Measurement, Procedure, Visit, Drug Exposure, etc) record for which cost data are recorded.",cost,
cdm,cost,cost_domain_id,Yes,VARCHAR(20),"The concept representing the domain of the cost event, from which the corresponding table can be inferred that contains the entity for which cost information is recorded.",cost,
cdm,cost,cost_type_concept_id,Yes,INTEGER,"A foreign key identifier to a concept in the CONCEPT table for the provenance or the source of the COST data: Calculated from insurance claim information, provider revenue, calculated from cost-to-charge ratio, reported from accounting database, etc.",cost,
cdm,cost,currency_concept_id,No,INTEGER,"A foreign key identifier to the concept representing the 3-letter code used to delineate international currencies, such as USD for US Dollar.",cost,
cdm,cost,total_charge,No,FLOAT,"The total amount charged by some provider of goods or services (e.g. hospital, physician pharmacy, dme provider) to payers (insurance companies, the patient).",cost,
cdm,cost,total_cost,No,FLOAT,The cost incurred by the provider of goods or services.,cost,
cdm,cost,total_paid,No,FLOAT,The total amount actually paid from all payers for goods or services of the provider.,cost,
cdm,cost,paid_by_payer,No,FLOAT,The amount paid by the Payer for the goods or services.,cost,
cdm,cost,paid_by_patient,No,FLOAT,The total amount paid by the Person as a share of the expenses.,cost,
cdm,cost,paid_patient_copay,No,FLOAT,The amount paid by the Person as a fixed contribution to the expenses.,cost,
cdm,cost,paid_patient_coinsurance,No,FLOAT,"The amount paid by the Person as a joint assumption of risk. Typically, this is a percentage of the expenses defined by the Payer Plan after the Person's deductible is exceeded.",cost,
cdm,cost,paid_patient_deductible,No,FLOAT,The amount paid by the Person that is counted toward the deductible defined by the Payer Plan. paid_patient_deductible does contribute to the paid_by_patient variable.,cost,
cdm,cost,paid_by_primary,No,FLOAT,The amount paid by a primary Payer through the coordination of benefits.,cost,
cdm,cost,paid_ingredient_cost,No,FLOAT,"The amount paid by the Payer to a pharmacy for the drug, excluding the amount paid for dispensing the drug. paid_ingredient_cost contributes to the paid_by_payer field if this field is populated with a nonzero value.",cost,
cdm,cost,paid_dispensing_fee,No,FLOAT,"The amount paid by the Payer to a pharmacy for dispensing a drug, excluding the amount paid for the drug ingredient. paid_dispensing_fee contributes to the paid_by_payer field if this field is populated with a nonzero value.",cost,
cdm,cost,payer_plan_period_id,No,INTEGER,"A foreign key to the PAYER_PLAN_PERIOD table, where the details of the Payer, Plan and Family are stored. Record the payer_plan_id that relates to the payer who contributed to the paid_by_payer field.",cost,
cdm,cost,amount_allowed,No,FLOAT,The contracted amount agreed between the payer and provider.,cost,
cdm,cost,revenue_code_concept_id,No,INTEGER,A foreign key referring to a Standard Concept ID in the Standardized Vocabularies for Revenue codes.,cost,
cdm,cost,revenue_code_source_value,No,VARCHAR(50),"The source code for the Revenue code as it appears in the source data, stored here for reference.",cost,
cdm,cost,drg_concept_id,No,INTEGER,A foreign key to the predefined concept in the DRG Vocabulary reflecting the DRG for a visit.,cost,
cdm,cost,drg_source_value,No,VARCHAR(3),The 3-digit DRG source code as it appears in the source data.,cost,
cdm,payer_plan_period,payer_plan_period_id,Yes,INTEGER,"A identifier for each unique combination of payer, plan, family code and time span.",payer_plan_period,
cdm,payer_plan_period,person_id,Yes,INTEGER,A foreign key identifier to the Person covered by the payer. The demographic details of that Person are stored in the PERSON table.,payer_plan_period,
cdm,payer_plan_period,payer_plan_period_start_date,Yes,DATE,The start date of the payer plan period.,payer_plan_period,
cdm,payer_plan_period,payer_plan_period_end_date,Yes,DATE,The end date of the payer plan period.,payer_plan_period,
cdm,payer_plan_period,payer_source_value,No,VARCHAR(50),The source code for the payer as it appears in the source data.,,
cdm,payer_plan_period,plan_source_value,No,VARCHAR(50),The source code for the Persons health benefit plan as it appears in the source data.,,
cdm,payer_plan_period,family_source_value,No,VARCHAR(50),The source code for the Persons family as it appears in the source data.,,
cdm,care_site,care_site_id,Yes,INTEGER,A unique identifier for each Care Site.,care_site,
cdm,care_site,care_site_name,No,VARCHAR(255),The verbatim description or name of the Care Site as in data source,care_site,
cdm,care_site,place_of_service_concept_id,No,INTEGER,A foreign key that refers to a Place of Service Concept ID in the Standardized Vocabularies.,care_site,
cdm,care_site,location_id,No,INTEGER,"A foreign key to the geographic Location in the LOCATION table, where the detailed address information is stored.",care_site,
cdm,care_site,care_site_source_value,No,VARCHAR(50),"The identifier for the Care Site in the source data, stored here for reference.",care_site,
cdm,care_site,place_of_service_source_value,No,VARCHAR(50),"The source code for the Place of Service as it appears in the source data, stored here for reference.",care_site,
cdm,location,location_id,Yes,INTEGER,A unique identifier for each geographic location.,location,
cdm,location,address_1,No,VARCHAR(50),"The address field 1, typically used for the street address, as it appears in the source data.",location,
cdm,location,address_2,No,VARCHAR(50),"The address field 2, typically used for additional detail such as buildings, suites, floors, as it appears in the source data.",location,
cdm,location,city,No,VARCHAR(50),The city field as it appears in the source data.,location,
cdm,location,state,No,VARCHAR(2),The state field as it appears in the source data.,location,
cdm,location,zip,No,VARCHAR(9),The zip or postal code.,location,
cdm,location,county,No,VARCHAR(20),The county.,location,
cdm,location,location_source_value,No,VARCHAR(50),The verbatim information that is used to uniquely identify the location as it appears in the source data.,location,
cdm,provider,provider_id,Yes,INTEGER,A unique identifier for each Provider.,provider,
cdm,provider,provider_name,No,VARCHAR(255),A description of the Provider.,provider,
cdm,provider,npi,No,VARCHAR(20),The National Provider Identifier (NPI) of the provider.,provider,
cdm,provider,dea,No,VARCHAR(20),The Drug Enforcement Administration (DEA) number of the provider.,provider,
cdm,provider,specialty_concept_id,No,INTEGER,A foreign key to a Standard Specialty Concept ID in the Standardized Vocabularies.,provider,
cdm,provider,care_site_id,No,INTEGER,A foreign key to the main Care Site where the provider is practicing.,provider,
cdm,provider,year_of_birth,No,INTEGER,The year of birth of the Provider.,provider,
cdm,provider,gender_concept_id,No,INTEGER,The gender of the Provider.,provider,
cdm,provider,provider_source_value,No,VARCHAR(50),"The identifier used for the Provider in the source data, stored here for reference.",provider,
cdm,provider,specialty_source_value,No,VARCHAR(50),"The source code for the Provider specialty as it appears in the source data, stored here for reference.",provider,
cdm,provider,specialty_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code used in the source.,provider,
cdm,provider,gender_source_value,No,VARCHAR(50),"The gender code for the Provider as it appears in the source data, stored here for reference.",provider,
cdm,provider,gender_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code used in the source.,provider,
cdm,cdm_source,cdm_source_name,Yes,VARCHAR(255),The full name of the source,cdm_source,
cdm,cdm_source,cdm_source_abbreviation,No,VARCHAR(25),An abbreviation of the name,cdm_source,
cdm,cdm_source,cdm_holder,No,VARCHAR(255),The name of the organization responsible for the development of the CDM instance,cdm_source,
cdm,cdm_source,source_description,No,CLOB,A description of the source data origin and purpose for collection. The description may contain a summary of the period of time that is expected to be covered by this dataset.,cdm_source,
cdm,cdm_source,source_documentation_reference,No,VARCHAR(255),URL or other external reference to location of source documentation,cdm_source,
cdm,cdm_source,cdm_etl _reference,No,VARCHAR(255),URL or other external reference to location of ETL specification documentation and ETL source code,cdm_source,
cdm,cdm_source,source_release_date,No,DATE,"The date for which the source data are most current, such as the last day of data capture",cdm_source,
cdm,cdm_source,cdm_release_date,No,DATE,The date when the CDM was instantiated,cdm_source,
cdm,cdm_source,cdm_version,No,VARCHAR(10),The version of CDM used,cdm_source,
cdm,cdm_source,vocabulary_version,No,VARCHAR(20),The version of the vocabulary used,cdm_source,
results,cohort_definition,cohort_definition_id,Yes,INTEGER,A unique identifier for each Cohort.,cohort_definition,
results,cohort_definition,cohort_definition_name,Yes,VARCHAR(255),A short description of the Cohort.,cohort_definition,
results,cohort_definition,cohort_definition_description,No,VARCHAR(MAX),A complete description of the Cohort definition,cohort_definition,
results,cohort_definition,definition_type_concept_id,Yes,INTEGER,Type defining what kind of Cohort Definition the record represents and how the syntax may be executed,cohort_definition,
results,cohort_definition,cohort_definition_syntax,No,VARCHAR(MAX),Syntax or code to operationalize the Cohort definition,cohort_definition,
results,cohort_definition,subject_concept_id,Yes,INTEGER,"A foreign key to the Concept to which defines the domain of subjects that are members of the cohort (e.g., Person, Provider, Visit).",cohort_definition,
results,cohort_definition,cohort_instantiation_date,No,DATE,A date to indicate when the Cohort was instantiated in the COHORT table,cohort_definition,
cdm,concept,concept_id,Yes,INTEGER,A unique identifier for each Concept across all domains.,concept,
cdm,concept,concept_name,Yes,VARCHAR(255),"An unambiguous, meaningful and descriptive name for the Concept.",concept,
cdm,concept,domain_id,Yes,VARCHAR(20),A foreign key to the [DOMAIN](https://github.com/OHDSI/CommonDataModel/wiki/DOMAIN) table the Concept belongs to.,concept,
cdm,concept,vocabulary_id,Yes,VARCHAR(20),A foreign key to the [VOCABULARY](https://github.com/OHDSI/CommonDataModel/wiki/VOCABULARY) table indicating from which source the Concept has been adapted.,concept,
cdm,concept,concept_class_id,Yes,VARCHAR(20),"The attribute or concept class of the Concept. Examples are 'Clinical Drug', 'Ingredient', 'Clinical Finding' etc.",concept,
cdm,concept,standard_concept,No,VARCHAR(1),"This flag determines where a Concept is a Standard Concept, i.e. is used in the data, a Classification Concept, or a non-standard Source Concept. The allowables values are 'S' (Standard Concept) and 'C' (Classification Concept), otherwise the content is NULL.",concept,
cdm,concept,concept_code,Yes,VARCHAR(50),"The concept code represents the identifier of the Concept in the source vocabulary, such as SNOMED-CT concept IDs, RxNorm RXCUIs etc. Note that concept codes are not unique across vocabularies.",concept,
cdm,concept,valid_start_date,Yes,DATE,"The date when the Concept was first recorded. The default value is 1-Jan-1970, meaning, the Concept has no (known) date of inception.",concept,
cdm,concept,valid_end_date,Yes,DATE,"The date when the Concept became invalid because it was deleted or superseded (updated) by a new concept. The default value is 31-Dec-2099, meaning, the Concept is valid until it becomes deprecated.",concept,
cdm,concept,invalid_reason,No,VARCHAR(1),"Reason the Concept was invalidated. Possible values are D (deleted), U (replaced with an update) or NULL when valid_end_date has the default value.",concept,
cdm,concept_ancestor,ancestor_concept_id,Yes,INTEGER,A foreign key to the concept in the concept table for the higher-level concept that forms the ancestor in the relationship.,concept_ancestor,
cdm,concept_ancestor,descendant_concept_id,Yes,INTEGER,A foreign key to the concept in the concept table for the lower-level concept that forms the descendant in the relationship.,concept_ancestor,
cdm,concept_ancestor,min_levels_of_separation,Yes,INTEGER,The minimum separation in number of levels of hierarchy between ancestor and descendant concepts. This is an attribute that is used to simplify hierarchic analysis.,concept_ancestor,
cdm,concept_ancestor,max_levels_of_separation,Yes,INTEGER,The maximum separation in number of levels of hierarchy between ancestor and descendant concepts. This is an attribute that is used to simplify hierarchic analysis.,concept_ancestor,
cdm,concept_class,concept_class_id,Yes,VARCHAR(20),A unique key for each class.,concept_class,
cdm,concept_class,concept_class_name,Yes,VARCHAR(255),"The name describing the Concept Class, e.g. ""Clinical Finding"", ""Ingredient"", etc.",concept_class,
cdm,concept_class,concept_class_concept_id,Yes,INTEGER,A foreign key that refers to an identifier in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table for the unique Concept Class the record belongs to.,concept_class,
cdm,concept_relationship,concept_id_1,Yes,INTEGER,"A foreign key to a Concept in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table associated with the relationship. Relationships are directional, and this field represents the source concept designation.",concept_relationship,
cdm,concept_relationship,concept_id_2,Yes,INTEGER,"A foreign key to a Concept in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table associated with the relationship. Relationships are directional, and this field represents the destination concept designation.",concept_relationship,
cdm,concept_relationship,relationship_id,Yes,VARCHAR(20),A unique identifier to the type or nature of the Relationship as defined in the [RELATIONSHIP](https://github.com/OHDSI/CommonDataModel/wiki/RELATIONSHIP) table.,concept_relationship,
cdm,concept_relationship,valid_start_date,Yes,DATE,The date when the instance of the Concept Relationship is first recorded.,concept_relationship,
cdm,concept_relationship,valid_end_date,Yes,DATE,The date when the Concept Relationship became invalid because it was deleted or superseded (updated) by a new relationship. Default value is 31-Dec-2099.,concept_relationship,
cdm,concept_relationship,invalid_reason,No,VARCHAR(1),"Reason the relationship was invalidated. Possible values are 'D' (deleted), 'U' (replaced with an update) or NULL when valid_end_date has the default value.",concept_relationship,
cdm,concept_synonym,concept_id,Yes,INTEGER,A foreign key to the Concept in the CONCEPT table.,concept_synonym,
cdm,concept_synonym,concept_synonym_name,Yes,VARCHAR(1000),The alternative name for the Concept.,concept_synonym,
cdm,concept_synonym,language_concept_id,Yes,INTEGER,A foreign key to a Concept representing the language.,concept_synonym,
cdm,domain,domain_id,Yes,VARCHAR(20),A unique key for each domain.,domain,
cdm,domain,domain_name,Yes,VARCHAR(255),"The name describing the Domain, e.g. ""Condition"", ""Procedure"", ""Measurement"" etc.",domain,
cdm,domain,domain_concept_id,Yes,INTEGER,A foreign key that refers to an identifier in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table for the unique Domain Concept the Domain record belongs to.,domain,
cdm,drug_strength,drug_concept_id,Yes,INTEGER,A foreign key to the Concept in the CONCEPT table representing the identifier for Branded Drug or Clinical Drug Concept.,drug_strength,
cdm,drug_strength,ingredient_concept_id,Yes,INTEGER,"A foreign key to the Concept in the CONCEPT table, representing the identifier for drug Ingredient Concept contained within the drug product.",drug_strength,
cdm,drug_strength,amount_value,No,FLOAT,The numeric value associated with the amount of active ingredient contained within the product.,drug_strength,
cdm,drug_strength,amount_unit_concept_id,No,INTEGER,A foreign key to the Concept in the CONCEPT table representing the identifier for the Unit for the absolute amount of active ingredient.,drug_strength,
cdm,drug_strength,numerator_value,No,FLOAT,The numeric value associated with the concentration of the active ingredient contained in the product,drug_strength,
cdm,drug_strength,numerator_unit_concept_id,No,INTEGER,A foreign key to the Concept in the CONCEPT table representing the identifier for the numerator Unit for the concentration of active ingredient.,drug_strength,
cdm,drug_strength,denominator_value,No,FLOAT,"The amount of total liquid (or other divisible product, such as ointment, gel, spray, etc.).",drug_strength,
cdm,drug_strength,denominator_unit_concept_id,No,INTEGER,A foreign key to the Concept in the CONCEPT table representing the identifier for the denominator Unit for the concentration of active ingredient.,drug_strength,
cdm,drug_strength,box_size,No,INTEGER,"The number of units of Clinical of Branded Drug, or Quantified Clinical or Branded Drug contained in a box as dispensed to the patient",drug_strength,
cdm,drug_strength,valid_start_date,Yes,DATE,The date when the Concept was first recorded. The default value is 1-Jan-1970.,drug_strength,
cdm,drug_strength,valid_end_date,Yes,DATE,The date when the concept became invalid because it was deleted or superseded (updated) by a new Concept. The default value is 31-Dec-2099.,drug_strength,
cdm,drug_strength,invalid_reason,No,VARCHAR(1),"Reason the concept was invalidated. Possible values are 'D' (deleted), 'U' (replaced with an update) or NULL when valid_end_date has the default value.",drug_strength,
cdm,relationship,relationship_id,Yes,VARCHAR(20),The type of relationship captured by the relationship record.,relationship,
cdm,relationship,relationship_name,Yes,VARCHAR(255),The text that describes the relationship type.,relationship,
cdm,relationship,is_hierarchical,Yes,VARCHAR(1),Defines whether a relationship defines concepts into classes or hierarchies. Values are 1 for hierarchical relationship or 0 if not.,relationship,
cdm,relationship,defines_ancestry,Yes,VARCHAR(1),Defines whether a hierarchical relationship contributes to the concept_ancestor table. These are subsets of the hierarchical relationships. Valid values are 1 or 0.,relationship,
cdm,relationship,reverse_relationship_id,Yes,VARCHAR(20),The identifier for the relationship used to define the reverse relationship between two concepts.,relationship,
cdm,relationship,relationship_concept_id,Yes,INTEGER,A foreign key that refers to an identifier in the CONCEPT table for the unique relationship concept.,relationship,
cdm,source_to_concept_map,source_code,Yes,VARCHAR(50),The source code being translated into a Standard Concept.,source_to_concept_map,
cdm,source_to_concept_map,source_concept_id,Yes,INTEGER,A foreign key to the Source Concept that is being translated into a Standard Concept.,source_to_concept_map,
cdm,source_to_concept_map,source_vocabulary_id,Yes,VARCHAR(20),A foreign key to the VOCABULARY table defining the vocabulary of the source code that is being translated to a Standard Concept.,source_to_concept_map,
cdm,source_to_concept_map,source_code_description,No,VARCHAR(255),An optional description for the source code. This is included as a convenience to compare the description of the source code to the name of the concept.,source_to_concept_map,
cdm,source_to_concept_map,target_concept_id,Yes,INTEGER,A foreign key to the target Concept to which the source code is being mapped.,source_to_concept_map,
cdm,source_to_concept_map,target_vocabulary_id,Yes,VARCHAR(20),A foreign key to the VOCABULARY table defining the vocabulary of the target Concept.,source_to_concept_map,
cdm,source_to_concept_map,valid_start_date,Yes,DATE,The date when the mapping instance was first recorded.,source_to_concept_map,
cdm,source_to_concept_map,valid_end_date,Yes,DATE,The date when the mapping instance became invalid because it was deleted or superseded (updated) by a new relationship. Default value is 31-Dec-2099.,source_to_concept_map,
cdm,source_to_concept_map,invalid_reason,No,VARCHAR(1),"Reason the mapping instance was invalidated. Possible values are D (deleted), U (replaced with an update) or NULL when valid_end_date has the default value.",source_to_concept_map,
cdm,vocabulary,vocabulary_id,Yes,VARCHAR(20),"A unique identifier for each Vocabulary, such as ICD9CM, SNOMED, Visit.",vocabulary,
cdm,vocabulary,vocabulary_name,Yes,VARCHAR(255),"The name describing the vocabulary, for example ""International Classification of Diseases, Ninth Revision, Clinical Modification, Volume 1 and 2 (NCHS)"" etc.",vocabulary,
cdm,vocabulary,vocabulary_reference,Yes,VARCHAR(255),External reference to documentation or available download of the about the vocabulary.,vocabulary,
cdm,vocabulary,vocabulary_version,Yes,VARCHAR(255),Version of the Vocabulary as indicated in the source.,vocabulary,
cdm,vocabulary,vocabulary_concept_id,Yes,INTEGER,A foreign key that refers to a standard concept identifier in the CONCEPT table for the Vocabulary the VOCABULARY record belongs to.,vocabulary,
1 schema table field required type description table
2 cdm condition_occurrence condition_occurrence_id Yes INTEGER A unique identifier for each Condition Occurrence event. condition_occurrence
3 cdm condition_occurrence person_id Yes INTEGER A foreign key identifier to the Person who is experiencing the condition. The demographic details of that Person are stored in the PERSON table. condition_occurrence
4 cdm condition_occurrence condition_concept_id Yes INTEGER A foreign key that refers to a Standard Condition Concept identifier in the Standardized Vocabularies. condition_occurrence
5 cdm condition_occurrence condition_start_date Yes DATE The date when the instance of the Condition is recorded. condition_occurrence
6 cdm condition_occurrence condition_start_datetime No DATETIME The date and time when the instance of the Condition is recorded. condition_occurrence
7 cdm condition_occurrence condition_end_date No DATE The date when the instance of the Condition is considered to have ended. condition_occurrence
8 cdm condition_occurrence condition_end_datetime No DATE The date when the instance of the Condition is considered to have ended. condition_occurrence
9 cdm condition_occurrence condition_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the source data from which the condition was recorded, the level of standardization, and the type of occurrence. condition_occurrence
10 cdm condition_occurrence stop_reason No VARCHAR(20) The reason that the condition was no longer present, as indicated in the source data. condition_occurrence
11 cdm condition_occurrence provider_id No INTEGER A foreign key to the Provider in the PROVIDER table who was responsible for capturing (diagnosing) the Condition. condition_occurrence
12 cdm condition_occurrence visit_occurrence_id No INTEGER A foreign key to the visit in the VISIT_OCCURRENCE table during which the Condition was determined (diagnosed). condition_occurrence
13 cdm condition_occurrence condition_source_value No VARCHAR(50) The source code for the condition as it appears in the source data. This code is mapped to a standard condition concept in the Standardized Vocabularies and the original code is stored here for reference. condition_occurrence
14 cdm condition_occurrence condition_source_concept_id No INTEGER A foreign key to a Condition Concept that refers to the code used in the source. condition_occurrence
15 cdm condition_occurrence condition_status_source_value No VARCHAR(50) The source code for the condition status as it appears in the source data. condition_occurrence
16 cdm condition_occurrence condition_status_concept_id No INTEGER A foreign key to the predefined Concept in the Standard Vocabulary reflecting the condition status condition_occurrence
17 cdm death person_id Yes INTEGER A foreign key identifier to the deceased person. The demographic details of that person are stored in the person table. death
18 cdm death death_date Yes DATE The date the person was deceased. If the precise date including day or month is not known or not allowed, December is used as the default month, and the last day of the month the default day. death
19 cdm death death_datetime No DATETIME The date and time the person was deceased. If the precise date including day or month is not known or not allowed, December is used as the default month, and the last day of the month the default day. death
20 cdm death death_type_concept_id Yes INTEGER A foreign key referring to the predefined concept identifier in the Standardized Vocabularies reflecting how the death was represented in the source data. death
21 cdm death cause_concept_id No INTEGER A foreign key referring to a standard concept identifier in the Standardized Vocabularies for conditions. death
22 cdm death cause_source_value No VARCHAR(50) The source code for the cause of death as it appears in the source data. This code is mapped to a standard concept in the Standardized Vocabularies and the original code is, stored here for reference. death
23 cdm death cause_source_concept_id No INTEGER A foreign key to the concept that refers to the code used in the source. Note, this variable name is abbreviated to ensure it will be allowable across database platforms. death
24 cdm device_exposure device_exposure_id Yes INTEGER A system-generated unique identifier for each Device Exposure. device_exposure
25 cdm device_exposure person_id Yes INTEGER A foreign key identifier to the Person who is subjected to the Device. The demographic details of that person are stored in the Person table. device_exposure
26 cdm device_exposure device_concept_id Yes INTEGER A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Device concept. device_exposure
27 cdm device_exposure device_exposure_start_date Yes DATE The date the Device or supply was applied or used. device_exposure
28 cdm device_exposure device_exposure_start_datetime No DATETIME The date and time the Device or supply was applied or used. device_exposure
29 cdm device_exposure device_exposure_end_date No DATE The date the Device or supply was removed from use. device_exposure
30 cdm device_exposure device_exposure_end_datetime No DATETIME The date and time the Device or supply was removed from use. device_exposure
31 cdm device_exposure device_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of Device Exposure recorded. It indicates how the Device Exposure was represented in the source data. device_exposure
32 cdm device_exposure unique_device_id No VARCHAR(50) A UDI or equivalent identifying the instance of the Device used in the Person. device_exposure
33 cdm device_exposure quantity No INTEGER The number of individual Devices used for the exposure. device_exposure
34 cdm device_exposure provider_id No INTEGER A foreign key to the provider in the PROVIDER table who initiated of administered the Device. device_exposure
35 cdm device_exposure visit_occurrence_id No INTEGER A foreign key to the visit in the VISIT_OCCURRENCE table during which the device was used. device_exposure
36 cdm device_exposure device_source_value No VARCHAR(50) The source code for the Device as it appears in the source data. This code is mapped to a standard Device Concept in the Standardized Vocabularies and the original code is stored here for reference. device_exposure
37 cdm device_exposure device_source_concept_id No INTEGER A foreign key to a Device Concept that refers to the code used in the source. device_exposure
38 cdm drug_exposure drug_exposure_id Yes INTEGER A system-generated unique identifier for each Drug utilization event. drug_exposure
39 cdm drug_exposure person_id Yes INTEGER A foreign key identifier to the person who is subjected to the Drug. The demographic details of that person are stored in the person table. drug_exposure
40 cdm drug_exposure drug_concept_id Yes INTEGER A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Drug concept. drug_exposure
41 cdm drug_exposure drug_exposure_start_date Yes DATE The start date for the current instance of Drug utilization. Valid entries include a start date of a prescription, the date a prescription was filled, or the date on which a Drug administration procedure was recorded. drug_exposure
42 cdm drug_exposure drug_exposure_start_datetime No DATETIME The start date and time for the current instance of Drug utilization. Valid entries include a start date of a prescription, the date a prescription was filled, or the date on which a Drug administration procedure was recorded. drug_exposure
43 cdm drug_exposure drug_exposure_end_date Yes DATE The end date for the current instance of Drug utilization. It is not available from all sources. drug_exposure
44 cdm drug_exposure drug_exposure_end_datetime No DATETIME The end date and time for the current instance of Drug utilization. It is not available from all sources. drug_exposure
45 cdm drug_exposure verbatim_end_date No DATE The known end date of a drug_exposure as provided by the source drug_exposure
46 cdm drug_exposure drug_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of Drug Exposure recorded. It indicates how the Drug Exposure was represented in the source data. drug_exposure
47 cdm drug_exposure stop_reason No VARCHAR(20) The reason the Drug was stopped. Reasons include regimen completed, changed, removed, etc. drug_exposure
48 cdm drug_exposure refills No INTEGER The number of refills after the initial prescription. The initial prescription is not counted, values start with 0. drug_exposure
49 cdm drug_exposure quantity No FLOAT The quantity of drug as recorded in the original prescription or dispensing record. drug_exposure
50 cdm drug_exposure days_supply No INTEGER The number of days of supply of the medication as recorded in the original prescription or dispensing record. drug_exposure
51 cdm drug_exposure sig No VARCHAR(MAX) The directions ("signetur") on the Drug prescription as recorded in the original prescription (and printed on the container) or dispensing record. drug_exposure
52 cdm drug_exposure route_concept_id No INTEGER A foreign key to a predefined concept in the Standardized Vocabularies reflecting the route of administration. drug_exposure
53 cdm drug_exposure lot_number No VARCHAR(50) An identifier assigned to a particular quantity or lot of Drug product from the manufacturer. drug_exposure
54 cdm drug_exposure provider_id No INTEGER A foreign key to the provider in the PROVIDER table who initiated (prescribed or administered) the Drug Exposure. drug_exposure
55 cdm drug_exposure visit_occurrence_id No INTEGER A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Drug Exposure was initiated. drug_exposure
56 cdm drug_exposure drug_source_value No VARCHAR(50) The source code for the Drug as it appears in the source data. This code is mapped to a Standard Drug concept in the Standardized Vocabularies and the original code is, stored here for reference. drug_exposure
57 cdm drug_exposure drug_source_concept_id No INTEGER A foreign key to a Drug Concept that refers to the code used in the source. drug_exposure
58 cdm drug_exposure route_source_value No VARCHAR(50) The information about the route of administration as detailed in the source. drug_exposure
59 cdm drug_exposure dose_unit_source_value No VARCHAR(50) The information about the dose unit as detailed in the source. drug_exposure
60 cdm fact_relationship domain_concept_id_1 Yes INTEGER The concept representing the domain of fact one, from which the corresponding table can be inferred. fact_relationship
61 cdm fact_relationship fact_id_1 Yes INTEGER The unique identifier in the table corresponding to the domain of fact one. fact_relationship
62 cdm fact_relationship domain_concept_id_2 Yes INTEGER The concept representing the domain of fact two, from which the corresponding table can be inferred. fact_relationship
63 cdm fact_relationship fact_id_2 Yes INTEGER The unique identifier in the table corresponding to the domain of fact two. fact_relationship
64 cdm fact_relationship relationship_concept_id Yes INTEGER A foreign key to a Standard Concept ID of relationship in the Standardized Vocabularies. fact_relationship
65 cdm measurement measurement_id Yes INTEGER A unique identifier for each Measurement. measurement
66 cdm measurement person_id Yes INTEGER A foreign key identifier to the Person about whom the measurement was recorded. The demographic details of that Person are stored in the PERSON table. measurement
67 cdm measurement measurement_concept_id Yes INTEGER A foreign key to the standard measurement concept identifier in the Standardized Vocabularies. measurement
68 cdm measurement measurement_date Yes DATE The date of the Measurement. measurement
69 cdm measurement measurement_datetime No DATETIME The date and time of the Measurement. Some database systems don't have a datatype of time. To accomodate all temporal analyses, datatype datetime can be used (combining measurement_date and measurement_time [forum discussion](http://forums.ohdsi.org/t/date-time-and-datetime-problem-and-the-world-of-hours-and-1day/314)) measurement
70 cdm measurement measurement_type_concept_id Yes INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the provenance from where the Measurement record was recorded. measurement
71 cdm measurement operator_concept_id No INTEGER A foreign key identifier to the predefined Concept in the Standardized Vocabularies reflecting the mathematical operator that is applied to the value_as_number. Operators are <, <=, =, >=, >. measurement
72 cdm measurement value_as_number No FLOAT A Measurement result where the result is expressed as a numeric value. measurement
73 cdm measurement value_as_concept_id No INTEGER A foreign key to a Measurement result represented as a Concept from the Standardized Vocabularies (e.g., positive/negative, present/absent, low/high, etc.). measurement
74 cdm measurement unit_concept_id No INTEGER A foreign key to a Standard Concept ID of Measurement Units in the Standardized Vocabularies. measurement
75 cdm measurement range_low No FLOAT The lower limit of the normal range of the Measurement result. The lower range is assumed to be of the same unit of measure as the Measurement value. measurement
76 cdm measurement range_high No FLOAT The upper limit of the normal range of the Measurement. The upper range is assumed to be of the same unit of measure as the Measurement value. measurement
77 cdm measurement provider_id No INTEGER A foreign key to the provider in the PROVIDER table who was responsible for initiating or obtaining the measurement. measurement
78 cdm measurement visit_occurrence_id No INTEGER A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Measurement was recorded. measurement
79 cdm measurement measurement_source_value No VARCHAR(50) The Measurement name as it appears in the source data. This code is mapped to a Standard Concept in the Standardized Vocabularies and the original code is stored here for reference. measurement
80 cdm measurement measurement_source_concept_id No INTEGER A foreign key to a Concept in the Standard Vocabularies that refers to the code used in the source. measurement
81 cdm measurement unit_source_value No VARCHAR(50) The source code for the unit as it appears in the source data. This code is mapped to a standard unit concept in the Standardized Vocabularies and the original code is stored here for reference. measurement
82 cdm measurement value_source_value No VARCHAR(50) The source value associated with the content of the value_as_number or value_as_concept_id as stored in the source data. measurement
83 cdm note note_id Yes INTEGER A unique identifier for each note. note
84 cdm note person_id Yes INTEGER A foreign key identifier to the Person about whom the Note was recorded. The demographic details of that Person are stored in the PERSON table. note
85 cdm note note_date Yes DATE The date the note was recorded. note
86 cdm note note_datetime No DATETIME The date and time the note was recorded. note
87 cdm note note_type_concept_id Yes INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the type, origin or provenance of the Note. note
88 cdm note note_class_concept_id Yes INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the HL7 LOINC Document Type Vocabulary classification of the note. note
89 cdm note note_title No VARCHAR(250) The title of the Note as it appears in the source. note
90 cdm note note_text Yes VARCHAR(MAX) The content of the Note. note
91 cdm note encoding_concept_id Yes INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the note character encoding type note
92 cdm note language_concept_id Yes INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the language of the note note
93 cdm note provider_id No INTEGER A foreign key to the Provider in the PROVIDER table who took the Note. note
94 cdm note note_source_value No VARCHAR(50) The source value associated with the origin of the Note note
95 cdm note visit_occurrence_id No INTEGER A foreign key to the Visit in the VISIT_OCCURRENCE table when the Note was taken. note
96 cdm note_nlp note_nlp_id Yes INTEGER A unique identifier for each term extracted from a note. note_nlp
97 cdm note_nlp note_id Yes INTEGER A foreign key to the Note table note the term was extracted from. note_nlp
98 cdm note_nlp section_concept_id No INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies representing the section of the extracted term. note_nlp
99 cdm note_nlp snippet No VARCHAR(250) A small window of text surrounding the term. note_nlp
100 cdm note_nlp offset No VARCHAR(50) Character offset of the extracted term in the input note. note_nlp
101 cdm note_nlp lexical_variant Yes VARCHAR(250) Raw text extracted from the NLP tool. note_nlp
102 cdm note_nlp note_nlp_concept_id No INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the normalized concept for the extracted term. Domain of the term is represented as part of the Concept table. note_nlp
103 cdm note_nlp note_nlp_source_concept_id No INTEGER A foreign key to a Concept that refers to the code in the source vocabulary used by the NLP system note_nlp
104 cdm note_nlp nlp_system No VARCHAR(250) Name and version of the NLP system that extracted the term.Useful for data provenance. note_nlp
105 cdm note_nlp nlp_date Yes DATE The date of the note processing.Useful for data provenance. note_nlp
106 cdm note_nlp nlp_date_time No DATETIME The date and time of the note processing. Useful for data provenance. note_nlp
107 cdm note_nlp term_exists No VARCHAR(1) A summary modifier that signifies presence or absence of the term for a given patient. Useful for quick querying. * note_nlp
108 cdm note_nlp term_temporal No VARCHAR(50) An optional time modifier associated with the extracted term. (for now �past� or �present� only). Standardize it later. note_nlp
109 cdm note_nlp term_modifiers No VARCHAR(2000) A compact description of all the modifiers of the specific term extracted by the NLP system. (e.g. �son has rash� ? �negated=no,subject=family, certainty=undef,conditional=false,general=false�). note_nlp
110 cdm observation observation_id Yes INTEGER A unique identifier for each observation. observation
111 cdm observation person_id Yes INTEGER A foreign key identifier to the Person about whom the observation was recorded. The demographic details of that Person are stored in the PERSON table. observation
112 cdm observation observation_concept_id Yes INTEGER A foreign key to the standard observation concept identifier in the Standardized Vocabularies. observation
113 cdm observation observation_date Yes DATE The date of the observation. observation
114 cdm observation observation_datetime No DATETIME The date and time of the observation. observation
115 cdm observation observation_type_concept_id Yes INTEGER A foreign key to the predefined concept identifier in the Standardized Vocabularies reflecting the type of the observation. observation
116 cdm observation value_as_number No FLOAT The observation result stored as a number. This is applicable to observations where the result is expressed as a numeric value. observation
117 cdm observation value_as_string No VARCHAR(60) The observation result stored as a string. This is applicable to observations where the result is expressed as verbatim text. observation
118 cdm observation value_as_concept_id No INTEGER A foreign key to an observation result stored as a Concept ID. This is applicable to observations where the result can be expressed as a Standard Concept from the Standardized Vocabularies (e.g., positive/negative, present/absent, low/high, etc.). observation
119 cdm observation qualifier_concept_id No INTEGER A foreign key to a Standard Concept ID for a qualifier (e.g., severity of drug-drug interaction alert) observation
120 cdm observation unit_concept_id No INTEGER A foreign key to a Standard Concept ID of measurement units in the Standardized Vocabularies. observation
121 cdm observation provider_id No INTEGER A foreign key to the provider in the PROVIDER table who was responsible for making the observation. observation
122 cdm observation visit_occurrence_id No INTEGER A foreign key to the visit in the VISIT_OCCURRENCE table during which the observation was recorded. observation
123 cdm observation observation_source_value No VARCHAR(50) The observation code as it appears in the source data. This code is mapped to a Standard Concept in the Standardized Vocabularies and the original code is, stored here for reference. observation
124 cdm observation observation_source_concept_id No INTEGER A foreign key to a Concept that refers to the code used in the source. observation
125 cdm observation unit_source_value No VARCHAR(50) The source code for the unit as it appears in the source data. This code is mapped to a standard unit concept in the Standardized Vocabularies and the original code is, stored here for reference. observation
126 cdm observation qualifier_source_value No VARCHAR(50) The source value associated with a qualifier to characterize the observation observation
127 cdm observation_period observation_period_id Yes INTEGER A unique identifier for each observation period. observation_period
128 cdm observation_period person_id Yes INTEGER A foreign key identifier to the person for whom the observation period is defined. The demographic details of that person are stored in the person table. observation_period
129 cdm observation_period observation_period_start_date Yes DATE The start date of the observation period for which data are available from the data source. observation_period
130 cdm observation_period observation_period_end_date Yes DATE The end date of the observation period for which data are available from the data source. observation_period
131 cdm observation_period period_type_concept_id Yes INTEGER A foreign key identifier to the predefined concept in the Standardized Vocabularies reflecting the source of the observation period information observation_period
132 cdm person person_id Yes INTEGER A unique identifier for each person. person
133 cdm person gender_concept_id Yes INTEGER A foreign key that refers to an identifier in the CONCEPT table for the unique gender of the person. person
134 cdm person year_of_birth Yes INTEGER The year of birth of the person. For data sources with date of birth, the year is extracted. For data sources where the year of birth is not available, the approximate year of birth is derived based on any age group categorization available. person
135 cdm person month_of_birth No INTEGER The month of birth of the person. For data sources that provide the precise date of birth, the month is extracted and stored in this field. person
136 cdm person day_of_birth No INTEGER The day of the month of birth of the person. For data sources that provide the precise date of birth, the day is extracted and stored in this field. person
137 cdm person birth_datetime No DATETIME The date and time of birth of the person. person
138 cdm person race_concept_id Yes INTEGER A foreign key that refers to an identifier in the CONCEPT table for the unique race of the person. person
139 cdm person ethnicity_concept_id Yes INTEGER A foreign key that refers to the standard concept identifier in the Standardized Vocabularies for the ethnicity of the person. person
140 cdm person location_id No INTEGER A foreign key to the place of residency for the person in the location table, where the detailed address information is stored. person
141 cdm person provider_id No INTEGER A foreign key to the primary care provider the person is seeing in the provider table. person
142 cdm person care_site_id No INTEGER A foreign key to the site of primary care in the care_site table, where the details of the care site are stored. person
143 cdm person person_source_value No VARCHAR(50) An (encrypted) key derived from the person identifier in the source data. This is necessary when a use case requires a link back to the person data at the source dataset. person
144 cdm person gender_source_value No VARCHAR(50) The source code for the gender of the person as it appears in the source data. The person’s gender is mapped to a standard gender concept in the Standardized Vocabularies the original value is stored here for reference. person
145 cdm person gender_source_concept_id No INTEGER A foreign key to the gender concept that refers to the code used in the source. person
146 cdm person race_source_value No VARCHAR(50) The source code for the race of the person as it appears in the source data. The person race is mapped to a standard race concept in the Standardized Vocabularies and the original value is stored here for reference. person
147 cdm person race_source_concept_id No INTEGER A foreign key to the race concept that refers to the code used in the source. person
148 cdm person ethnicity_source_value No VARCHAR(50) The source code for the ethnicity of the person as it appears in the source data. The person ethnicity is mapped to a standard ethnicity concept in the Standardized Vocabularies and the original code is, stored here for reference. person
149 cdm person ethnicity_source_concept_id No INTEGER A foreign key to the ethnicity concept that refers to the code used in the source. person
150 cdm procedure_occurrence procedure_occurrence_id Yes INTEGER A system-generated unique identifier for each Procedure Occurrence. procedure_occurrence
151 cdm procedure_occurrence person_id Yes INTEGER A foreign key identifier to the Person who is subjected to the Procedure. The demographic details of that Person are stored in the PERSON table. procedure_occurrence
152 cdm procedure_occurrence procedure_concept_id Yes INTEGER A foreign key that refers to a standard procedure Concept identifier in the Standardized Vocabularies. procedure_occurrence
153 cdm procedure_occurrence procedure_date Yes DATE The date on which the Procedure was performed. procedure_occurrence
154 cdm procedure_occurrence procedure_datetime No DATETIME The date and time on which the Procedure was performed. procedure_occurrence
155 cdm procedure_occurrence procedure_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of source data from which the procedure record is derived. procedure_occurrence
156 cdm procedure_occurrence modifier_concept_id No INTEGER A foreign key to a Standard Concept identifier for a modifier to the Procedure (e.g. bilateral) procedure_occurrence
157 cdm procedure_occurrence quantity No INTEGER The quantity of procedures ordered or administered. procedure_occurrence
158 cdm procedure_occurrence provider_id No INTEGER A foreign key to the provider in the PROVIDER table who was responsible for carrying out the procedure. procedure_occurrence
159 cdm procedure_occurrence visit_occurrence_id No INTEGER A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Procedure was carried out. procedure_occurrence
160 cdm procedure_occurrence procedure_source_value No VARCHAR(50) The source code for the Procedure as it appears in the source data. This code is mapped to a standard procedure Concept in the Standardized Vocabularies and the original code is, stored here for reference. Procedure source codes are typically ICD-9-Proc, CPT-4, HCPCS or OPCS-4 codes. procedure_occurrence
161 cdm procedure_occurrence procedure_source_concept_id No INTEGER A foreign key to a Procedure Concept that refers to the code used in the source. procedure_occurrence
162 cdm procedure_occurrence qualifier_source_value No VARCHAR(50) The source code for the qualifier as it appears in the source data.
163 cdm specimen specimen_id Yes INTEGER A unique identifier for each specimen. specimen
164 cdm specimen person_id Yes INTEGER A foreign key identifier to the Person for whom the Specimen is recorded. specimen
165 cdm specimen specimen_concept_id Yes INTEGER A foreign key referring to a Standard Concept identifier in the Standardized Vocabularies for the Specimen. specimen
166 cdm specimen specimen_type_concept_id Yes INTEGER A foreign key referring to the Concept identifier in the Standardized Vocabularies reflecting the system of record from which the Specimen was represented in the source data. specimen
167 cdm specimen specimen_date Yes DATE The date the specimen was obtained from the Person. specimen
168 cdm specimen specimen_datetime No DATETIME The date and time on the date when the Specimen was obtained from the person. specimen
169 cdm specimen quantity No FLOAT The amount of specimen collection from the person during the sampling procedure. specimen
170 cdm specimen unit_concept_id No INTEGER A foreign key to a Standard Concept identifier for the Unit associated with the numeric quantity of the Specimen collection. specimen
171 cdm specimen anatomic_site_concept_id No INTEGER A foreign key to a Standard Concept identifier for the anatomic location of specimen collection. specimen
172 cdm specimen disease_status_concept_id No INTEGER A foreign key to a Standard Concept identifier for the Disease Status of specimen collection. specimen
173 cdm specimen specimen_source_id No VARCHAR(50) The Specimen identifier as it appears in the source data. specimen
174 cdm specimen specimen_source_value No VARCHAR(50) The Specimen value as it appears in the source data. This value is mapped to a Standard Concept in the Standardized Vocabularies and the original code is, stored here for reference. specimen
175 cdm specimen unit_source_value No VARCHAR(50) The information about the Unit as detailed in the source. specimen
176 cdm specimen anatomic_site_source_value No VARCHAR(50) The information about the anatomic site as detailed in the source. specimen
177 cdm specimen disease_status_source_value No VARCHAR(50) The information about the disease status as detailed in the source. specimen
178 cdm visit_occurrence visit_occurrence_id Yes INTEGER A unique identifier for each Person's visit or encounter at a healthcare provider. visit_occurrence
179 cdm visit_occurrence person_id Yes INTEGER A foreign key identifier to the Person for whom the visit is recorded. The demographic details of that Person are stored in the PERSON table. visit_occurrence
180 cdm visit_occurrence visit_concept_id Yes INTEGER A foreign key that refers to a visit Concept identifier in the Standardized Vocabularies. visit_occurrence
181 cdm visit_occurrence visit_start_date Yes DATE The start date of the visit. visit_occurrence
182 cdm visit_occurrence visit_start_datetime No DATETIME The date and time of the visit started. visit_occurrence
183 cdm visit_occurrence visit_end_date Yes DATE The end date of the visit. If this is a one-day visit the end date should match the start date. visit_occurrence
184 cdm visit_occurrence visit_end_datetime No DATETIME The date and time of the visit end. visit_occurrence
185 cdm visit_occurrence visit_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of source data from which the visit record is derived. visit_occurrence
186 cdm visit_occurrence provider_id No INTEGER A foreign key to the provider in the provider table who was associated with the visit. visit_occurrence
187 cdm visit_occurrence care_site_id No INTEGER A foreign key to the care site in the care site table that was visited. visit_occurrence
188 cdm visit_occurrence visit_source_value No VARCHAR(50) The source code for the visit as it appears in the source data. visit_occurrence
189 cdm visit_occurrence visit_source_concept_id No INTEGER A foreign key to a Concept that refers to the code used in the source. visit_occurrence
190 cdm visit_occurrence admitting_source_concept_id integer NO A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the admitting source for a visit. visit_occurrence
191 cdm visit_occurrence admitting_source_value varchar(50) NO The source code for the admitting source as it appears in the source data. visit_occurrence
192 cdm visit_occurrence discharge_to_concept_id integer NO A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the discharge disposition for a visit. visit_occurrence
193 cdm visit_occurrence discharge_to_source_value varchar(50) NO The source code for the discharge disposition as it appears in the source data. visit_occurrence
194 cdm visit_occurrence preceding_visit_occurrence_id integer NO A foreign key to the VISIT_OCCURRENCE table of the visit immediately preceding this visit visit_occurrence
195 results cohort cohort_definition_id Yes INTEGER A foreign key to a record in the COHORT_DEFINITION table containing relevant Cohort Definition information. cohort
196 results cohort subject_id Yes INTEGER A foreign key to the subject in the cohort. These could be referring to records in the PERSON, PROVIDER, VISIT_OCCURRENCE table. cohort
197 results cohort cohort_start_date Yes DATE The date when the Cohort Definition criteria for the Person, Provider or Visit first match. cohort
198 results cohort cohort_end_date Yes DATE The date when the Cohort Definition criteria for the Person, Provider or Visit no longer match or the Cohort membership was terminated. cohort
199 results cohort_attribute cohort_definition_id Yes INTEGER A foreign key to a record in the [COHORT_DEFINITION](https://github.com/OHDSI/CommonDataModel/wiki/COHORT_DEFINITION) table containing relevant Cohort Definition information. cohort_attribute
200 results cohort_attribute subject_id Yes INTEGER A foreign key to the subject in the Cohort. These could be referring to records in the PERSON, PROVIDER, VISIT_OCCURRENCE table. cohort_attribute
201 results cohort_attribute cohort_start_date Yes DATE The date when the Cohort Definition criteria for the Person, Provider or Visit first match. cohort_attribute
202 results cohort_attribute cohort_end_date Yes DATE The date when the Cohort Definition criteria for the Person, Provider or Visit no longer match or the Cohort membership was terminated. cohort_attribute
203 results cohort_attribute attribute_definition_id Yes INTEGER A foreign key to a record in the [ATTRIBUTE_DEFINITION](https://github.com/OHDSI/CommonDataModel/wiki/ATTRIBUTE_DEFINITION) table containing relevant Attribute Definition information. cohort_attribute
204 results cohort_attribute value_as_number No FLOAT The attribute result stored as a number. This is applicable to attributes where the result is expressed as a numeric value. cohort_attribute
205 results cohort_attribute value_as_concept_id No INTEGER The attribute result stored as a Concept ID. This is applicable to attributes where the result is expressed as a categorical value. cohort_attribute
206 cdm condition_era condition_era_id Yes INTEGER A unique identifier for each Condition Era. condition_era
207 cdm condition_era person_id Yes INTEGER A foreign key identifier to the Person who is experiencing the Condition during the Condition Era. The demographic details of that Person are stored in the PERSON table. condition_era
208 cdm condition_era condition_concept_id Yes INTEGER A foreign key that refers to a standard Condition Concept identifier in the Standardized Vocabularies. condition_era
209 cdm condition_era condition_era_start_date Yes DATE The start date for the Condition Era constructed from the individual instances of Condition Occurrences. It is the start date of the very first chronologically recorded instance of the condition. condition_era
210 cdm condition_era condition_era_end_date Yes DATE The end date for the Condition Era constructed from the individual instances of Condition Occurrences. It is the end date of the final continuously recorded instance of the Condition. condition_era
211 cdm condition_era condition_occurrence_count No INTEGER The number of individual Condition Occurrences used to construct the condition era. condition_era
212 cdm dose_era dose_era_id Yes INTEGER A unique identifier for each Dose Era. dose_era
213 cdm dose_era person_id Yes INTEGER A foreign key identifier to the Person who is subjected to the drug during the drug era. The demographic details of that Person are stored in the PERSON table. dose_era
214 cdm dose_era drug_concept_id Yes INTEGER A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the active Ingredient Concept. dose_era
215 cdm dose_era unit_concept_id Yes INTEGER A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the unit concept. dose_era
216 cdm dose_era dose_value Yes FLOAT The numeric value of the dose. dose_era
217 cdm dose_era dose_era_start_date Yes DATE The start date for the drug era constructed from the individual instances of drug exposures. It is the start date of the very first chronologically recorded instance of utilization of a drug. dose_era
218 cdm dose_era dose_era_end_date Yes DATE The end date for the drug era constructed from the individual instance of drug exposures. It is the end date of the final continuously recorded instance of utilization of a drug. dose_era
219 cdm drug_era drug_era_id Yes INTEGER A unique identifier for each Drug Era. drug_era
220 cdm drug_era person_id Yes INTEGER A foreign key identifier to the Person who is subjected to the Drug during the fDrug Era. The demographic details of that Person are stored in the PERSON table. drug_era
221 cdm drug_era drug_concept_id Yes INTEGER A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Ingredient Concept. drug_era
222 cdm drug_era drug_era_start_date Yes DATE The start date for the Drug Era constructed from the individual instances of Drug Exposures. It is the start date of the very first chronologically recorded instance of conutilization of a Drug. drug_era
223 cdm drug_era drug_era_end_date Yes DATE The end date for the drug era constructed from the individual instance of drug exposures. It is the end date of the final continuously recorded instance of utilization of a drug. drug_era
224 cdm drug_era drug_exposure_count No INTEGER The number of individual Drug Exposure occurrences used to construct the Drug Era. drug_era
225 cdm drug_era gap_days No INTEGER The number of days that are not covered by DRUG_EXPOSURE records that were used to make up the era record. drug_era
226 cdm cost cost_id Yes INTEGER A unique identifier for each COST record. cost
227 cdm cost cost_event_id Yes INTEGER A foreign key identifier to the event (e.g. Measurement, Procedure, Visit, Drug Exposure, etc) record for which cost data are recorded. cost
228 cdm cost cost_domain_id Yes VARCHAR(20) The concept representing the domain of the cost event, from which the corresponding table can be inferred that contains the entity for which cost information is recorded. cost
229 cdm cost cost_type_concept_id Yes INTEGER A foreign key identifier to a concept in the CONCEPT table for the provenance or the source of the COST data: Calculated from insurance claim information, provider revenue, calculated from cost-to-charge ratio, reported from accounting database, etc. cost
230 cdm cost currency_concept_id No INTEGER A foreign key identifier to the concept representing the 3-letter code used to delineate international currencies, such as USD for US Dollar. cost
231 cdm cost total_charge No FLOAT The total amount charged by some provider of goods or services (e.g. hospital, physician pharmacy, dme provider) to payers (insurance companies, the patient). cost
232 cdm cost total_cost No FLOAT The cost incurred by the provider of goods or services. cost
233 cdm cost total_paid No FLOAT The total amount actually paid from all payers for goods or services of the provider. cost
234 cdm cost paid_by_payer No FLOAT The amount paid by the Payer for the goods or services. cost
235 cdm cost paid_by_patient No FLOAT The total amount paid by the Person as a share of the expenses. cost
236 cdm cost paid_patient_copay No FLOAT The amount paid by the Person as a fixed contribution to the expenses. cost
237 cdm cost paid_patient_coinsurance No FLOAT The amount paid by the Person as a joint assumption of risk. Typically, this is a percentage of the expenses defined by the Payer Plan after the Person's deductible is exceeded. cost
238 cdm cost paid_patient_deductible No FLOAT The amount paid by the Person that is counted toward the deductible defined by the Payer Plan. paid_patient_deductible does contribute to the paid_by_patient variable. cost
239 cdm cost paid_by_primary No FLOAT The amount paid by a primary Payer through the coordination of benefits. cost
240 cdm cost paid_ingredient_cost No FLOAT The amount paid by the Payer to a pharmacy for the drug, excluding the amount paid for dispensing the drug. paid_ingredient_cost contributes to the paid_by_payer field if this field is populated with a nonzero value. cost
241 cdm cost paid_dispensing_fee No FLOAT The amount paid by the Payer to a pharmacy for dispensing a drug, excluding the amount paid for the drug ingredient. paid_dispensing_fee contributes to the paid_by_payer field if this field is populated with a nonzero value. cost
242 cdm cost payer_plan_period_id No INTEGER A foreign key to the PAYER_PLAN_PERIOD table, where the details of the Payer, Plan and Family are stored. Record the payer_plan_id that relates to the payer who contributed to the paid_by_payer field. cost
243 cdm cost amount_allowed No FLOAT The contracted amount agreed between the payer and provider. cost
244 cdm cost revenue_code_concept_id No INTEGER A foreign key referring to a Standard Concept ID in the Standardized Vocabularies for Revenue codes. cost
245 cdm cost revenue_code_source_value No VARCHAR(50) The source code for the Revenue code as it appears in the source data, stored here for reference. cost
246 cdm cost drg_concept_id No INTEGER A foreign key to the predefined concept in the DRG Vocabulary reflecting the DRG for a visit. cost
247 cdm cost drg_source_value No VARCHAR(3) The 3-digit DRG source code as it appears in the source data. cost
248 cdm payer_plan_period payer_plan_period_id Yes INTEGER A identifier for each unique combination of payer, plan, family code and time span. payer_plan_period
249 cdm payer_plan_period person_id Yes INTEGER A foreign key identifier to the Person covered by the payer. The demographic details of that Person are stored in the PERSON table. payer_plan_period
250 cdm payer_plan_period payer_plan_period_start_date Yes DATE The start date of the payer plan period. payer_plan_period
251 cdm payer_plan_period payer_plan_period_end_date Yes DATE The end date of the payer plan period. payer_plan_period
252 cdm payer_plan_period payer_source_value No VARCHAR(50) The source code for the payer as it appears in the source data.
253 cdm payer_plan_period plan_source_value No VARCHAR(50) The source code for the Person’s health benefit plan as it appears in the source data.
254 cdm payer_plan_period family_source_value No VARCHAR(50) The source code for the Person’s family as it appears in the source data.
255 cdm care_site care_site_id Yes INTEGER A unique identifier for each Care Site. care_site
256 cdm care_site care_site_name No VARCHAR(255) The verbatim description or name of the Care Site as in data source care_site
257 cdm care_site place_of_service_concept_id No INTEGER A foreign key that refers to a Place of Service Concept ID in the Standardized Vocabularies. care_site
258 cdm care_site location_id No INTEGER A foreign key to the geographic Location in the LOCATION table, where the detailed address information is stored. care_site
259 cdm care_site care_site_source_value No VARCHAR(50) The identifier for the Care Site in the source data, stored here for reference. care_site
260 cdm care_site place_of_service_source_value No VARCHAR(50) The source code for the Place of Service as it appears in the source data, stored here for reference. care_site
261 cdm location location_id Yes INTEGER A unique identifier for each geographic location. location
262 cdm location address_1 No VARCHAR(50) The address field 1, typically used for the street address, as it appears in the source data. location
263 cdm location address_2 No VARCHAR(50) The address field 2, typically used for additional detail such as buildings, suites, floors, as it appears in the source data. location
264 cdm location city No VARCHAR(50) The city field as it appears in the source data. location
265 cdm location state No VARCHAR(2) The state field as it appears in the source data. location
266 cdm location zip No VARCHAR(9) The zip or postal code. location
267 cdm location county No VARCHAR(20) The county. location
268 cdm location location_source_value No VARCHAR(50) The verbatim information that is used to uniquely identify the location as it appears in the source data. location
269 cdm provider provider_id Yes INTEGER A unique identifier for each Provider. provider
270 cdm provider provider_name No VARCHAR(255) A description of the Provider. provider
271 cdm provider npi No VARCHAR(20) The National Provider Identifier (NPI) of the provider. provider
272 cdm provider dea No VARCHAR(20) The Drug Enforcement Administration (DEA) number of the provider. provider
273 cdm provider specialty_concept_id No INTEGER A foreign key to a Standard Specialty Concept ID in the Standardized Vocabularies. provider
274 cdm provider care_site_id No INTEGER A foreign key to the main Care Site where the provider is practicing. provider
275 cdm provider year_of_birth No INTEGER The year of birth of the Provider. provider
276 cdm provider gender_concept_id No INTEGER The gender of the Provider. provider
277 cdm provider provider_source_value No VARCHAR(50) The identifier used for the Provider in the source data, stored here for reference. provider
278 cdm provider specialty_source_value No VARCHAR(50) The source code for the Provider specialty as it appears in the source data, stored here for reference. provider
279 cdm provider specialty_source_concept_id No INTEGER A foreign key to a Concept that refers to the code used in the source. provider
280 cdm provider gender_source_value No VARCHAR(50) The gender code for the Provider as it appears in the source data, stored here for reference. provider
281 cdm provider gender_source_concept_id No INTEGER A foreign key to a Concept that refers to the code used in the source. provider
282 cdm cdm_source cdm_source_name Yes VARCHAR(255) The full name of the source cdm_source
283 cdm cdm_source cdm_source_abbreviation No VARCHAR(25) An abbreviation of the name cdm_source
284 cdm cdm_source cdm_holder No VARCHAR(255) The name of the organization responsible for the development of the CDM instance cdm_source
285 cdm cdm_source source_description No CLOB A description of the source data origin and purpose for collection. The description may contain a summary of the period of time that is expected to be covered by this dataset. cdm_source
286 cdm cdm_source source_documentation_reference No VARCHAR(255) URL or other external reference to location of source documentation cdm_source
287 cdm cdm_source cdm_etl _reference No VARCHAR(255) URL or other external reference to location of ETL specification documentation and ETL source code cdm_source
288 cdm cdm_source source_release_date No DATE The date for which the source data are most current, such as the last day of data capture cdm_source
289 cdm cdm_source cdm_release_date No DATE The date when the CDM was instantiated cdm_source
290 cdm cdm_source cdm_version No VARCHAR(10) The version of CDM used cdm_source
291 cdm cdm_source vocabulary_version No VARCHAR(20) The version of the vocabulary used cdm_source
292 results cohort_definition cohort_definition_id Yes INTEGER A unique identifier for each Cohort. cohort_definition
293 results cohort_definition cohort_definition_name Yes VARCHAR(255) A short description of the Cohort. cohort_definition
294 results cohort_definition cohort_definition_description No VARCHAR(MAX) A complete description of the Cohort definition cohort_definition
295 results cohort_definition definition_type_concept_id Yes INTEGER Type defining what kind of Cohort Definition the record represents and how the syntax may be executed cohort_definition
296 results cohort_definition cohort_definition_syntax No VARCHAR(MAX) Syntax or code to operationalize the Cohort definition cohort_definition
297 results cohort_definition subject_concept_id Yes INTEGER A foreign key to the Concept to which defines the domain of subjects that are members of the cohort (e.g., Person, Provider, Visit). cohort_definition
298 results cohort_definition cohort_instantiation_date No DATE A date to indicate when the Cohort was instantiated in the COHORT table cohort_definition
299 cdm concept concept_id Yes INTEGER A unique identifier for each Concept across all domains. concept
300 cdm concept concept_name Yes VARCHAR(255) An unambiguous, meaningful and descriptive name for the Concept. concept
301 cdm concept domain_id Yes VARCHAR(20) A foreign key to the [DOMAIN](https://github.com/OHDSI/CommonDataModel/wiki/DOMAIN) table the Concept belongs to. concept
302 cdm concept vocabulary_id Yes VARCHAR(20) A foreign key to the [VOCABULARY](https://github.com/OHDSI/CommonDataModel/wiki/VOCABULARY) table indicating from which source the Concept has been adapted. concept
303 cdm concept concept_class_id Yes VARCHAR(20) The attribute or concept class of the Concept. Examples are 'Clinical Drug', 'Ingredient', 'Clinical Finding' etc. concept
304 cdm concept standard_concept No VARCHAR(1) This flag determines where a Concept is a Standard Concept, i.e. is used in the data, a Classification Concept, or a non-standard Source Concept. The allowables values are 'S' (Standard Concept) and 'C' (Classification Concept), otherwise the content is NULL. concept
305 cdm concept concept_code Yes VARCHAR(50) The concept code represents the identifier of the Concept in the source vocabulary, such as SNOMED-CT concept IDs, RxNorm RXCUIs etc. Note that concept codes are not unique across vocabularies. concept
306 cdm concept valid_start_date Yes DATE The date when the Concept was first recorded. The default value is 1-Jan-1970, meaning, the Concept has no (known) date of inception. concept
307 cdm concept valid_end_date Yes DATE The date when the Concept became invalid because it was deleted or superseded (updated) by a new concept. The default value is 31-Dec-2099, meaning, the Concept is valid until it becomes deprecated. concept
308 cdm concept invalid_reason No VARCHAR(1) Reason the Concept was invalidated. Possible values are D (deleted), U (replaced with an update) or NULL when valid_end_date has the default value. concept
309 cdm concept_ancestor ancestor_concept_id Yes INTEGER A foreign key to the concept in the concept table for the higher-level concept that forms the ancestor in the relationship. concept_ancestor
310 cdm concept_ancestor descendant_concept_id Yes INTEGER A foreign key to the concept in the concept table for the lower-level concept that forms the descendant in the relationship. concept_ancestor
311 cdm concept_ancestor min_levels_of_separation Yes INTEGER The minimum separation in number of levels of hierarchy between ancestor and descendant concepts. This is an attribute that is used to simplify hierarchic analysis. concept_ancestor
312 cdm concept_ancestor max_levels_of_separation Yes INTEGER The maximum separation in number of levels of hierarchy between ancestor and descendant concepts. This is an attribute that is used to simplify hierarchic analysis. concept_ancestor
313 cdm concept_class concept_class_id Yes VARCHAR(20) A unique key for each class. concept_class
314 cdm concept_class concept_class_name Yes VARCHAR(255) The name describing the Concept Class, e.g. "Clinical Finding", "Ingredient", etc. concept_class
315 cdm concept_class concept_class_concept_id Yes INTEGER A foreign key that refers to an identifier in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table for the unique Concept Class the record belongs to. concept_class
316 cdm concept_relationship concept_id_1 Yes INTEGER A foreign key to a Concept in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table associated with the relationship. Relationships are directional, and this field represents the source concept designation. concept_relationship
317 cdm concept_relationship concept_id_2 Yes INTEGER A foreign key to a Concept in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table associated with the relationship. Relationships are directional, and this field represents the destination concept designation. concept_relationship
318 cdm concept_relationship relationship_id Yes VARCHAR(20) A unique identifier to the type or nature of the Relationship as defined in the [RELATIONSHIP](https://github.com/OHDSI/CommonDataModel/wiki/RELATIONSHIP) table. concept_relationship
319 cdm concept_relationship valid_start_date Yes DATE The date when the instance of the Concept Relationship is first recorded. concept_relationship
320 cdm concept_relationship valid_end_date Yes DATE The date when the Concept Relationship became invalid because it was deleted or superseded (updated) by a new relationship. Default value is 31-Dec-2099. concept_relationship
321 cdm concept_relationship invalid_reason No VARCHAR(1) Reason the relationship was invalidated. Possible values are 'D' (deleted), 'U' (replaced with an update) or NULL when valid_end_date has the default value. concept_relationship
322 cdm concept_synonym concept_id Yes INTEGER A foreign key to the Concept in the CONCEPT table. concept_synonym
323 cdm concept_synonym concept_synonym_name Yes VARCHAR(1000) The alternative name for the Concept. concept_synonym
324 cdm concept_synonym language_concept_id Yes INTEGER A foreign key to a Concept representing the language. concept_synonym
325 cdm domain domain_id Yes VARCHAR(20) A unique key for each domain. domain
326 cdm domain domain_name Yes VARCHAR(255) The name describing the Domain, e.g. "Condition", "Procedure", "Measurement" etc. domain
327 cdm domain domain_concept_id Yes INTEGER A foreign key that refers to an identifier in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table for the unique Domain Concept the Domain record belongs to. domain
328 cdm drug_strength drug_concept_id Yes INTEGER A foreign key to the Concept in the CONCEPT table representing the identifier for Branded Drug or Clinical Drug Concept. drug_strength
329 cdm drug_strength ingredient_concept_id Yes INTEGER A foreign key to the Concept in the CONCEPT table, representing the identifier for drug Ingredient Concept contained within the drug product. drug_strength
330 cdm drug_strength amount_value No FLOAT The numeric value associated with the amount of active ingredient contained within the product. drug_strength
331 cdm drug_strength amount_unit_concept_id No INTEGER A foreign key to the Concept in the CONCEPT table representing the identifier for the Unit for the absolute amount of active ingredient. drug_strength
332 cdm drug_strength numerator_value No FLOAT The numeric value associated with the concentration of the active ingredient contained in the product drug_strength
333 cdm drug_strength numerator_unit_concept_id No INTEGER A foreign key to the Concept in the CONCEPT table representing the identifier for the numerator Unit for the concentration of active ingredient. drug_strength
334 cdm drug_strength denominator_value No FLOAT The amount of total liquid (or other divisible product, such as ointment, gel, spray, etc.). drug_strength
335 cdm drug_strength denominator_unit_concept_id No INTEGER A foreign key to the Concept in the CONCEPT table representing the identifier for the denominator Unit for the concentration of active ingredient. drug_strength
336 cdm drug_strength box_size No INTEGER The number of units of Clinical of Branded Drug, or Quantified Clinical or Branded Drug contained in a box as dispensed to the patient drug_strength
337 cdm drug_strength valid_start_date Yes DATE The date when the Concept was first recorded. The default value is 1-Jan-1970. drug_strength
338 cdm drug_strength valid_end_date Yes DATE The date when the concept became invalid because it was deleted or superseded (updated) by a new Concept. The default value is 31-Dec-2099. drug_strength
339 cdm drug_strength invalid_reason No VARCHAR(1) Reason the concept was invalidated. Possible values are 'D' (deleted), 'U' (replaced with an update) or NULL when valid_end_date has the default value. drug_strength
340 cdm relationship relationship_id Yes VARCHAR(20) The type of relationship captured by the relationship record. relationship
341 cdm relationship relationship_name Yes VARCHAR(255) The text that describes the relationship type. relationship
342 cdm relationship is_hierarchical Yes VARCHAR(1) Defines whether a relationship defines concepts into classes or hierarchies. Values are 1 for hierarchical relationship or 0 if not. relationship
343 cdm relationship defines_ancestry Yes VARCHAR(1) Defines whether a hierarchical relationship contributes to the concept_ancestor table. These are subsets of the hierarchical relationships. Valid values are 1 or 0. relationship
344 cdm relationship reverse_relationship_id Yes VARCHAR(20) The identifier for the relationship used to define the reverse relationship between two concepts. relationship
345 cdm relationship relationship_concept_id Yes INTEGER A foreign key that refers to an identifier in the CONCEPT table for the unique relationship concept. relationship
346 cdm source_to_concept_map source_code Yes VARCHAR(50) The source code being translated into a Standard Concept. source_to_concept_map
347 cdm source_to_concept_map source_concept_id Yes INTEGER A foreign key to the Source Concept that is being translated into a Standard Concept. source_to_concept_map
348 cdm source_to_concept_map source_vocabulary_id Yes VARCHAR(20) A foreign key to the VOCABULARY table defining the vocabulary of the source code that is being translated to a Standard Concept. source_to_concept_map
349 cdm source_to_concept_map source_code_description No VARCHAR(255) An optional description for the source code. This is included as a convenience to compare the description of the source code to the name of the concept. source_to_concept_map
350 cdm source_to_concept_map target_concept_id Yes INTEGER A foreign key to the target Concept to which the source code is being mapped. source_to_concept_map
351 cdm source_to_concept_map target_vocabulary_id Yes VARCHAR(20) A foreign key to the VOCABULARY table defining the vocabulary of the target Concept. source_to_concept_map
352 cdm source_to_concept_map valid_start_date Yes DATE The date when the mapping instance was first recorded. source_to_concept_map
353 cdm source_to_concept_map valid_end_date Yes DATE The date when the mapping instance became invalid because it was deleted or superseded (updated) by a new relationship. Default value is 31-Dec-2099. source_to_concept_map
354 cdm source_to_concept_map invalid_reason No VARCHAR(1) Reason the mapping instance was invalidated. Possible values are D (deleted), U (replaced with an update) or NULL when valid_end_date has the default value. source_to_concept_map
355 cdm vocabulary vocabulary_id Yes VARCHAR(20) A unique identifier for each Vocabulary, such as ICD9CM, SNOMED, Visit. vocabulary
356 cdm vocabulary vocabulary_name Yes VARCHAR(255) The name describing the vocabulary, for example "International Classification of Diseases, Ninth Revision, Clinical Modification, Volume 1 and 2 (NCHS)" etc. vocabulary
357 cdm vocabulary vocabulary_reference Yes VARCHAR(255) External reference to documentation or available download of the about the vocabulary. vocabulary
358 cdm vocabulary vocabulary_version Yes VARCHAR(255) Version of the Vocabulary as indicated in the source. vocabulary
359 cdm vocabulary vocabulary_concept_id Yes INTEGER A foreign key that refers to a standard concept identifier in the CONCEPT table for the Vocabulary the VOCABULARY record belongs to. vocabulary

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schema,table,field,required,type,description,table,
cdm,condition_occurrence,condition_occurrence_id,Yes,INTEGER,A unique identifier for each Condition Occurrence event.,condition_occurrence,
cdm,condition_occurrence,person_id,Yes,INTEGER,A foreign key identifier to the Person who is experiencing the condition. The demographic details of that Person are stored in the PERSON table.,condition_occurrence,
cdm,condition_occurrence,condition_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Condition Concept identifier in the Standardized Vocabularies.,condition_occurrence,
cdm,condition_occurrence,condition_start_date,Yes,DATE,The date when the instance of the Condition is recorded.,condition_occurrence,
cdm,condition_occurrence,condition_start_datetime,No,DATETIME,The date and time when the instance of the Condition is recorded.,condition_occurrence,
cdm,condition_occurrence,condition_end_date,No,DATE,The date when the instance of the Condition is considered to have ended.,condition_occurrence,
cdm,condition_occurrence,condition_end_datetime,No,DATE,The date when the instance of the Condition is considered to have ended.,condition_occurrence,
cdm,condition_occurrence,condition_type_concept_id,Yes,INTEGER,"A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the source data from which the condition was recorded, the level of standardization, and the type of occurrence.",condition_occurrence,
cdm,condition_occurrence,stop_reason,No,VARCHAR(20),"The reason that the condition was no longer present, as indicated in the source data.",condition_occurrence,
cdm,condition_occurrence,provider_id,No,INTEGER,A foreign key to the Provider in the PROVIDER table who was responsible for capturing (diagnosing) the Condition.,condition_occurrence,
cdm,condition_occurrence,visit_occurrence_id,No,INTEGER,A foreign key to the visit in the VISIT_OCCURRENCE table during which the Condition was determined (diagnosed).,condition_occurrence,
cdm,condition_occurrence,visit_detail_id,No,INTEGER,A foreign key to the visit in the VISIT_DETAIL table during which the Condition was determined (diagnosed).,condition_occurrence,
cdm,condition_occurrence,condition_source_value,No,VARCHAR(50),The source code for the condition as it appears in the source data. This code is mapped to a standard condition concept in the Standardized Vocabularies and the original code is stored here for reference.,condition_occurrence,
cdm,condition_occurrence,condition_source_concept_id,No,INTEGER,A foreign key to a Condition Concept that refers to the code used in the source.,condition_occurrence,
cdm,condition_occurrence,condition_status_source_value,No,VARCHAR(50),The source code for the condition status as it appears in the source data.,condition_occurrence,
cdm,condition_occurrence,condition_status_concept_id,No,INTEGER,A foreign key to the predefined Concept in the Standard Vocabulary reflecting the condition status,condition_occurrence,
cdm,death,person_id,Yes,INTEGER,A foreign key identifier to the deceased person. The demographic details of that person are stored in the person table.,death,
cdm,death,death_date,Yes,DATE,"The date the person was deceased. If the precise date including day or month is not known or not allowed, December is used as the default month, and the last day of the month the default day.",death,
cdm,death,death_datetime,No,DATETIME,"The date and time the person was deceased. If the precise date including day or month is not known or not allowed, December is used as the default month, and the last day of the month the default day.",death,
cdm,death,death_type_concept_id,Yes,INTEGER,A foreign key referring to the predefined concept identifier in the Standardized Vocabularies reflecting how the death was represented in the source data.,death,
cdm,death,cause_concept_id,No,INTEGER,A foreign key referring to a standard concept identifier in the Standardized Vocabularies for conditions.,death,
cdm,death,cause_source_value,No,VARCHAR(50),"The source code for the cause of death as it appears in the source data. This code is mapped to a standard concept in the Standardized Vocabularies and the original code is, stored here for reference.",death,
cdm,death,cause_source_concept_id,No,INTEGER,"A foreign key to the concept that refers to the code used in the source. Note, this variable name is abbreviated to ensure it will be allowable across database platforms.",death,
cdm,device_exposure,device_exposure_id,Yes,INTEGER,A system-generated unique identifier for each Device Exposure.,device_exposure,
cdm,device_exposure,person_id,Yes,INTEGER,A foreign key identifier to the Person who is subjected to the Device. The demographic details of that person are stored in the Person table.,device_exposure,
cdm,device_exposure,device_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Device concept.,device_exposure,
cdm,device_exposure,device_exposure_start_date,Yes,DATE,The date the Device or supply was applied or used.,device_exposure,
cdm,device_exposure,device_exposure_start_datetime,No,DATETIME,The date and time the Device or supply was applied or used.,device_exposure,
cdm,device_exposure,device_exposure_end_date,No,DATE,The date the Device or supply was removed from use.,device_exposure,
cdm,device_exposure,device_exposure_end_datetime,No,DATETIME,The date and time the Device or supply was removed from use.,device_exposure,
cdm,device_exposure,device_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of Device Exposure recorded. It indicates how the Device Exposure was represented in the source data.,device_exposure,
cdm,device_exposure,unique_device_id,No,VARCHAR(50),A UDI or equivalent identifying the instance of the Device used in the Person.,device_exposure,
cdm,device_exposure,quantity,No,INTEGER,The number of individual Devices used for the exposure.,device_exposure,
cdm,device_exposure,provider_id,No,INTEGER,A foreign key to the provider in the PROVIDER table who initiated of administered the Device.,device_exposure,
cdm,device_exposure,visit_occurrence_id,No,INTEGER,A foreign key to the visit in the VISIT_OCCURRENCE table during which the device was used.,device_exposure,
cdm,device_exposure,visit_detail_id,No,INTEGER,A foreign key to the visit detail in the VISIT_DETAIL table during which the Drug Exposure was initiated.,device_exposure,
cdm,device_exposure,device_source_value,No,VARCHAR(50),The source code for the Device as it appears in the source data. This code is mapped to a standard Device Concept in the Standardized Vocabularies and the original code is stored here for reference.,device_exposure,
cdm,device_exposure,device_source_ concept_id,No,INTEGER,A foreign key to a Device Concept that refers to the code used in the source.,device_exposure,
cdm,drug_exposure,drug_exposure_id,Yes,INTEGER,A system-generated unique identifier for each Drug utilization event.,drug_exposure,
cdm,drug_exposure,person_id,Yes,INTEGER,A foreign key identifier to the person who is subjected to the Drug. The demographic details of that person are stored in the person table.,drug_exposure,
cdm,drug_exposure,drug_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Drug concept.,drug_exposure,
cdm,drug_exposure,drug_exposure_start_date,Yes,DATE,"The start date for the current instance of Drug utilization. Valid entries include a start date of a prescription, the date a prescription was filled, or the date on which a Drug administration procedure was recorded.",drug_exposure,
cdm,drug_exposure,drug_exposure_start_datetime,No,DATETIME,"The start date and time for the current instance of Drug utilization. Valid entries include a start date of a prescription, the date a prescription was filled, or the date on which a Drug administration procedure was recorded.",drug_exposure,
cdm,drug_exposure,drug_exposure_end_date,Yes,DATE,The end date for the current instance of Drug utilization. It is not available from all sources.,drug_exposure,
cdm,drug_exposure,drug_exposure_end_datetime,No,DATETIME,The end date and time for the current instance of Drug utilization. It is not available from all sources.,drug_exposure,
cdm,drug_exposure,verbatim_end_date,No,DATE,The known end date of a drug_exposure as provided by the source,drug_exposure,
cdm,drug_exposure,drug_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of Drug Exposure recorded. It indicates how the Drug Exposure was represented in the source data.,drug_exposure,
cdm,drug_exposure,stop_reason,No,VARCHAR(20),"The reason the Drug was stopped. Reasons include regimen completed, changed, removed, etc.",drug_exposure,
cdm,drug_exposure,refills,No,INTEGER,"The number of refills after the initial prescription. The initial prescription is not counted, values start with 0.",drug_exposure,
cdm,drug_exposure,quantity,No,FLOAT,The quantity of drug as recorded in the original prescription or dispensing record.,drug_exposure,
cdm,drug_exposure,days_supply,No,INTEGER,The number of days of supply of the medication as recorded in the original prescription or dispensing record.,drug_exposure,
cdm,drug_exposure,sig,No,VARCHAR(MAX),"The directions (""signetur"") on the Drug prescription as recorded in the original prescription (and printed on the container) or dispensing record.",drug_exposure,
cdm,drug_exposure,route_concept_id,No,INTEGER,A foreign key to a predefined concept in the Standardized Vocabularies reflecting the route of administration.,drug_exposure,
cdm,drug_exposure,lot_number,No,VARCHAR(50),An identifier assigned to a particular quantity or lot of Drug product from the manufacturer.,drug_exposure,
cdm,drug_exposure,provider_id,No,INTEGER,A foreign key to the provider in the PROVIDER table who initiated (prescribed or administered) the Drug Exposure.,drug_exposure,
cdm,drug_exposure,visit_occurrence_id,No,INTEGER,A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Drug Exposure was initiated.,drug_exposure,
cdm,drug_exposure,visit_detail_id,No,INTEGER,A foreign key to the Visit Detail in the VISIT_DETAIL table during which the Drug Exposure was initiated.,drug_exposure,
cdm,drug_exposure,drug_source_value,No,VARCHAR(50),"The source code for the Drug as it appears in the source data. This code is mapped to a Standard Drug concept in the Standardized Vocabularies and the original code is, stored here for reference.",drug_exposure,
cdm,drug_exposure,drug_source_concept_id,No,INTEGER,A foreign key to a Drug Concept that refers to the code used in the source.,drug_exposure,
cdm,drug_exposure,route_source_value,No,VARCHAR(50),The information about the route of administration as detailed in the source.,drug_exposure,
cdm,drug_exposure,dose_unit_source_value,No,VARCHAR(50),The information about the dose unit as detailed in the source.,drug_exposure,
cdm,fact_relationship,domain_concept_id_1,Yes,INTEGER,"The concept representing the domain of fact one, from which the corresponding table can be inferred.",fact_relationship,
cdm,fact_relationship,fact_id_1,Yes,INTEGER,The unique identifier in the table corresponding to the domain of fact one.,fact_relationship,
cdm,fact_relationship,domain_concept_id_2,Yes,INTEGER,"The concept representing the domain of fact two, from which the corresponding table can be inferred.",fact_relationship,
cdm,fact_relationship,fact_id_2,Yes,INTEGER,The unique identifier in the table corresponding to the domain of fact two.,fact_relationship,
cdm,fact_relationship,relationship_concept_id,Yes,INTEGER,A foreign key to a Standard Concept ID of relationship in the Standardized Vocabularies.,fact_relationship,
cdm,measurement,measurement_id,Yes,INTEGER,A unique identifier for each Measurement.,measurement,
cdm,measurement,person_id,Yes,INTEGER,A foreign key identifier to the Person about whom the measurement was recorded. The demographic details of that Person are stored in the PERSON table.,measurement,
cdm,measurement,measurement_concept_id,Yes,INTEGER,A foreign key to the standard measurement concept identifier in the Standardized Vocabularies.,measurement,
cdm,measurement,measurement_date,Yes,DATE,The date of the Measurement.,measurement,
cdm,measurement,measurement_datetime,No,DATETIME,"The date and time of the Measurement. Some database systems don't have a datatype of time. To accomodate all temporal analyses, datatype datetime can be used (combining measurement_date and measurement_time [forum discussion](http://forums.ohdsi.org/t/date-time-and-datetime-problem-and-the-world-of-hours-and-1day/314))",measurement,
cdm,measurement,measurement_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the provenance from where the Measurement record was recorded.,measurement,
cdm,measurement,operator_concept_id,No,INTEGER,"A foreign key identifier to the predefined Concept in the Standardized Vocabularies reflecting the mathematical operator that is applied to the value_as_number. Operators are <, <=, =, >=, >.",measurement,
cdm,measurement,value_as_number,No,FLOAT,A Measurement result where the result is expressed as a numeric value.,measurement,
cdm,measurement,value_as_concept_id,No,INTEGER,"A foreign key to a Measurement result represented as a Concept from the Standardized Vocabularies (e.g., positive/negative, present/absent, low/high, etc.).",measurement,
cdm,measurement,unit_concept_id,No,INTEGER,A foreign key to a Standard Concept ID of Measurement Units in the Standardized Vocabularies.,measurement,
cdm,measurement,range_low,No,FLOAT,The lower limit of the normal range of the Measurement result. The lower range is assumed to be of the same unit of measure as the Measurement value.,measurement,
cdm,measurement,range_high,No,FLOAT,The upper limit of the normal range of the Measurement. The upper range is assumed to be of the same unit of measure as the Measurement value.,measurement,
cdm,measurement,provider_id,No,INTEGER,A foreign key to the provider in the PROVIDER table who was responsible for initiating or obtaining the measurement.,measurement,
cdm,measurement,visit_occurrence_id,No,INTEGER,A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Measurement was recorded.,measurement,
cdm,measurement,visit_detail_id,No,INTEGER,A foreign key to the Visit Detail in the VISIT_DETAIL table during which the Measurement was recorded.,measurement,
cdm,measurement,measurement_source_value,No,VARCHAR(50),The Measurement name as it appears in the source data. This code is mapped to a Standard Concept in the Standardized Vocabularies and the original code is stored here for reference.,measurement,
cdm,measurement,measurement_source_concept_id,No,INTEGER,A foreign key to a Concept in the Standard Vocabularies that refers to the code used in the source.,measurement,
cdm,measurement,unit_source_value,No,VARCHAR(50),The source code for the unit as it appears in the source data. This code is mapped to a standard unit concept in the Standardized Vocabularies and the original code is stored here for reference.,measurement,
cdm,measurement,value_source_value,No,VARCHAR(50),The source value associated with the content of the value_as_number or value_as_concept_id as stored in the source data.,measurement,
cdm,note,note_id,Yes,INTEGER,A unique identifier for each note.,note,
cdm,note,person_id,Yes,INTEGER,A foreign key identifier to the Person about whom the Note was recorded. The demographic details of that Person are stored in the PERSON table.,note,
cdm,note,note_date,Yes,DATE,The date the note was recorded.,note,
cdm,note,note_datetime,No,DATETIME,The date and time the note was recorded.,note,
cdm,note,note_type_concept_id,Yes,INTEGER,"A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the type, origin or provenance of the Note.",note,
cdm,note,note_class_concept_id,Yes,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the HL7 LOINC Document Type Vocabulary classification of the note.,note,
cdm,note,note_title,No,VARCHAR(250),The title of the Note as it appears in the source.,note,
cdm,note,note_text,Yes,VARCHAR(MAX),The content of the Note.,note,
cdm,note,encoding_concept_id,Yes,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the note character encoding type,note,
cdm,note,language_concept_id,Yes,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the language of the note,note,
cdm,note,provider_id,No,INTEGER,A foreign key to the Provider in the PROVIDER table who took the Note.,note,
cdm,note,visit_occurrence_id,No,INTEGER,A foreign key to the Visit in the VISIT_OCCURRENCE table when the Note was taken.,note,
cdm,note,visit_detail_id,No,INTEGER,A foreign key to the Visit in the VISIT_DETAIL table when the Note was taken.,note,
cdm,note,note_source_value,No,VARCHAR(50),The source value associated with the origin of the Note,note,
cdm,note_nlp,note_nlp_id,Yes,INTEGER,A unique identifier for each term extracted from a note.,note_nlp,
cdm,note_nlp,note_id,Yes,INTEGER,A foreign key to the Note table note the term was extracted from.,note_nlp,
cdm,note_nlp,section_concept_id,No,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies representing the section of the extracted term.,note_nlp,
cdm,note_nlp,snippet,No,VARCHAR(250),A small window of text surrounding the term.,note_nlp,
cdm,note_nlp,offset,No,VARCHAR(50),Character offset of the extracted term in the input note.,note_nlp,
cdm,note_nlp,lexical_variant,Yes,VARCHAR(250),Raw text extracted from the NLP tool.,note_nlp,
cdm,note_nlp,note_nlp_concept_id,No,INTEGER,A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the normalized concept for the extracted term. Domain of the term is represented as part of the Concept table.,note_nlp,
cdm,note_nlp,note_nlp_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code in the source vocabulary used by the NLP system,note_nlp,
cdm,note_nlp,nlp_system,No,VARCHAR(250),Name and version of the NLP system that extracted the term.Useful for data provenance.,note_nlp,
cdm,note_nlp,nlp_date,Yes,DATE,The date of the note processing.Useful for data provenance.,note_nlp,
cdm,note_nlp,nlp_date_time,No,DATETIME,The date and time of the note processing. Useful for data provenance.,note_nlp,
cdm,note_nlp,term_exists,No,VARCHAR(1),A summary modifier that signifies presence or absence of the term for a given patient. Useful for quick querying. *,note_nlp,
cdm,note_nlp,term_temporal,No,VARCHAR(50),An optional time modifier associated with the extracted term. (for now <20>past<73> or <20>present<6E> only). Standardize it later.,note_nlp,
cdm,note_nlp,term_modifiers,No,VARCHAR(2000),"A compact description of all the modifiers of the specific term extracted by the NLP system. (e.g. <20>son has rash<73> ? <20>negated=no,subject=family, certainty=undef,conditional=false,general=false<73>).",note_nlp,
cdm,observation,observation_id,Yes,INTEGER,A unique identifier for each observation.,observation,
cdm,observation,person_id,Yes,INTEGER,A foreign key identifier to the Person about whom the observation was recorded. The demographic details of that Person are stored in the PERSON table.,observation,
cdm,observation,observation_concept_id,Yes,INTEGER,A foreign key to the standard observation concept identifier in the Standardized Vocabularies.,observation,
cdm,observation,observation_date,Yes,DATE,The date of the observation.,observation,
cdm,observation,observation_datetime,No,DATETIME,The date and time of the observation.,observation,
cdm,observation,observation_type_concept_id,Yes,INTEGER,A foreign key to the predefined concept identifier in the Standardized Vocabularies reflecting the type of the observation.,observation,
cdm,observation,value_as_number,No,FLOAT,The observation result stored as a number. This is applicable to observations where the result is expressed as a numeric value.,observation,
cdm,observation,value_as_string,No,VARCHAR(60),The observation result stored as a string. This is applicable to observations where the result is expressed as verbatim text.,observation,
cdm,observation,value_as_concept_id,No,INTEGER,"A foreign key to an observation result stored as a Concept ID. This is applicable to observations where the result can be expressed as a Standard Concept from the Standardized Vocabularies (e.g., positive/negative, present/absent, low/high, etc.).",observation,
cdm,observation,qualifier_concept_id,No,INTEGER,"A foreign key to a Standard Concept ID for a qualifier (e.g., severity of drug-drug interaction alert)",observation,
cdm,observation,unit_concept_id,No,INTEGER,A foreign key to a Standard Concept ID of measurement units in the Standardized Vocabularies.,observation,
cdm,observation,provider_id,No,INTEGER,A foreign key to the provider in the PROVIDER table who was responsible for making the observation.,observation,
cdm,observation,visit_occurrence_id,No,INTEGER,A foreign key to the visit in the VISIT_OCCURRENCE table during which the observation was recorded.,observation,
cdm,observation,visit_detail_id,No,INTEGER,A foreign key to the visit in the VISIT_DETAIL table during which the observation was recorded.,observation,
cdm,observation,observation_source_value,No,VARCHAR(50),"The observation code as it appears in the source data. This code is mapped to a Standard Concept in the Standardized Vocabularies and the original code is, stored here for reference.",observation,
cdm,observation,observation_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code used in the source.,observation,
cdm,observation,unit_source_value,No,VARCHAR(50),"The source code for the unit as it appears in the source data. This code is mapped to a standard unit concept in the Standardized Vocabularies and the original code is, stored here for reference.",observation,
cdm,observation,qualifier_source_value,No,VARCHAR(50),The source value associated with a qualifier to characterize the observation,observation,
cdm,observation_period,observation_period_id,Yes,INTEGER,A unique identifier for each observation period.,observation_period,
cdm,observation_period,person_id,Yes,INTEGER,A foreign key identifier to the person for whom the observation period is defined. The demographic details of that person are stored in the person table.,observation_period,
cdm,observation_period,observation_period_start_date,Yes,DATE,The start date of the observation period for which data are available from the data source.,observation_period,
cdm,observation_period,observation_period_end_date,Yes,DATE,The end date of the observation period for which data are available from the data source.,observation_period,
cdm,observation_period,period_type_concept_id,Yes,INTEGER,A foreign key identifier to the predefined concept in the Standardized Vocabularies reflecting the source of the observation period information,observation_period,
cdm,person,person_id,Yes,INTEGER,A unique identifier for each person.,person,
cdm,person,gender_concept_id,Yes,INTEGER,A foreign key that refers to an identifier in the CONCEPT table for the unique gender of the person.,person,
cdm,person,year_of_birth,Yes,INTEGER,"The year of birth of the person. For data sources with date of birth, the year is extracted. For data sources where the year of birth is not available, the approximate year of birth is derived based on any age group categorization available.",person,
cdm,person,month_of_birth,No,INTEGER,"The month of birth of the person. For data sources that provide the precise date of birth, the month is extracted and stored in this field.",person,
cdm,person,day_of_birth,No,INTEGER,"The day of the month of birth of the person. For data sources that provide the precise date of birth, the day is extracted and stored in this field.",person,
cdm,person,birth_datetime,No,DATETIME,The date and time of birth of the person.,person,
cdm,person,race_concept_id,Yes,INTEGER,A foreign key that refers to an identifier in the CONCEPT table for the unique race of the person.,person,
cdm,person,ethnicity_concept_id,Yes,INTEGER,A foreign key that refers to the standard concept identifier in the Standardized Vocabularies for the ethnicity of the person.,person,
cdm,person,location_id,No,INTEGER,"A foreign key to the place of residency for the person in the location table, where the detailed address information is stored.",person,
cdm,person,provider_id,No,INTEGER,A foreign key to the primary care provider the person is seeing in the provider table.,person,
cdm,person,care_site_id,No,INTEGER,"A foreign key to the site of primary care in the care_site table, where the details of the care site are stored.",person,
cdm,person,person_source_value,No,VARCHAR(50),An (encrypted) key derived from the person identifier in the source data. This is necessary when a use case requires a link back to the person data at the source dataset.,person,
cdm,person,gender_source_value,No,VARCHAR(50),The source code for the gender of the person as it appears in the source data. The persons gender is mapped to a standard gender concept in the Standardized Vocabularies, the original value is stored here for reference.,person
cdm,person,gender_source_concept_id,No,INTEGER,A foreign key to the gender concept that refers to the code used in the source.,person,
cdm,person,race_source_value,No,VARCHAR(50),The source code for the race of the person as it appears in the source data. The person race is mapped to a standard race concept in the Standardized Vocabularies and the original value is stored here for reference.,person,
cdm,person,race_source_concept_id,No,INTEGER,A foreign key to the race concept that refers to the code used in the source.,person,
cdm,person,ethnicity_source_value,No,VARCHAR(50),"The source code for the ethnicity of the person as it appears in the source data. The person ethnicity is mapped to a standard ethnicity concept in the Standardized Vocabularies and the original code is, stored here for reference.",person,
cdm,person,ethnicity_source_concept_id,No,INTEGER,A foreign key to the ethnicity concept that refers to the code used in the source.,person,
cdm,procedure_occurrence,procedure_occurrence_id,Yes,INTEGER,A system-generated unique identifier for each Procedure Occurrence.,procedure_occurrence,
cdm,procedure_occurrence,person_id,Yes,INTEGER,A foreign key identifier to the Person who is subjected to the Procedure. The demographic details of that Person are stored in the PERSON table.,procedure_occurrence,
cdm,procedure_occurrence,procedure_concept_id,Yes,INTEGER,A foreign key that refers to a standard procedure Concept identifier in the Standardized Vocabularies.,procedure_occurrence,
cdm,procedure_occurrence,procedure_date,Yes,DATE,The date on which the Procedure was performed.,procedure_occurrence,
cdm,procedure_occurrence,procedure_datetime,No,DATETIME,The date and time on which the Procedure was performed.,procedure_occurrence,
cdm,procedure_occurrence,procedure_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of source data from which the procedure record is derived.,procedure_occurrence,
cdm,procedure_occurrence,modifier_concept_id,No,INTEGER,A foreign key to a Standard Concept identifier for a modifier to the Procedure (e.g. bilateral),procedure_occurrence,
cdm,procedure_occurrence,quantity,No,INTEGER,The quantity of procedures ordered or administered.,procedure_occurrence,
cdm,procedure_occurrence,provider_id,No,INTEGER,A foreign key to the provider in the PROVIDER table who was responsible for carrying out the procedure.,procedure_occurrence,
cdm,procedure_occurrence,visit_occurrence_id,No,INTEGER,A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Procedure was carried out.,procedure_occurrence,
cdm,procedure_occurrence,visit_detail_id,No,INTEGER,A foreign key to the Visit Detail in the VISIT_DETAIL table during which the Procedure was carried out.,procedure_occurrence,
cdm,procedure_occurrence,procedure_source_value,No,VARCHAR(50),"The source code for the Procedure as it appears in the source data. This code is mapped to a standard procedure Concept in the Standardized Vocabularies and the original code is, stored here for reference. Procedure source codes are typically ICD-9-Proc, CPT-4, HCPCS or OPCS-4 codes.",procedure_occurrence,
cdm,procedure_occurrence,procedure_source_concept_id,No,INTEGER,A foreign key to a Procedure Concept that refers to the code used in the source.,procedure_occurrence,
cdm,procedure_occurrence,modifier_source_value,No,VARCHAR(50),The source code for the qualifier as it appears in the source data.,procedure_occurrence,
cdm,specimen,specimen_id,Yes,INTEGER,A unique identifier for each specimen.,specimen,
cdm,specimen,person_id,Yes,INTEGER,A foreign key identifier to the Person for whom the Specimen is recorded.,specimen,
cdm,specimen,specimen_concept_id,Yes,INTEGER,A foreign key referring to a Standard Concept identifier in the Standardized Vocabularies for the Specimen.,specimen,
cdm,specimen,specimen_type_concept_id,Yes,INTEGER,A foreign key referring to the Concept identifier in the Standardized Vocabularies reflecting the system of record from which the Specimen was represented in the source data.,specimen,
cdm,specimen,specimen_date,Yes,DATE,The date the specimen was obtained from the Person.,specimen,
cdm,specimen,specimen_datetime,No,DATETIME,The date and time on the date when the Specimen was obtained from the person.,specimen,
cdm,specimen,quantity,No,FLOAT,The amount of specimen collection from the person during the sampling procedure.,specimen,
cdm,specimen,unit_concept_id,No,INTEGER,A foreign key to a Standard Concept identifier for the Unit associated with the numeric quantity of the Specimen collection.,specimen,
cdm,specimen,anatomic_site_concept_id,No,INTEGER,A foreign key to a Standard Concept identifier for the anatomic location of specimen collection.,specimen,
cdm,specimen,disease_status_concept_id,No,INTEGER,A foreign key to a Standard Concept identifier for the Disease Status of specimen collection.,specimen,
cdm,specimen,specimen_source_id,No,VARCHAR(50),The Specimen identifier as it appears in the source data.,specimen,
cdm,specimen,specimen_source_value,No,VARCHAR(50),"The Specimen value as it appears in the source data. This value is mapped to a Standard Concept in the Standardized Vocabularies and the original code is, stored here for reference.",specimen,
cdm,specimen,unit_source_value,No,VARCHAR(50),The information about the Unit as detailed in the source.,specimen,
cdm,specimen,anatomic_site_source_value,No,VARCHAR(50),The information about the anatomic site as detailed in the source.,specimen,
cdm,specimen,disease_status_source_value,No,VARCHAR(50),The information about the disease status as detailed in the source.,specimen,
cdm,visit_detail,visit_detail_id,Yes,INTEGER,A unique identifier for each Person's visit or encounter at a healthcare provider.,visit_detail,
cdm,visit_detail,person_id,Yes,INTEGER,A foreign key identifier to the Person for whom the visit is recorded. The demographic details of that Person are stored in the PERSON table.,visit_detail,
cdm,visit_detail,visit_concept_id,Yes,INTEGER,A foreign key that refers to a visit Concept identifier in the Standardized Vocabularies.,visit_detail,
cdm,visit_detail,visit_start_date,Yes,DATE,The start date of the visit.,visit_detail,
cdm,visit_detail,visit_start_datetime,No,DATETIME,The date and time of the visit started.,visit_detail,
cdm,visit_detail,visit_end_date,Yes,DATE,The end date of the visit. If this is a one-day visit the end date should match the start date.,visit_detail,
cdm,visit_detail,visit_end_datetime,No,DATETIME,The date and time of the visit end.,visit_detail,
cdm,visit_detail,visit_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of source data from which the visit record is derived.,visit_detail,
cdm,visit_detail,provider_id,No,INTEGER,A foreign key to the provider in the provider table who was associated with the visit.,visit_detail,
cdm,visit_detail,care_site_id,No,INTEGER,A foreign key to the care site in the care site table that was visited.,visit_detail,
cdm,visit_detail,visit_source_value,No,STRING(50),The source code for the visit as it appears in the source data.,visit_detail,
cdm,visit_detail,visit_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code used in the source.,visit_detail,
cdm,visit_detail,admitting_source_value,Varchar(50),NO,The source code for the admitting source as it appears in the source data.,visit_detail,
cdm,visit_detail,admitting_source_concept_id,Integer,NO,A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the admitting source for a visit.,visit_detail,
cdm,visit_detail,discharge_to_source_value,Varchar(50),NO,The source code for the discharge disposition as it appears in the source data.,visit_detail,
cdm,visit_detail,discharge_to_concept_id,Integer,NO,A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the discharge disposition for a visit.,visit_detail,
cdm,visit_detail,preceding_visit_detail_id,Integer,NO,A foreign key to the VISIT_DETAIL table of the visit immediately preceding this visit,visit_detail,
cdm,visit_detail,visit_detail_parent_id,Integer,NO,A foreign key to the VISIT_DETAIL table record to represent the immediate parent visit-detail record.,visit_detail,
cdm,visit_detail,visit_occurrence_id,Integer,YES,"A foreign key that refers to the record in the VISIT_OCCURRENCE table. This is a required field, because for every visit_detail is a child of visit_occurrence and cannot exist without a corresponding parent record in visit_occurrence.",visit_detail,
cdm,visit_occurrence,visit_occurrence_id,Yes,INTEGER,A unique identifier for each Person's visit or encounter at a healthcare provider.,visit_occurrence,
cdm,visit_occurrence,person_id,Yes,INTEGER,A foreign key identifier to the Person for whom the visit is recorded. The demographic details of that Person are stored in the PERSON table.,visit_occurrence,
cdm,visit_occurrence,visit_concept_id,Yes,INTEGER,A foreign key that refers to a visit Concept identifier in the Standardized Vocabularies.,visit_occurrence,
cdm,visit_occurrence,visit_start_date,Yes,DATE,The start date of the visit.,visit_occurrence,
cdm,visit_occurrence,visit_start_datetime,No,DATETIME,The date and time of the visit started.,visit_occurrence,
cdm,visit_occurrence,visit_end_date,Yes,DATE,The end date of the visit. If this is a one-day visit the end date should match the start date.,visit_occurrence,
cdm,visit_occurrence,visit_end_datetime,No,DATETIME,The date and time of the visit end.,visit_occurrence,
cdm,visit_occurrence,visit_type_concept_id,Yes,INTEGER,A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of source data from which the visit record is derived.,visit_occurrence,
cdm,visit_occurrence,provider_id,No,INTEGER,A foreign key to the provider in the provider table who was associated with the visit.,visit_occurrence,
cdm,visit_occurrence,care_site_id,No,INTEGER,A foreign key to the care site in the care site table that was visited.,visit_occurrence,
cdm,visit_occurrence,visit_source_value,No,VARCHAR(50),The source code for the visit as it appears in the source data.,visit_occurrence,
cdm,visit_occurrence,visit_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code used in the source.,visit_occurrence,
cdm,visit_occurrence,admitting_source_concept_id,integer,NO,A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the admitting source for a visit.,visit_occurrence,
cdm,visit_occurrence,admitting_source_value,varchar(50),NO,The source code for the admitting source as it appears in the source data.,visit_occurrence,
cdm,visit_occurrence,discharge_to_concept_id,integer,NO,A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the discharge disposition for a visit.,visit_occurrence,
cdm,visit_occurrence,discharge_to_source_value,varchar(50),NO,The source code for the discharge disposition as it appears in the source data.,visit_occurrence,
cdm,visit_occurrence,preceding_visit_occurrence_id,integer,NO,A foreign key to the VISIT_OCCURRENCE table of the visit immediately preceding this visit,visit_occurrence,
results,cohort,cohort_definition_id,Yes,INTEGER,A foreign key to a record in the COHORT_DEFINITION table containing relevant Cohort Definition information.,cohort,
results,cohort,subject_id,Yes,INTEGER,"A foreign key to the subject in the cohort. These could be referring to records in the PERSON, PROVIDER, VISIT_OCCURRENCE table.",cohort,
results,cohort,cohort_start_date,Yes,DATE,"The date when the Cohort Definition criteria for the Person, Provider or Visit first match.",cohort,
results,cohort,cohort_end_date,Yes,DATE,"The date when the Cohort Definition criteria for the Person, Provider or Visit no longer match or the Cohort membership was terminated.",cohort,
results,cohort_attribute,cohort_definition_id,Yes,INTEGER,A foreign key to a record in the [COHORT_DEFINITION](https://github.com/OHDSI/CommonDataModel/wiki/COHORT_DEFINITION) table containing relevant Cohort Definition information.,cohort_attribute,
results,cohort_attribute,subject_id,Yes,INTEGER,"A foreign key to the subject in the Cohort. These could be referring to records in the PERSON, PROVIDER, VISIT_OCCURRENCE table.",cohort_attribute,
results,cohort_attribute,cohort_start_date,Yes,DATE,"The date when the Cohort Definition criteria for the Person, Provider or Visit first match.",cohort_attribute,
results,cohort_attribute,cohort_end_date,Yes,DATE,"The date when the Cohort Definition criteria for the Person, Provider or Visit no longer match or the Cohort membership was terminated.",cohort_attribute,
results,cohort_attribute,attribute_definition_id,Yes,INTEGER,A foreign key to a record in the [ATTRIBUTE_DEFINITION](https://github.com/OHDSI/CommonDataModel/wiki/ATTRIBUTE_DEFINITION) table containing relevant Attribute Definition information.,cohort_attribute,
results,cohort_attribute,value_as_number,No,FLOAT,The attribute result stored as a number. This is applicable to attributes where the result is expressed as a numeric value.,cohort_attribute,
results,cohort_attribute,value_as_concept_id,No,INTEGER,The attribute result stored as a Concept ID. This is applicable to attributes where the result is expressed as a categorical value.,cohort_attribute,
cdm,condition_era,condition_era_id,Yes,INTEGER,A unique identifier for each Condition Era.,condition_era,
cdm,condition_era,person_id,Yes,INTEGER,A foreign key identifier to the Person who is experiencing the Condition during the Condition Era. The demographic details of that Person are stored in the PERSON table.,condition_era,
cdm,condition_era,condition_concept_id,Yes,INTEGER,A foreign key that refers to a standard Condition Concept identifier in the Standardized Vocabularies.,condition_era,
cdm,condition_era,condition_era_start_date,Yes,DATE,The start date for the Condition Era constructed from the individual instances of Condition Occurrences. It is the start date of the very first chronologically recorded instance of the condition.,condition_era,
cdm,condition_era,condition_era_end_date,Yes,DATE,The end date for the Condition Era constructed from the individual instances of Condition Occurrences. It is the end date of the final continuously recorded instance of the Condition.,condition_era,
cdm,condition_era,condition_occurrence_count,No,INTEGER,The number of individual Condition Occurrences used to construct the condition era.,condition_era,
cdm,dose_era,dose_era_id,Yes,INTEGER,A unique identifier for each Dose Era.,dose_era,
cdm,dose_era,person_id,Yes,INTEGER,A foreign key identifier to the Person who is subjected to the drug during the drug era. The demographic details of that Person are stored in the PERSON table.,dose_era,
cdm,dose_era,drug_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the active Ingredient Concept.,dose_era,
cdm,dose_era,unit_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the unit concept.,dose_era,
cdm,dose_era,dose_value,Yes,FLOAT,The numeric value of the dose.,dose_era,
cdm,dose_era,dose_era_start_date,Yes,DATE,The start date for the drug era constructed from the individual instances of drug exposures. It is the start date of the very first chronologically recorded instance of utilization of a drug.,dose_era,
cdm,dose_era,dose_era_end_date,Yes,DATE,The end date for the drug era constructed from the individual instance of drug exposures. It is the end date of the final continuously recorded instance of utilization of a drug.,dose_era,
cdm,drug_era,drug_era_id,Yes,INTEGER,A unique identifier for each Drug Era.,drug_era,
cdm,drug_era,person_id,Yes,INTEGER,A foreign key identifier to the Person who is subjected to the Drug during the fDrug Era. The demographic details of that Person are stored in the PERSON table.,drug_era,
cdm,drug_era,drug_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Ingredient Concept.,drug_era,
cdm,drug_era,drug_era_start_date,Yes,DATE,The start date for the Drug Era constructed from the individual instances of Drug Exposures. It is the start date of the very first chronologically recorded instance of conutilization of a Drug.,drug_era,
cdm,drug_era,drug_era_end_date,Yes,DATE,The end date for the drug era constructed from the individual instance of drug exposures. It is the end date of the final continuously recorded instance of utilization of a drug.,drug_era,
cdm,drug_era,drug_exposure_count,No,INTEGER,The number of individual Drug Exposure occurrences used to construct the Drug Era.,drug_era,
cdm,drug_era,gap_days,No,INTEGER,The number of days that are not covered by DRUG_EXPOSURE records that were used to make up the era record.,drug_era,
cdm,cost,cost_id,Yes,INTEGER,A unique identifier for each COST record.,cost,
cdm,cost,cost_event_id,Yes,INTEGER,"A foreign key identifier to the event (e.g. Measurement, Procedure, Visit, Drug Exposure, etc) record for which cost data are recorded.",cost,
cdm,cost,cost_domain_id,Yes,VARCHAR(20),"The concept representing the domain of the cost event, from which the corresponding table can be inferred that contains the entity for which cost information is recorded.",cost,
cdm,cost,cost_type_concept_id,Yes,INTEGER,"A foreign key identifier to a concept in the CONCEPT table for the provenance or the source of the COST data: Calculated from insurance claim information, provider revenue, calculated from cost-to-charge ratio, reported from accounting database, etc.",cost,
cdm,cost,currency_concept_id,No,INTEGER,"A foreign key identifier to the concept representing the 3-letter code used to delineate international currencies, such as USD for US Dollar.",cost,
cdm,cost,total_charge,No,FLOAT,"The total amount charged by some provider of goods or services (e.g. hospital, physician pharmacy, dme provider) to payers (insurance companies, the patient).",cost,
cdm,cost,total_cost,No,FLOAT,The cost incurred by the provider of goods or services.,cost,
cdm,cost,total_paid,No,FLOAT,The total amount actually paid from all payers for goods or services of the provider.,cost,
cdm,cost,paid_by_payer,No,FLOAT,The amount paid by the Payer for the goods or services.,cost,
cdm,cost,paid_by_patient,No,FLOAT,The total amount paid by the Person as a share of the expenses.,cost,
cdm,cost,paid_patient_copay,No,FLOAT,The amount paid by the Person as a fixed contribution to the expenses.,cost,
cdm,cost,paid_patient_coinsurance,No,FLOAT,"The amount paid by the Person as a joint assumption of risk. Typically, this is a percentage of the expenses defined by the Payer Plan after the Person's deductible is exceeded.",cost,
cdm,cost,paid_patient_deductible,No,FLOAT,The amount paid by the Person that is counted toward the deductible defined by the Payer Plan. paid_patient_deductible does contribute to the paid_by_patient variable.,cost,
cdm,cost,paid_by_primary,No,FLOAT,The amount paid by a primary Payer through the coordination of benefits.,cost,
cdm,cost,paid_ingredient_cost,No,FLOAT,"The amount paid by the Payer to a pharmacy for the drug, excluding the amount paid for dispensing the drug. paid_ingredient_cost contributes to the paid_by_payer field if this field is populated with a nonzero value.",cost,
cdm,cost,paid_dispensing_fee,No,FLOAT,"The amount paid by the Payer to a pharmacy for dispensing a drug, excluding the amount paid for the drug ingredient. paid_dispensing_fee contributes to the paid_by_payer field if this field is populated with a nonzero value.",cost,
cdm,cost,payer_plan_period_id,No,INTEGER,"A foreign key to the PAYER_PLAN_PERIOD table, where the details of the Payer, Plan and Family are stored. Record the payer_plan_id that relates to the payer who contributed to the paid_by_payer field.",cost,
cdm,cost,amount_allowed,No,FLOAT,The contracted amount agreed between the payer and provider.,cost,
cdm,cost,revenue_code_concept_id,No,INTEGER,A foreign key referring to a Standard Concept ID in the Standardized Vocabularies for Revenue codes.,cost,
cdm,cost,revenue_code_source_value,No,VARCHAR(50),"The source code for the Revenue code as it appears in the source data, stored here for reference.",cost,
cdm,cost,drg_concept_id,No,INTEGER,A foreign key to the predefined concept in the DRG Vocabulary reflecting the DRG for a visit.,cost,
cdm,cost,drg_source_value,No,VARCHAR(3),The 3-digit DRG source code as it appears in the source data.,cost,
cdm,payer_plan_period,payer_plan_period_id,Yes,INTEGER,"A identifier for each unique combination of payer, plan, family code and time span.",payer_plan_period,
cdm,payer_plan_period,person_id,Yes,INTEGER,A foreign key identifier to the Person covered by the payer. The demographic details of that Person are stored in the PERSON table.,payer_plan_period,
cdm,payer_plan_period,payer_plan_period_start_date,Yes,DATE,The start date of the payer plan period.,payer_plan_period,
cdm,payer_plan_period,payer_plan_period_end_date,Yes,DATE,The end date of the payer plan period.,payer_plan_period,
cdm,payer_plan_period,payer_concept_id,No,INTEGER,A foreign key that refers to a standard Payer concept identifier in the Standarized Vocabularies,payer_plan_period,
cdm,payer_plan_period,payer_source_value,No,VARCHAR(50),The source code for the payer as it appears in the source data.,payer_plan_period,
cdm,payer_plan_period,payer_source_concept_id,No,INTEGER,A foreign key to a payer concept that refers to the code used in the source.,payer_plan_period,
cdm,payer_plan_period,plan_concept_id,No,INTEGER,A foreign key that refers to a standard plan concept identifier that represents the health benefit plan in the Standardized Vocabularies,payer_plan_period,
cdm,payer_plan_period,plan_source_value,No,VARCHAR(50),The source code for the Person's health benefit plan as it appears in the source data.,payer_plan_period,
cdm,payer_plan_period,plan_source_concept_id,No,INTEGER,A foreign key to a plan concept that refers to the plan code used in the source data.,payer_plan_period,
cdm,payer_plan_period,sponsor_concept_id,No,INTEGER,A foreign key that refers to a concept identifier that represents the sponsor in the Standardized Vocabularies.,payer_plan_period,
cdm,payer_plan_period,sponsor_source_value,No,VARCHAR(50),The source code for the Person's sponsor of the health plan as it appears in the source data.,payer_plan_period,
cdm,payer_plan_period,sponsor_source_concept_id,No,INTEGER,A foreign key to a sponsor concept that refers to the sponsor code used in the source data.,payer_plan_period,
cdm,payer_plan_period,family_source_value,No,VARCHAR(50),The source code for the Person's family as it appears in the source data.,payer_plan_period,
cdm,payer_plan_period,stop_reason_concept_id,No,INTEGER,A foreign key that refers to a standard termination reason that represents the reason for the termination in the Standardized Vocabularies.,payer_plan_period,
cdm,payer_plan_period,stop_reason_source_value,No,VARCHAR(50),The reason for stop-coverage as it appears in the source data.,payer_plan_period,
cdm,payer_plan_period,stop_reason_source_concept_id,No,INTEGER,A foreign key to a stop-coverage concept that refers to the code used in the source.,payer_plan_period,
cdm,care_site,care_site_id,Yes,INTEGER,A unique identifier for each Care Site.,care_site,
cdm,care_site,care_site_name,No,VARCHAR(255),The verbatim description or name of the Care Site as in data source,care_site,
cdm,care_site,place_of_service_concept_id,No,INTEGER,A foreign key that refers to a Place of Service Concept ID in the Standardized Vocabularies.,care_site,
cdm,care_site,location_id,No,INTEGER,"A foreign key to the geographic Location in the LOCATION table, where the detailed address information is stored.",care_site,
cdm,care_site,care_site_source_value,No,VARCHAR(50),"The identifier for the Care Site in the source data, stored here for reference.",care_site,
cdm,care_site,place_of_service_source_value,No,VARCHAR(50),"The source code for the Place of Service as it appears in the source data, stored here for reference.",care_site,
cdm,location,location_id,Yes,INTEGER,A unique identifier for each geographic location.,location,
cdm,location,address_1,No,VARCHAR(50),"The address field 1, typically used for the street address, as it appears in the source data.",location,
cdm,location,address_2,No,VARCHAR(50),"The address field 2, typically used for additional detail such as buildings, suites, floors, as it appears in the source data.",location,
cdm,location,city,No,VARCHAR(50),The city field as it appears in the source data.,location,
cdm,location,state,No,VARCHAR(2),The state field as it appears in the source data.,location,
cdm,location,zip,No,VARCHAR(9),The zip or postal code.,location,
cdm,location,county,No,VARCHAR(20),The county.,location,
cdm,location,location_source_value,No,VARCHAR(50),The verbatim information that is used to uniquely identify the location as it appears in the source data.,location,
cdm,provider,provider_id,Yes,INTEGER,A unique identifier for each Provider.,provider,
cdm,provider,provider_name,No,VARCHAR(255),A description of the Provider.,provider,
cdm,provider,npi,No,VARCHAR(20),The National Provider Identifier (NPI) of the provider.,provider,
cdm,provider,dea,No,VARCHAR(20),The Drug Enforcement Administration (DEA) number of the provider.,provider,
cdm,provider,specialty_concept_id,No,INTEGER,A foreign key to a Standard Specialty Concept ID in the Standardized Vocabularies.,provider,
cdm,provider,care_site_id,No,INTEGER,A foreign key to the main Care Site where the provider is practicing.,provider,
cdm,provider,year_of_birth,No,INTEGER,The year of birth of the Provider.,provider,
cdm,provider,gender_concept_id,No,INTEGER,The gender of the Provider.,provider,
cdm,provider,provider_source_value,No,VARCHAR(50),"The identifier used for the Provider in the source data, stored here for reference.",provider,
cdm,provider,specialty_source_value,No,VARCHAR(50),"The source code for the Provider specialty as it appears in the source data, stored here for reference.",provider,
cdm,provider,specialty_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code used in the source.,provider,
cdm,provider,gender_source_value,No,VARCHAR(50),"The gender code for the Provider as it appears in the source data, stored here for reference.",provider,
cdm,provider,gender_source_concept_id,No,INTEGER,A foreign key to a Concept that refers to the code used in the source.,provider,
cdm,cdm_source,cdm_source_name,Yes,VARCHAR(255),The full name of the source,cdm_source,
cdm,cdm_source,cdm_source_abbreviation,No,VARCHAR(25),An abbreviation of the name,cdm_source,
cdm,cdm_source,cdm_holder,No,VARCHAR(255),The name of the organization responsible for the development of the CDM instance,cdm_source,
cdm,cdm_source,source_description,No,CLOB,A description of the source data origin and purpose for collection. The description may contain a summary of the period of time that is expected to be covered by this dataset.,cdm_source,
cdm,cdm_source,source_documentation_reference,No,VARCHAR(255),URL or other external reference to location of source documentation,cdm_source,
cdm,cdm_source,cdm_etl _reference,No,VARCHAR(255),URL or other external reference to location of ETL specification documentation and ETL source code,cdm_source,
cdm,cdm_source,source_release_date,No,DATE,"The date for which the source data are most current, such as the last day of data capture",cdm_source,
cdm,cdm_source,cdm_release_date,No,DATE,The date when the CDM was instantiated,cdm_source,
cdm,cdm_source,cdm_version,No,VARCHAR(10),The version of CDM used,cdm_source,
cdm,cdm_source,vocabulary_version,No,VARCHAR(20),The version of the vocabulary used,cdm_source,
cdm,metadata,metadata_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Metadata Concept identifier in the Standardized Vocabularies.,metadata,
cdm,metadata,metadata_type_concept_id,Yes,INTEGER,A foreign key that refers to a Standard Type Concept identifier in the Standardized Vocabularies.,metadata,
cdm,metadata,name,Yes,VARCHAR(250),The name of the Concept stored in metadata_concept_id or a description of the data being stored.,metadata,
cdm,metadata,value_as_string,No,NVARCHAR,The metadata value stored as a string.,metadata,
cdm,metadata,value_as_concept_id,No,INTEGER,A foreign key to a metadata value stored as a Concept ID.,metadata,
cdm,metadata,metadata date,No,DATE,The date associated with the metadata,metadata,
cdm,metadata,metadata_datetime,No,DATETIME,The date and time associated with the metadata,metadata,
cdm,metadata,attribute_definition_id,Yes,INTEGER,A unique identifier for each Attribute.,attribute_definition,
cdm,metadata,attribute_name,Yes,VARCHAR(255),A short description of the Attribute.,attribute_definition,
cdm,metadata,attribute_description,No,VARCHAR(MAX),A complete description of the Attribute definition,attribute_definition,
cdm,metadata,attribute_type_concept_id,Yes,INTEGER,Type defining what kind of Attribute Definition the record represents and how the syntax may be executed,attribute_definition,
cdm,metadata,attribute_syntax,No,VARCHAR(MAX),Syntax or code to operationalize the Attribute definition,attribute_definition,
results,cohort_definition,cohort_definition_id,Yes,INTEGER,A unique identifier for each Cohort.,cohort_definition,
results,cohort_definition,cohort_definition_name,Yes,VARCHAR(255),A short description of the Cohort.,cohort_definition,
results,cohort_definition,cohort_definition_description,No,VARCHAR(MAX),A complete description of the Cohort definition,cohort_definition,
results,cohort_definition,definition_type_concept_id,Yes,INTEGER,Type defining what kind of Cohort Definition the record represents and how the syntax may be executed,cohort_definition,
results,cohort_definition,cohort_definition_syntax,No,VARCHAR(MAX),Syntax or code to operationalize the Cohort definition,cohort_definition,
results,cohort_definition,subject_concept_id,Yes,INTEGER,"A foreign key to the Concept to which defines the domain of subjects that are members of the cohort (e.g., Person, Provider, Visit).",cohort_definition,
results,cohort_definition,cohort_instantiation_date,No,DATE,A date to indicate when the Cohort was instantiated in the COHORT table,cohort_definition,
cdm,concept,concept_id,Yes,INTEGER,A unique identifier for each Concept across all domains.,concept,
cdm,concept,concept_name,Yes,VARCHAR(255),"An unambiguous, meaningful and descriptive name for the Concept.",concept,
cdm,concept,domain_id,Yes,VARCHAR(20),A foreign key to the [DOMAIN](https://github.com/OHDSI/CommonDataModel/wiki/DOMAIN) table the Concept belongs to.,concept,
cdm,concept,vocabulary_id,Yes,VARCHAR(20),A foreign key to the [VOCABULARY](https://github.com/OHDSI/CommonDataModel/wiki/VOCABULARY) table indicating from which source the Concept has been adapted.,concept,
cdm,concept,concept_class_id,Yes,VARCHAR(20),"The attribute or concept class of the Concept. Examples are 'Clinical Drug', 'Ingredient', 'Clinical Finding' etc.",concept,
cdm,concept,standard_concept,No,VARCHAR(1),"This flag determines where a Concept is a Standard Concept, i.e. is used in the data, a Classification Concept, or a non-standard Source Concept. The allowables values are 'S' (Standard Concept) and 'C' (Classification Concept), otherwise the content is NULL.",concept,
cdm,concept,concept_code,Yes,VARCHAR(50),"The concept code represents the identifier of the Concept in the source vocabulary, such as SNOMED-CT concept IDs, RxNorm RXCUIs etc. Note that concept codes are not unique across vocabularies.",concept,
cdm,concept,valid_start_date,Yes,DATE,"The date when the Concept was first recorded. The default value is 1-Jan-1970, meaning, the Concept has no (known) date of inception.",concept,
cdm,concept,valid_end_date,Yes,DATE,"The date when the Concept became invalid because it was deleted or superseded (updated) by a new concept. The default value is 31-Dec-2099, meaning, the Concept is valid until it becomes deprecated.",concept,
cdm,concept,invalid_reason,No,VARCHAR(1),"Reason the Concept was invalidated. Possible values are D (deleted), U (replaced with an update) or NULL when valid_end_date has the default value.",concept,
cdm,concept_ancestor,ancestor_concept_id,Yes,INTEGER,A foreign key to the concept in the concept table for the higher-level concept that forms the ancestor in the relationship.,concept_ancestor,
cdm,concept_ancestor,descendant_concept_id,Yes,INTEGER,A foreign key to the concept in the concept table for the lower-level concept that forms the descendant in the relationship.,concept_ancestor,
cdm,concept_ancestor,min_levels_of_separation,Yes,INTEGER,The minimum separation in number of levels of hierarchy between ancestor and descendant concepts. This is an attribute that is used to simplify hierarchic analysis.,concept_ancestor,
cdm,concept_ancestor,max_levels_of_separation,Yes,INTEGER,The maximum separation in number of levels of hierarchy between ancestor and descendant concepts. This is an attribute that is used to simplify hierarchic analysis.,concept_ancestor,
cdm,concept_class,concept_class_id,Yes,VARCHAR(20),A unique key for each class.,concept_class,
cdm,concept_class,concept_class_name,Yes,VARCHAR(255),"The name describing the Concept Class, e.g. ""Clinical Finding"", ""Ingredient"", etc.",concept_class,
cdm,concept_class,concept_class_concept_id,Yes,INTEGER,A foreign key that refers to an identifier in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table for the unique Concept Class the record belongs to.,concept_class,
cdm,concept_relationship,concept_id_1,Yes,INTEGER,"A foreign key to a Concept in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table associated with the relationship. Relationships are directional, and this field represents the source concept designation.",concept_relationship,
cdm,concept_relationship,concept_id_2,Yes,INTEGER,"A foreign key to a Concept in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table associated with the relationship. Relationships are directional, and this field represents the destination concept designation.",concept_relationship,
cdm,concept_relationship,relationship_id,Yes,VARCHAR(20),A unique identifier to the type or nature of the Relationship as defined in the [RELATIONSHIP](https://github.com/OHDSI/CommonDataModel/wiki/RELATIONSHIP) table.,concept_relationship,
cdm,concept_relationship,valid_start_date,Yes,DATE,The date when the instance of the Concept Relationship is first recorded.,concept_relationship,
cdm,concept_relationship,valid_end_date,Yes,DATE,The date when the Concept Relationship became invalid because it was deleted or superseded (updated) by a new relationship. Default value is 31-Dec-2099.,concept_relationship,
cdm,concept_relationship,invalid_reason,No,VARCHAR(1),"Reason the relationship was invalidated. Possible values are 'D' (deleted), 'U' (replaced with an update) or NULL when valid_end_date has the default value.",concept_relationship,
cdm,concept_synonym,concept_id,Yes,INTEGER,A foreign key to the Concept in the CONCEPT table.,concept_synonym,
cdm,concept_synonym,concept_synonym_name,Yes,VARCHAR(1000),The alternative name for the Concept.,concept_synonym,
cdm,concept_synonym,language_concept_id,Yes,INTEGER,A foreign key to a Concept representing the language.,concept_synonym,
cdm,domain,domain_id,Yes,VARCHAR(20),A unique key for each domain.,domain,
cdm,domain,domain_name,Yes,VARCHAR(255),"The name describing the Domain, e.g. ""Condition"", ""Procedure"", ""Measurement"" etc.",domain,
cdm,domain,domain_concept_id,Yes,INTEGER,A foreign key that refers to an identifier in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table for the unique Domain Concept the Domain record belongs to.,domain,
cdm,drug_strength,drug_concept_id,Yes,INTEGER,A foreign key to the Concept in the CONCEPT table representing the identifier for Branded Drug or Clinical Drug Concept.,drug_strength,
cdm,drug_strength,ingredient_concept_id,Yes,INTEGER,"A foreign key to the Concept in the CONCEPT table, representing the identifier for drug Ingredient Concept contained within the drug product.",drug_strength,
cdm,drug_strength,amount_value,No,FLOAT,The numeric value associated with the amount of active ingredient contained within the product.,drug_strength,
cdm,drug_strength,amount_unit_concept_id,No,INTEGER,A foreign key to the Concept in the CONCEPT table representing the identifier for the Unit for the absolute amount of active ingredient.,drug_strength,
cdm,drug_strength,numerator_value,No,FLOAT,The numeric value associated with the concentration of the active ingredient contained in the product,drug_strength,
cdm,drug_strength,numerator_unit_concept_id,No,INTEGER,A foreign key to the Concept in the CONCEPT table representing the identifier for the numerator Unit for the concentration of active ingredient.,drug_strength,
cdm,drug_strength,denominator_value,No,FLOAT,"The amount of total liquid (or other divisible product, such as ointment, gel, spray, etc.).",drug_strength,
cdm,drug_strength,denominator_unit_concept_id,No,INTEGER,A foreign key to the Concept in the CONCEPT table representing the identifier for the denominator Unit for the concentration of active ingredient.,drug_strength,
cdm,drug_strength,box_size,No,INTEGER,"The number of units of Clinical of Branded Drug, or Quantified Clinical or Branded Drug contained in a box as dispensed to the patient",drug_strength,
cdm,drug_strength,valid_start_date,Yes,DATE,The date when the Concept was first recorded. The default value is 1-Jan-1970.,drug_strength,
cdm,drug_strength,valid_end_date,Yes,DATE,The date when the concept became invalid because it was deleted or superseded (updated) by a new Concept. The default value is 31-Dec-2099.,drug_strength,
cdm,drug_strength,invalid_reason,No,VARCHAR(1),"Reason the concept was invalidated. Possible values are 'D' (deleted), 'U' (replaced with an update) or NULL when valid_end_date has the default value.",drug_strength,
cdm,relationship,relationship_id,Yes,VARCHAR(20),The type of relationship captured by the relationship record.,relationship,
cdm,relationship,relationship_name,Yes,VARCHAR(255),The text that describes the relationship type.,relationship,
cdm,relationship,is_hierarchical,Yes,VARCHAR(1),Defines whether a relationship defines concepts into classes or hierarchies. Values are 1 for hierarchical relationship or 0 if not.,relationship,
cdm,relationship,defines_ancestry,Yes,VARCHAR(1),Defines whether a hierarchical relationship contributes to the concept_ancestor table. These are subsets of the hierarchical relationships. Valid values are 1 or 0.,relationship,
cdm,relationship,reverse_relationship_id,Yes,VARCHAR(20),The identifier for the relationship used to define the reverse relationship between two concepts.,relationship,
cdm,relationship,relationship_concept_id,Yes,INTEGER,A foreign key that refers to an identifier in the CONCEPT table for the unique relationship concept.,relationship,
cdm,source_to_concept_map,source_code,Yes,VARCHAR(50),The source code being translated into a Standard Concept.,source_to_concept_map,
cdm,source_to_concept_map,source_concept_id,Yes,INTEGER,A foreign key to the Source Concept that is being translated into a Standard Concept.,source_to_concept_map,
cdm,source_to_concept_map,source_vocabulary_id,Yes,VARCHAR(20),A foreign key to the VOCABULARY table defining the vocabulary of the source code that is being translated to a Standard Concept.,source_to_concept_map,
cdm,source_to_concept_map,source_code_description,No,VARCHAR(255),An optional description for the source code. This is included as a convenience to compare the description of the source code to the name of the concept.,source_to_concept_map,
cdm,source_to_concept_map,target_concept_id,Yes,INTEGER,A foreign key to the target Concept to which the source code is being mapped.,source_to_concept_map,
cdm,source_to_concept_map,target_vocabulary_id,Yes,VARCHAR(20),A foreign key to the VOCABULARY table defining the vocabulary of the target Concept.,source_to_concept_map,
cdm,source_to_concept_map,valid_start_date,Yes,DATE,The date when the mapping instance was first recorded.,source_to_concept_map,
cdm,source_to_concept_map,valid_end_date,Yes,DATE,The date when the mapping instance became invalid because it was deleted or superseded (updated) by a new relationship. Default value is 31-Dec-2099.,source_to_concept_map,
cdm,source_to_concept_map,invalid_reason,No,VARCHAR(1),"Reason the mapping instance was invalidated. Possible values are D (deleted), U (replaced with an update) or NULL when valid_end_date has the default value.",source_to_concept_map,
cdm,vocabulary,vocabulary_id,Yes,VARCHAR(20),"A unique identifier for each Vocabulary, such as ICD9CM, SNOMED, Visit.",vocabulary,
cdm,vocabulary,vocabulary_name,Yes,VARCHAR(255),"The name describing the vocabulary, for example ""International Classification of Diseases, Ninth Revision, Clinical Modification, Volume 1 and 2 (NCHS)"" etc.",vocabulary,
cdm,vocabulary,vocabulary_reference,Yes,VARCHAR(255),External reference to documentation or available download of the about the vocabulary.,vocabulary,
cdm,vocabulary,vocabulary_version,Yes,VARCHAR(255),Version of the Vocabulary as indicated in the source.,vocabulary,
cdm,vocabulary,vocabulary_concept_id,Yes,INTEGER,A foreign key that refers to a standard concept identifier in the CONCEPT table for the Vocabulary the VOCABULARY record belongs to.,vocabulary,
1 schema table field required type description table
2 cdm condition_occurrence condition_occurrence_id Yes INTEGER A unique identifier for each Condition Occurrence event. condition_occurrence
3 cdm condition_occurrence person_id Yes INTEGER A foreign key identifier to the Person who is experiencing the condition. The demographic details of that Person are stored in the PERSON table. condition_occurrence
4 cdm condition_occurrence condition_concept_id Yes INTEGER A foreign key that refers to a Standard Condition Concept identifier in the Standardized Vocabularies. condition_occurrence
5 cdm condition_occurrence condition_start_date Yes DATE The date when the instance of the Condition is recorded. condition_occurrence
6 cdm condition_occurrence condition_start_datetime No DATETIME The date and time when the instance of the Condition is recorded. condition_occurrence
7 cdm condition_occurrence condition_end_date No DATE The date when the instance of the Condition is considered to have ended. condition_occurrence
8 cdm condition_occurrence condition_end_datetime No DATE The date when the instance of the Condition is considered to have ended. condition_occurrence
9 cdm condition_occurrence condition_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the source data from which the condition was recorded, the level of standardization, and the type of occurrence. condition_occurrence
10 cdm condition_occurrence stop_reason No VARCHAR(20) The reason that the condition was no longer present, as indicated in the source data. condition_occurrence
11 cdm condition_occurrence provider_id No INTEGER A foreign key to the Provider in the PROVIDER table who was responsible for capturing (diagnosing) the Condition. condition_occurrence
12 cdm condition_occurrence visit_occurrence_id No INTEGER A foreign key to the visit in the VISIT_OCCURRENCE table during which the Condition was determined (diagnosed). condition_occurrence
13 cdm condition_occurrence visit_detail_id No INTEGER A foreign key to the visit in the VISIT_DETAIL table during which the Condition was determined (diagnosed). condition_occurrence
14 cdm condition_occurrence condition_source_value No VARCHAR(50) The source code for the condition as it appears in the source data. This code is mapped to a standard condition concept in the Standardized Vocabularies and the original code is stored here for reference. condition_occurrence
15 cdm condition_occurrence condition_source_concept_id No INTEGER A foreign key to a Condition Concept that refers to the code used in the source. condition_occurrence
16 cdm condition_occurrence condition_status_source_value No VARCHAR(50) The source code for the condition status as it appears in the source data. condition_occurrence
17 cdm condition_occurrence condition_status_concept_id No INTEGER A foreign key to the predefined Concept in the Standard Vocabulary reflecting the condition status condition_occurrence
18 cdm death person_id Yes INTEGER A foreign key identifier to the deceased person. The demographic details of that person are stored in the person table. death
19 cdm death death_date Yes DATE The date the person was deceased. If the precise date including day or month is not known or not allowed, December is used as the default month, and the last day of the month the default day. death
20 cdm death death_datetime No DATETIME The date and time the person was deceased. If the precise date including day or month is not known or not allowed, December is used as the default month, and the last day of the month the default day. death
21 cdm death death_type_concept_id Yes INTEGER A foreign key referring to the predefined concept identifier in the Standardized Vocabularies reflecting how the death was represented in the source data. death
22 cdm death cause_concept_id No INTEGER A foreign key referring to a standard concept identifier in the Standardized Vocabularies for conditions. death
23 cdm death cause_source_value No VARCHAR(50) The source code for the cause of death as it appears in the source data. This code is mapped to a standard concept in the Standardized Vocabularies and the original code is, stored here for reference. death
24 cdm death cause_source_concept_id No INTEGER A foreign key to the concept that refers to the code used in the source. Note, this variable name is abbreviated to ensure it will be allowable across database platforms. death
25 cdm device_exposure device_exposure_id Yes INTEGER A system-generated unique identifier for each Device Exposure. device_exposure
26 cdm device_exposure person_id Yes INTEGER A foreign key identifier to the Person who is subjected to the Device. The demographic details of that person are stored in the Person table. device_exposure
27 cdm device_exposure device_concept_id Yes INTEGER A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Device concept. device_exposure
28 cdm device_exposure device_exposure_start_date Yes DATE The date the Device or supply was applied or used. device_exposure
29 cdm device_exposure device_exposure_start_datetime No DATETIME The date and time the Device or supply was applied or used. device_exposure
30 cdm device_exposure device_exposure_end_date No DATE The date the Device or supply was removed from use. device_exposure
31 cdm device_exposure device_exposure_end_datetime No DATETIME The date and time the Device or supply was removed from use. device_exposure
32 cdm device_exposure device_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of Device Exposure recorded. It indicates how the Device Exposure was represented in the source data. device_exposure
33 cdm device_exposure unique_device_id No VARCHAR(50) A UDI or equivalent identifying the instance of the Device used in the Person. device_exposure
34 cdm device_exposure quantity No INTEGER The number of individual Devices used for the exposure. device_exposure
35 cdm device_exposure provider_id No INTEGER A foreign key to the provider in the PROVIDER table who initiated of administered the Device. device_exposure
36 cdm device_exposure visit_occurrence_id No INTEGER A foreign key to the visit in the VISIT_OCCURRENCE table during which the device was used. device_exposure
37 cdm device_exposure visit_detail_id No INTEGER A foreign key to the visit detail in the VISIT_DETAIL table during which the Drug Exposure was initiated. device_exposure
38 cdm device_exposure device_source_value No VARCHAR(50) The source code for the Device as it appears in the source data. This code is mapped to a standard Device Concept in the Standardized Vocabularies and the original code is stored here for reference. device_exposure
39 cdm device_exposure device_source_ concept_id No INTEGER A foreign key to a Device Concept that refers to the code used in the source. device_exposure
40 cdm drug_exposure drug_exposure_id Yes INTEGER A system-generated unique identifier for each Drug utilization event. drug_exposure
41 cdm drug_exposure person_id Yes INTEGER A foreign key identifier to the person who is subjected to the Drug. The demographic details of that person are stored in the person table. drug_exposure
42 cdm drug_exposure drug_concept_id Yes INTEGER A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Drug concept. drug_exposure
43 cdm drug_exposure drug_exposure_start_date Yes DATE The start date for the current instance of Drug utilization. Valid entries include a start date of a prescription, the date a prescription was filled, or the date on which a Drug administration procedure was recorded. drug_exposure
44 cdm drug_exposure drug_exposure_start_datetime No DATETIME The start date and time for the current instance of Drug utilization. Valid entries include a start date of a prescription, the date a prescription was filled, or the date on which a Drug administration procedure was recorded. drug_exposure
45 cdm drug_exposure drug_exposure_end_date Yes DATE The end date for the current instance of Drug utilization. It is not available from all sources. drug_exposure
46 cdm drug_exposure drug_exposure_end_datetime No DATETIME The end date and time for the current instance of Drug utilization. It is not available from all sources. drug_exposure
47 cdm drug_exposure verbatim_end_date No DATE The known end date of a drug_exposure as provided by the source drug_exposure
48 cdm drug_exposure drug_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of Drug Exposure recorded. It indicates how the Drug Exposure was represented in the source data. drug_exposure
49 cdm drug_exposure stop_reason No VARCHAR(20) The reason the Drug was stopped. Reasons include regimen completed, changed, removed, etc. drug_exposure
50 cdm drug_exposure refills No INTEGER The number of refills after the initial prescription. The initial prescription is not counted, values start with 0. drug_exposure
51 cdm drug_exposure quantity No FLOAT The quantity of drug as recorded in the original prescription or dispensing record. drug_exposure
52 cdm drug_exposure days_supply No INTEGER The number of days of supply of the medication as recorded in the original prescription or dispensing record. drug_exposure
53 cdm drug_exposure sig No VARCHAR(MAX) The directions ("signetur") on the Drug prescription as recorded in the original prescription (and printed on the container) or dispensing record. drug_exposure
54 cdm drug_exposure route_concept_id No INTEGER A foreign key to a predefined concept in the Standardized Vocabularies reflecting the route of administration. drug_exposure
55 cdm drug_exposure lot_number No VARCHAR(50) An identifier assigned to a particular quantity or lot of Drug product from the manufacturer. drug_exposure
56 cdm drug_exposure provider_id No INTEGER A foreign key to the provider in the PROVIDER table who initiated (prescribed or administered) the Drug Exposure. drug_exposure
57 cdm drug_exposure visit_occurrence_id No INTEGER A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Drug Exposure was initiated. drug_exposure
58 cdm drug_exposure visit_detail_id No INTEGER A foreign key to the Visit Detail in the VISIT_DETAIL table during which the Drug Exposure was initiated. drug_exposure
59 cdm drug_exposure drug_source_value No VARCHAR(50) The source code for the Drug as it appears in the source data. This code is mapped to a Standard Drug concept in the Standardized Vocabularies and the original code is, stored here for reference. drug_exposure
60 cdm drug_exposure drug_source_concept_id No INTEGER A foreign key to a Drug Concept that refers to the code used in the source. drug_exposure
61 cdm drug_exposure route_source_value No VARCHAR(50) The information about the route of administration as detailed in the source. drug_exposure
62 cdm drug_exposure dose_unit_source_value No VARCHAR(50) The information about the dose unit as detailed in the source. drug_exposure
63 cdm fact_relationship domain_concept_id_1 Yes INTEGER The concept representing the domain of fact one, from which the corresponding table can be inferred. fact_relationship
64 cdm fact_relationship fact_id_1 Yes INTEGER The unique identifier in the table corresponding to the domain of fact one. fact_relationship
65 cdm fact_relationship domain_concept_id_2 Yes INTEGER The concept representing the domain of fact two, from which the corresponding table can be inferred. fact_relationship
66 cdm fact_relationship fact_id_2 Yes INTEGER The unique identifier in the table corresponding to the domain of fact two. fact_relationship
67 cdm fact_relationship relationship_concept_id Yes INTEGER A foreign key to a Standard Concept ID of relationship in the Standardized Vocabularies. fact_relationship
68 cdm measurement measurement_id Yes INTEGER A unique identifier for each Measurement. measurement
69 cdm measurement person_id Yes INTEGER A foreign key identifier to the Person about whom the measurement was recorded. The demographic details of that Person are stored in the PERSON table. measurement
70 cdm measurement measurement_concept_id Yes INTEGER A foreign key to the standard measurement concept identifier in the Standardized Vocabularies. measurement
71 cdm measurement measurement_date Yes DATE The date of the Measurement. measurement
72 cdm measurement measurement_datetime No DATETIME The date and time of the Measurement. Some database systems don't have a datatype of time. To accomodate all temporal analyses, datatype datetime can be used (combining measurement_date and measurement_time [forum discussion](http://forums.ohdsi.org/t/date-time-and-datetime-problem-and-the-world-of-hours-and-1day/314)) measurement
73 cdm measurement measurement_type_concept_id Yes INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the provenance from where the Measurement record was recorded. measurement
74 cdm measurement operator_concept_id No INTEGER A foreign key identifier to the predefined Concept in the Standardized Vocabularies reflecting the mathematical operator that is applied to the value_as_number. Operators are <, <=, =, >=, >. measurement
75 cdm measurement value_as_number No FLOAT A Measurement result where the result is expressed as a numeric value. measurement
76 cdm measurement value_as_concept_id No INTEGER A foreign key to a Measurement result represented as a Concept from the Standardized Vocabularies (e.g., positive/negative, present/absent, low/high, etc.). measurement
77 cdm measurement unit_concept_id No INTEGER A foreign key to a Standard Concept ID of Measurement Units in the Standardized Vocabularies. measurement
78 cdm measurement range_low No FLOAT The lower limit of the normal range of the Measurement result. The lower range is assumed to be of the same unit of measure as the Measurement value. measurement
79 cdm measurement range_high No FLOAT The upper limit of the normal range of the Measurement. The upper range is assumed to be of the same unit of measure as the Measurement value. measurement
80 cdm measurement provider_id No INTEGER A foreign key to the provider in the PROVIDER table who was responsible for initiating or obtaining the measurement. measurement
81 cdm measurement visit_occurrence_id No INTEGER A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Measurement was recorded. measurement
82 cdm measurement visit_detail_id No INTEGER A foreign key to the Visit Detail in the VISIT_DETAIL table during which the Measurement was recorded. measurement
83 cdm measurement measurement_source_value No VARCHAR(50) The Measurement name as it appears in the source data. This code is mapped to a Standard Concept in the Standardized Vocabularies and the original code is stored here for reference. measurement
84 cdm measurement measurement_source_concept_id No INTEGER A foreign key to a Concept in the Standard Vocabularies that refers to the code used in the source. measurement
85 cdm measurement unit_source_value No VARCHAR(50) The source code for the unit as it appears in the source data. This code is mapped to a standard unit concept in the Standardized Vocabularies and the original code is stored here for reference. measurement
86 cdm measurement value_source_value No VARCHAR(50) The source value associated with the content of the value_as_number or value_as_concept_id as stored in the source data. measurement
87 cdm note note_id Yes INTEGER A unique identifier for each note. note
88 cdm note person_id Yes INTEGER A foreign key identifier to the Person about whom the Note was recorded. The demographic details of that Person are stored in the PERSON table. note
89 cdm note note_date Yes DATE The date the note was recorded. note
90 cdm note note_datetime No DATETIME The date and time the note was recorded. note
91 cdm note note_type_concept_id Yes INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the type, origin or provenance of the Note. note
92 cdm note note_class_concept_id Yes INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the HL7 LOINC Document Type Vocabulary classification of the note. note
93 cdm note note_title No VARCHAR(250) The title of the Note as it appears in the source. note
94 cdm note note_text Yes VARCHAR(MAX) The content of the Note. note
95 cdm note encoding_concept_id Yes INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the note character encoding type note
96 cdm note language_concept_id Yes INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the language of the note note
97 cdm note provider_id No INTEGER A foreign key to the Provider in the PROVIDER table who took the Note. note
98 cdm note visit_occurrence_id No INTEGER A foreign key to the Visit in the VISIT_OCCURRENCE table when the Note was taken. note
99 cdm note visit_detail_id No INTEGER A foreign key to the Visit in the VISIT_DETAIL table when the Note was taken. note
100 cdm note note_source_value No VARCHAR(50) The source value associated with the origin of the Note note
101 cdm note_nlp note_nlp_id Yes INTEGER A unique identifier for each term extracted from a note. note_nlp
102 cdm note_nlp note_id Yes INTEGER A foreign key to the Note table note the term was extracted from. note_nlp
103 cdm note_nlp section_concept_id No INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies representing the section of the extracted term. note_nlp
104 cdm note_nlp snippet No VARCHAR(250) A small window of text surrounding the term. note_nlp
105 cdm note_nlp offset No VARCHAR(50) Character offset of the extracted term in the input note. note_nlp
106 cdm note_nlp lexical_variant Yes VARCHAR(250) Raw text extracted from the NLP tool. note_nlp
107 cdm note_nlp note_nlp_concept_id No INTEGER A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the normalized concept for the extracted term. Domain of the term is represented as part of the Concept table. note_nlp
108 cdm note_nlp note_nlp_source_concept_id No INTEGER A foreign key to a Concept that refers to the code in the source vocabulary used by the NLP system note_nlp
109 cdm note_nlp nlp_system No VARCHAR(250) Name and version of the NLP system that extracted the term.Useful for data provenance. note_nlp
110 cdm note_nlp nlp_date Yes DATE The date of the note processing.Useful for data provenance. note_nlp
111 cdm note_nlp nlp_date_time No DATETIME The date and time of the note processing. Useful for data provenance. note_nlp
112 cdm note_nlp term_exists No VARCHAR(1) A summary modifier that signifies presence or absence of the term for a given patient. Useful for quick querying. * note_nlp
113 cdm note_nlp term_temporal No VARCHAR(50) An optional time modifier associated with the extracted term. (for now �past� or �present� only). Standardize it later. note_nlp
114 cdm note_nlp term_modifiers No VARCHAR(2000) A compact description of all the modifiers of the specific term extracted by the NLP system. (e.g. �son has rash� ? �negated=no,subject=family, certainty=undef,conditional=false,general=false�). note_nlp
115 cdm observation observation_id Yes INTEGER A unique identifier for each observation. observation
116 cdm observation person_id Yes INTEGER A foreign key identifier to the Person about whom the observation was recorded. The demographic details of that Person are stored in the PERSON table. observation
117 cdm observation observation_concept_id Yes INTEGER A foreign key to the standard observation concept identifier in the Standardized Vocabularies. observation
118 cdm observation observation_date Yes DATE The date of the observation. observation
119 cdm observation observation_datetime No DATETIME The date and time of the observation. observation
120 cdm observation observation_type_concept_id Yes INTEGER A foreign key to the predefined concept identifier in the Standardized Vocabularies reflecting the type of the observation. observation
121 cdm observation value_as_number No FLOAT The observation result stored as a number. This is applicable to observations where the result is expressed as a numeric value. observation
122 cdm observation value_as_string No VARCHAR(60) The observation result stored as a string. This is applicable to observations where the result is expressed as verbatim text. observation
123 cdm observation value_as_concept_id No INTEGER A foreign key to an observation result stored as a Concept ID. This is applicable to observations where the result can be expressed as a Standard Concept from the Standardized Vocabularies (e.g., positive/negative, present/absent, low/high, etc.). observation
124 cdm observation qualifier_concept_id No INTEGER A foreign key to a Standard Concept ID for a qualifier (e.g., severity of drug-drug interaction alert) observation
125 cdm observation unit_concept_id No INTEGER A foreign key to a Standard Concept ID of measurement units in the Standardized Vocabularies. observation
126 cdm observation provider_id No INTEGER A foreign key to the provider in the PROVIDER table who was responsible for making the observation. observation
127 cdm observation visit_occurrence_id No INTEGER A foreign key to the visit in the VISIT_OCCURRENCE table during which the observation was recorded. observation
128 cdm observation visit_detail_id No INTEGER A foreign key to the visit in the VISIT_DETAIL table during which the observation was recorded. observation
129 cdm observation observation_source_value No VARCHAR(50) The observation code as it appears in the source data. This code is mapped to a Standard Concept in the Standardized Vocabularies and the original code is, stored here for reference. observation
130 cdm observation observation_source_concept_id No INTEGER A foreign key to a Concept that refers to the code used in the source. observation
131 cdm observation unit_source_value No VARCHAR(50) The source code for the unit as it appears in the source data. This code is mapped to a standard unit concept in the Standardized Vocabularies and the original code is, stored here for reference. observation
132 cdm observation qualifier_source_value No VARCHAR(50) The source value associated with a qualifier to characterize the observation observation
133 cdm observation_period observation_period_id Yes INTEGER A unique identifier for each observation period. observation_period
134 cdm observation_period person_id Yes INTEGER A foreign key identifier to the person for whom the observation period is defined. The demographic details of that person are stored in the person table. observation_period
135 cdm observation_period observation_period_start_date Yes DATE The start date of the observation period for which data are available from the data source. observation_period
136 cdm observation_period observation_period_end_date Yes DATE The end date of the observation period for which data are available from the data source. observation_period
137 cdm observation_period period_type_concept_id Yes INTEGER A foreign key identifier to the predefined concept in the Standardized Vocabularies reflecting the source of the observation period information observation_period
138 cdm person person_id Yes INTEGER A unique identifier for each person. person
139 cdm person gender_concept_id Yes INTEGER A foreign key that refers to an identifier in the CONCEPT table for the unique gender of the person. person
140 cdm person year_of_birth Yes INTEGER The year of birth of the person. For data sources with date of birth, the year is extracted. For data sources where the year of birth is not available, the approximate year of birth is derived based on any age group categorization available. person
141 cdm person month_of_birth No INTEGER The month of birth of the person. For data sources that provide the precise date of birth, the month is extracted and stored in this field. person
142 cdm person day_of_birth No INTEGER The day of the month of birth of the person. For data sources that provide the precise date of birth, the day is extracted and stored in this field. person
143 cdm person birth_datetime No DATETIME The date and time of birth of the person. person
144 cdm person race_concept_id Yes INTEGER A foreign key that refers to an identifier in the CONCEPT table for the unique race of the person. person
145 cdm person ethnicity_concept_id Yes INTEGER A foreign key that refers to the standard concept identifier in the Standardized Vocabularies for the ethnicity of the person. person
146 cdm person location_id No INTEGER A foreign key to the place of residency for the person in the location table, where the detailed address information is stored. person
147 cdm person provider_id No INTEGER A foreign key to the primary care provider the person is seeing in the provider table. person
148 cdm person care_site_id No INTEGER A foreign key to the site of primary care in the care_site table, where the details of the care site are stored. person
149 cdm person person_source_value No VARCHAR(50) An (encrypted) key derived from the person identifier in the source data. This is necessary when a use case requires a link back to the person data at the source dataset. person
150 cdm person gender_source_value No VARCHAR(50) The source code for the gender of the person as it appears in the source data. The person’s gender is mapped to a standard gender concept in the Standardized Vocabularies the original value is stored here for reference. person
151 cdm person gender_source_concept_id No INTEGER A foreign key to the gender concept that refers to the code used in the source. person
152 cdm person race_source_value No VARCHAR(50) The source code for the race of the person as it appears in the source data. The person race is mapped to a standard race concept in the Standardized Vocabularies and the original value is stored here for reference. person
153 cdm person race_source_concept_id No INTEGER A foreign key to the race concept that refers to the code used in the source. person
154 cdm person ethnicity_source_value No VARCHAR(50) The source code for the ethnicity of the person as it appears in the source data. The person ethnicity is mapped to a standard ethnicity concept in the Standardized Vocabularies and the original code is, stored here for reference. person
155 cdm person ethnicity_source_concept_id No INTEGER A foreign key to the ethnicity concept that refers to the code used in the source. person
156 cdm procedure_occurrence procedure_occurrence_id Yes INTEGER A system-generated unique identifier for each Procedure Occurrence. procedure_occurrence
157 cdm procedure_occurrence person_id Yes INTEGER A foreign key identifier to the Person who is subjected to the Procedure. The demographic details of that Person are stored in the PERSON table. procedure_occurrence
158 cdm procedure_occurrence procedure_concept_id Yes INTEGER A foreign key that refers to a standard procedure Concept identifier in the Standardized Vocabularies. procedure_occurrence
159 cdm procedure_occurrence procedure_date Yes DATE The date on which the Procedure was performed. procedure_occurrence
160 cdm procedure_occurrence procedure_datetime No DATETIME The date and time on which the Procedure was performed. procedure_occurrence
161 cdm procedure_occurrence procedure_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of source data from which the procedure record is derived. procedure_occurrence
162 cdm procedure_occurrence modifier_concept_id No INTEGER A foreign key to a Standard Concept identifier for a modifier to the Procedure (e.g. bilateral) procedure_occurrence
163 cdm procedure_occurrence quantity No INTEGER The quantity of procedures ordered or administered. procedure_occurrence
164 cdm procedure_occurrence provider_id No INTEGER A foreign key to the provider in the PROVIDER table who was responsible for carrying out the procedure. procedure_occurrence
165 cdm procedure_occurrence visit_occurrence_id No INTEGER A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Procedure was carried out. procedure_occurrence
166 cdm procedure_occurrence visit_detail_id No INTEGER A foreign key to the Visit Detail in the VISIT_DETAIL table during which the Procedure was carried out. procedure_occurrence
167 cdm procedure_occurrence procedure_source_value No VARCHAR(50) The source code for the Procedure as it appears in the source data. This code is mapped to a standard procedure Concept in the Standardized Vocabularies and the original code is, stored here for reference. Procedure source codes are typically ICD-9-Proc, CPT-4, HCPCS or OPCS-4 codes. procedure_occurrence
168 cdm procedure_occurrence procedure_source_concept_id No INTEGER A foreign key to a Procedure Concept that refers to the code used in the source. procedure_occurrence
169 cdm procedure_occurrence modifier_source_value No VARCHAR(50) The source code for the qualifier as it appears in the source data. procedure_occurrence
170 cdm specimen specimen_id Yes INTEGER A unique identifier for each specimen. specimen
171 cdm specimen person_id Yes INTEGER A foreign key identifier to the Person for whom the Specimen is recorded. specimen
172 cdm specimen specimen_concept_id Yes INTEGER A foreign key referring to a Standard Concept identifier in the Standardized Vocabularies for the Specimen. specimen
173 cdm specimen specimen_type_concept_id Yes INTEGER A foreign key referring to the Concept identifier in the Standardized Vocabularies reflecting the system of record from which the Specimen was represented in the source data. specimen
174 cdm specimen specimen_date Yes DATE The date the specimen was obtained from the Person. specimen
175 cdm specimen specimen_datetime No DATETIME The date and time on the date when the Specimen was obtained from the person. specimen
176 cdm specimen quantity No FLOAT The amount of specimen collection from the person during the sampling procedure. specimen
177 cdm specimen unit_concept_id No INTEGER A foreign key to a Standard Concept identifier for the Unit associated with the numeric quantity of the Specimen collection. specimen
178 cdm specimen anatomic_site_concept_id No INTEGER A foreign key to a Standard Concept identifier for the anatomic location of specimen collection. specimen
179 cdm specimen disease_status_concept_id No INTEGER A foreign key to a Standard Concept identifier for the Disease Status of specimen collection. specimen
180 cdm specimen specimen_source_id No VARCHAR(50) The Specimen identifier as it appears in the source data. specimen
181 cdm specimen specimen_source_value No VARCHAR(50) The Specimen value as it appears in the source data. This value is mapped to a Standard Concept in the Standardized Vocabularies and the original code is, stored here for reference. specimen
182 cdm specimen unit_source_value No VARCHAR(50) The information about the Unit as detailed in the source. specimen
183 cdm specimen anatomic_site_source_value No VARCHAR(50) The information about the anatomic site as detailed in the source. specimen
184 cdm specimen disease_status_source_value No VARCHAR(50) The information about the disease status as detailed in the source. specimen
185 cdm visit_detail visit_detail_id Yes INTEGER A unique identifier for each Person's visit or encounter at a healthcare provider. visit_detail
186 cdm visit_detail person_id Yes INTEGER A foreign key identifier to the Person for whom the visit is recorded. The demographic details of that Person are stored in the PERSON table. visit_detail
187 cdm visit_detail visit_concept_id Yes INTEGER A foreign key that refers to a visit Concept identifier in the Standardized Vocabularies. visit_detail
188 cdm visit_detail visit_start_date Yes DATE The start date of the visit. visit_detail
189 cdm visit_detail visit_start_datetime No DATETIME The date and time of the visit started. visit_detail
190 cdm visit_detail visit_end_date Yes DATE The end date of the visit. If this is a one-day visit the end date should match the start date. visit_detail
191 cdm visit_detail visit_end_datetime No DATETIME The date and time of the visit end. visit_detail
192 cdm visit_detail visit_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of source data from which the visit record is derived. visit_detail
193 cdm visit_detail provider_id No INTEGER A foreign key to the provider in the provider table who was associated with the visit. visit_detail
194 cdm visit_detail care_site_id No INTEGER A foreign key to the care site in the care site table that was visited. visit_detail
195 cdm visit_detail visit_source_value No STRING(50) The source code for the visit as it appears in the source data. visit_detail
196 cdm visit_detail visit_source_concept_id No INTEGER A foreign key to a Concept that refers to the code used in the source. visit_detail
197 cdm visit_detail admitting_source_value Varchar(50) NO The source code for the admitting source as it appears in the source data. visit_detail
198 cdm visit_detail admitting_source_concept_id Integer NO A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the admitting source for a visit. visit_detail
199 cdm visit_detail discharge_to_source_value Varchar(50) NO The source code for the discharge disposition as it appears in the source data. visit_detail
200 cdm visit_detail discharge_to_concept_id Integer NO A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the discharge disposition for a visit. visit_detail
201 cdm visit_detail preceding_visit_detail_id Integer NO A foreign key to the VISIT_DETAIL table of the visit immediately preceding this visit visit_detail
202 cdm visit_detail visit_detail_parent_id Integer NO A foreign key to the VISIT_DETAIL table record to represent the immediate parent visit-detail record. visit_detail
203 cdm visit_detail visit_occurrence_id Integer YES A foreign key that refers to the record in the VISIT_OCCURRENCE table. This is a required field, because for every visit_detail is a child of visit_occurrence and cannot exist without a corresponding parent record in visit_occurrence. visit_detail
204 cdm visit_occurrence visit_occurrence_id Yes INTEGER A unique identifier for each Person's visit or encounter at a healthcare provider. visit_occurrence
205 cdm visit_occurrence person_id Yes INTEGER A foreign key identifier to the Person for whom the visit is recorded. The demographic details of that Person are stored in the PERSON table. visit_occurrence
206 cdm visit_occurrence visit_concept_id Yes INTEGER A foreign key that refers to a visit Concept identifier in the Standardized Vocabularies. visit_occurrence
207 cdm visit_occurrence visit_start_date Yes DATE The start date of the visit. visit_occurrence
208 cdm visit_occurrence visit_start_datetime No DATETIME The date and time of the visit started. visit_occurrence
209 cdm visit_occurrence visit_end_date Yes DATE The end date of the visit. If this is a one-day visit the end date should match the start date. visit_occurrence
210 cdm visit_occurrence visit_end_datetime No DATETIME The date and time of the visit end. visit_occurrence
211 cdm visit_occurrence visit_type_concept_id Yes INTEGER A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the type of source data from which the visit record is derived. visit_occurrence
212 cdm visit_occurrence provider_id No INTEGER A foreign key to the provider in the provider table who was associated with the visit. visit_occurrence
213 cdm visit_occurrence care_site_id No INTEGER A foreign key to the care site in the care site table that was visited. visit_occurrence
214 cdm visit_occurrence visit_source_value No VARCHAR(50) The source code for the visit as it appears in the source data. visit_occurrence
215 cdm visit_occurrence visit_source_concept_id No INTEGER A foreign key to a Concept that refers to the code used in the source. visit_occurrence
216 cdm visit_occurrence admitting_source_concept_id integer NO A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the admitting source for a visit. visit_occurrence
217 cdm visit_occurrence admitting_source_value varchar(50) NO The source code for the admitting source as it appears in the source data. visit_occurrence
218 cdm visit_occurrence discharge_to_concept_id integer NO A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the discharge disposition for a visit. visit_occurrence
219 cdm visit_occurrence discharge_to_source_value varchar(50) NO The source code for the discharge disposition as it appears in the source data. visit_occurrence
220 cdm visit_occurrence preceding_visit_occurrence_id integer NO A foreign key to the VISIT_OCCURRENCE table of the visit immediately preceding this visit visit_occurrence
221 results cohort cohort_definition_id Yes INTEGER A foreign key to a record in the COHORT_DEFINITION table containing relevant Cohort Definition information. cohort
222 results cohort subject_id Yes INTEGER A foreign key to the subject in the cohort. These could be referring to records in the PERSON, PROVIDER, VISIT_OCCURRENCE table. cohort
223 results cohort cohort_start_date Yes DATE The date when the Cohort Definition criteria for the Person, Provider or Visit first match. cohort
224 results cohort cohort_end_date Yes DATE The date when the Cohort Definition criteria for the Person, Provider or Visit no longer match or the Cohort membership was terminated. cohort
225 results cohort_attribute cohort_definition_id Yes INTEGER A foreign key to a record in the [COHORT_DEFINITION](https://github.com/OHDSI/CommonDataModel/wiki/COHORT_DEFINITION) table containing relevant Cohort Definition information. cohort_attribute
226 results cohort_attribute subject_id Yes INTEGER A foreign key to the subject in the Cohort. These could be referring to records in the PERSON, PROVIDER, VISIT_OCCURRENCE table. cohort_attribute
227 results cohort_attribute cohort_start_date Yes DATE The date when the Cohort Definition criteria for the Person, Provider or Visit first match. cohort_attribute
228 results cohort_attribute cohort_end_date Yes DATE The date when the Cohort Definition criteria for the Person, Provider or Visit no longer match or the Cohort membership was terminated. cohort_attribute
229 results cohort_attribute attribute_definition_id Yes INTEGER A foreign key to a record in the [ATTRIBUTE_DEFINITION](https://github.com/OHDSI/CommonDataModel/wiki/ATTRIBUTE_DEFINITION) table containing relevant Attribute Definition information. cohort_attribute
230 results cohort_attribute value_as_number No FLOAT The attribute result stored as a number. This is applicable to attributes where the result is expressed as a numeric value. cohort_attribute
231 results cohort_attribute value_as_concept_id No INTEGER The attribute result stored as a Concept ID. This is applicable to attributes where the result is expressed as a categorical value. cohort_attribute
232 cdm condition_era condition_era_id Yes INTEGER A unique identifier for each Condition Era. condition_era
233 cdm condition_era person_id Yes INTEGER A foreign key identifier to the Person who is experiencing the Condition during the Condition Era. The demographic details of that Person are stored in the PERSON table. condition_era
234 cdm condition_era condition_concept_id Yes INTEGER A foreign key that refers to a standard Condition Concept identifier in the Standardized Vocabularies. condition_era
235 cdm condition_era condition_era_start_date Yes DATE The start date for the Condition Era constructed from the individual instances of Condition Occurrences. It is the start date of the very first chronologically recorded instance of the condition. condition_era
236 cdm condition_era condition_era_end_date Yes DATE The end date for the Condition Era constructed from the individual instances of Condition Occurrences. It is the end date of the final continuously recorded instance of the Condition. condition_era
237 cdm condition_era condition_occurrence_count No INTEGER The number of individual Condition Occurrences used to construct the condition era. condition_era
238 cdm dose_era dose_era_id Yes INTEGER A unique identifier for each Dose Era. dose_era
239 cdm dose_era person_id Yes INTEGER A foreign key identifier to the Person who is subjected to the drug during the drug era. The demographic details of that Person are stored in the PERSON table. dose_era
240 cdm dose_era drug_concept_id Yes INTEGER A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the active Ingredient Concept. dose_era
241 cdm dose_era unit_concept_id Yes INTEGER A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the unit concept. dose_era
242 cdm dose_era dose_value Yes FLOAT The numeric value of the dose. dose_era
243 cdm dose_era dose_era_start_date Yes DATE The start date for the drug era constructed from the individual instances of drug exposures. It is the start date of the very first chronologically recorded instance of utilization of a drug. dose_era
244 cdm dose_era dose_era_end_date Yes DATE The end date for the drug era constructed from the individual instance of drug exposures. It is the end date of the final continuously recorded instance of utilization of a drug. dose_era
245 cdm drug_era drug_era_id Yes INTEGER A unique identifier for each Drug Era. drug_era
246 cdm drug_era person_id Yes INTEGER A foreign key identifier to the Person who is subjected to the Drug during the fDrug Era. The demographic details of that Person are stored in the PERSON table. drug_era
247 cdm drug_era drug_concept_id Yes INTEGER A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies for the Ingredient Concept. drug_era
248 cdm drug_era drug_era_start_date Yes DATE The start date for the Drug Era constructed from the individual instances of Drug Exposures. It is the start date of the very first chronologically recorded instance of conutilization of a Drug. drug_era
249 cdm drug_era drug_era_end_date Yes DATE The end date for the drug era constructed from the individual instance of drug exposures. It is the end date of the final continuously recorded instance of utilization of a drug. drug_era
250 cdm drug_era drug_exposure_count No INTEGER The number of individual Drug Exposure occurrences used to construct the Drug Era. drug_era
251 cdm drug_era gap_days No INTEGER The number of days that are not covered by DRUG_EXPOSURE records that were used to make up the era record. drug_era
252 cdm cost cost_id Yes INTEGER A unique identifier for each COST record. cost
253 cdm cost cost_event_id Yes INTEGER A foreign key identifier to the event (e.g. Measurement, Procedure, Visit, Drug Exposure, etc) record for which cost data are recorded. cost
254 cdm cost cost_domain_id Yes VARCHAR(20) The concept representing the domain of the cost event, from which the corresponding table can be inferred that contains the entity for which cost information is recorded. cost
255 cdm cost cost_type_concept_id Yes INTEGER A foreign key identifier to a concept in the CONCEPT table for the provenance or the source of the COST data: Calculated from insurance claim information, provider revenue, calculated from cost-to-charge ratio, reported from accounting database, etc. cost
256 cdm cost currency_concept_id No INTEGER A foreign key identifier to the concept representing the 3-letter code used to delineate international currencies, such as USD for US Dollar. cost
257 cdm cost total_charge No FLOAT The total amount charged by some provider of goods or services (e.g. hospital, physician pharmacy, dme provider) to payers (insurance companies, the patient). cost
258 cdm cost total_cost No FLOAT The cost incurred by the provider of goods or services. cost
259 cdm cost total_paid No FLOAT The total amount actually paid from all payers for goods or services of the provider. cost
260 cdm cost paid_by_payer No FLOAT The amount paid by the Payer for the goods or services. cost
261 cdm cost paid_by_patient No FLOAT The total amount paid by the Person as a share of the expenses. cost
262 cdm cost paid_patient_copay No FLOAT The amount paid by the Person as a fixed contribution to the expenses. cost
263 cdm cost paid_patient_coinsurance No FLOAT The amount paid by the Person as a joint assumption of risk. Typically, this is a percentage of the expenses defined by the Payer Plan after the Person's deductible is exceeded. cost
264 cdm cost paid_patient_deductible No FLOAT The amount paid by the Person that is counted toward the deductible defined by the Payer Plan. paid_patient_deductible does contribute to the paid_by_patient variable. cost
265 cdm cost paid_by_primary No FLOAT The amount paid by a primary Payer through the coordination of benefits. cost
266 cdm cost paid_ingredient_cost No FLOAT The amount paid by the Payer to a pharmacy for the drug, excluding the amount paid for dispensing the drug. paid_ingredient_cost contributes to the paid_by_payer field if this field is populated with a nonzero value. cost
267 cdm cost paid_dispensing_fee No FLOAT The amount paid by the Payer to a pharmacy for dispensing a drug, excluding the amount paid for the drug ingredient. paid_dispensing_fee contributes to the paid_by_payer field if this field is populated with a nonzero value. cost
268 cdm cost payer_plan_period_id No INTEGER A foreign key to the PAYER_PLAN_PERIOD table, where the details of the Payer, Plan and Family are stored. Record the payer_plan_id that relates to the payer who contributed to the paid_by_payer field. cost
269 cdm cost amount_allowed No FLOAT The contracted amount agreed between the payer and provider. cost
270 cdm cost revenue_code_concept_id No INTEGER A foreign key referring to a Standard Concept ID in the Standardized Vocabularies for Revenue codes. cost
271 cdm cost revenue_code_source_value No VARCHAR(50) The source code for the Revenue code as it appears in the source data, stored here for reference. cost
272 cdm cost drg_concept_id No INTEGER A foreign key to the predefined concept in the DRG Vocabulary reflecting the DRG for a visit. cost
273 cdm cost drg_source_value No VARCHAR(3) The 3-digit DRG source code as it appears in the source data. cost
274 cdm payer_plan_period payer_plan_period_id Yes INTEGER A identifier for each unique combination of payer, plan, family code and time span. payer_plan_period
275 cdm payer_plan_period person_id Yes INTEGER A foreign key identifier to the Person covered by the payer. The demographic details of that Person are stored in the PERSON table. payer_plan_period
276 cdm payer_plan_period payer_plan_period_start_date Yes DATE The start date of the payer plan period. payer_plan_period
277 cdm payer_plan_period payer_plan_period_end_date Yes DATE The end date of the payer plan period. payer_plan_period
278 cdm payer_plan_period payer_concept_id No INTEGER A foreign key that refers to a standard Payer concept identifier in the Standarized Vocabularies payer_plan_period
279 cdm payer_plan_period payer_source_value No VARCHAR(50) The source code for the payer as it appears in the source data. payer_plan_period
280 cdm payer_plan_period payer_source_concept_id No INTEGER A foreign key to a payer concept that refers to the code used in the source. payer_plan_period
281 cdm payer_plan_period plan_concept_id No INTEGER A foreign key that refers to a standard plan concept identifier that represents the health benefit plan in the Standardized Vocabularies payer_plan_period
282 cdm payer_plan_period plan_source_value No VARCHAR(50) The source code for the Person's health benefit plan as it appears in the source data. payer_plan_period
283 cdm payer_plan_period plan_source_concept_id No INTEGER A foreign key to a plan concept that refers to the plan code used in the source data. payer_plan_period
284 cdm payer_plan_period sponsor_concept_id No INTEGER A foreign key that refers to a concept identifier that represents the sponsor in the Standardized Vocabularies. payer_plan_period
285 cdm payer_plan_period sponsor_source_value No VARCHAR(50) The source code for the Person's sponsor of the health plan as it appears in the source data. payer_plan_period
286 cdm payer_plan_period sponsor_source_concept_id No INTEGER A foreign key to a sponsor concept that refers to the sponsor code used in the source data. payer_plan_period
287 cdm payer_plan_period family_source_value No VARCHAR(50) The source code for the Person's family as it appears in the source data. payer_plan_period
288 cdm payer_plan_period stop_reason_concept_id No INTEGER A foreign key that refers to a standard termination reason that represents the reason for the termination in the Standardized Vocabularies. payer_plan_period
289 cdm payer_plan_period stop_reason_source_value No VARCHAR(50) The reason for stop-coverage as it appears in the source data. payer_plan_period
290 cdm payer_plan_period stop_reason_source_concept_id No INTEGER A foreign key to a stop-coverage concept that refers to the code used in the source. payer_plan_period
291 cdm care_site care_site_id Yes INTEGER A unique identifier for each Care Site. care_site
292 cdm care_site care_site_name No VARCHAR(255) The verbatim description or name of the Care Site as in data source care_site
293 cdm care_site place_of_service_concept_id No INTEGER A foreign key that refers to a Place of Service Concept ID in the Standardized Vocabularies. care_site
294 cdm care_site location_id No INTEGER A foreign key to the geographic Location in the LOCATION table, where the detailed address information is stored. care_site
295 cdm care_site care_site_source_value No VARCHAR(50) The identifier for the Care Site in the source data, stored here for reference. care_site
296 cdm care_site place_of_service_source_value No VARCHAR(50) The source code for the Place of Service as it appears in the source data, stored here for reference. care_site
297 cdm location location_id Yes INTEGER A unique identifier for each geographic location. location
298 cdm location address_1 No VARCHAR(50) The address field 1, typically used for the street address, as it appears in the source data. location
299 cdm location address_2 No VARCHAR(50) The address field 2, typically used for additional detail such as buildings, suites, floors, as it appears in the source data. location
300 cdm location city No VARCHAR(50) The city field as it appears in the source data. location
301 cdm location state No VARCHAR(2) The state field as it appears in the source data. location
302 cdm location zip No VARCHAR(9) The zip or postal code. location
303 cdm location county No VARCHAR(20) The county. location
304 cdm location location_source_value No VARCHAR(50) The verbatim information that is used to uniquely identify the location as it appears in the source data. location
305 cdm provider provider_id Yes INTEGER A unique identifier for each Provider. provider
306 cdm provider provider_name No VARCHAR(255) A description of the Provider. provider
307 cdm provider npi No VARCHAR(20) The National Provider Identifier (NPI) of the provider. provider
308 cdm provider dea No VARCHAR(20) The Drug Enforcement Administration (DEA) number of the provider. provider
309 cdm provider specialty_concept_id No INTEGER A foreign key to a Standard Specialty Concept ID in the Standardized Vocabularies. provider
310 cdm provider care_site_id No INTEGER A foreign key to the main Care Site where the provider is practicing. provider
311 cdm provider year_of_birth No INTEGER The year of birth of the Provider. provider
312 cdm provider gender_concept_id No INTEGER The gender of the Provider. provider
313 cdm provider provider_source_value No VARCHAR(50) The identifier used for the Provider in the source data, stored here for reference. provider
314 cdm provider specialty_source_value No VARCHAR(50) The source code for the Provider specialty as it appears in the source data, stored here for reference. provider
315 cdm provider specialty_source_concept_id No INTEGER A foreign key to a Concept that refers to the code used in the source. provider
316 cdm provider gender_source_value No VARCHAR(50) The gender code for the Provider as it appears in the source data, stored here for reference. provider
317 cdm provider gender_source_concept_id No INTEGER A foreign key to a Concept that refers to the code used in the source. provider
318 cdm cdm_source cdm_source_name Yes VARCHAR(255) The full name of the source cdm_source
319 cdm cdm_source cdm_source_abbreviation No VARCHAR(25) An abbreviation of the name cdm_source
320 cdm cdm_source cdm_holder No VARCHAR(255) The name of the organization responsible for the development of the CDM instance cdm_source
321 cdm cdm_source source_description No CLOB A description of the source data origin and purpose for collection. The description may contain a summary of the period of time that is expected to be covered by this dataset. cdm_source
322 cdm cdm_source source_documentation_reference No VARCHAR(255) URL or other external reference to location of source documentation cdm_source
323 cdm cdm_source cdm_etl _reference No VARCHAR(255) URL or other external reference to location of ETL specification documentation and ETL source code cdm_source
324 cdm cdm_source source_release_date No DATE The date for which the source data are most current, such as the last day of data capture cdm_source
325 cdm cdm_source cdm_release_date No DATE The date when the CDM was instantiated cdm_source
326 cdm cdm_source cdm_version No VARCHAR(10) The version of CDM used cdm_source
327 cdm cdm_source vocabulary_version No VARCHAR(20) The version of the vocabulary used cdm_source
328 cdm metadata metadata_concept_id Yes INTEGER A foreign key that refers to a Standard Metadata Concept identifier in the Standardized Vocabularies. metadata
329 cdm metadata metadata_type_concept_id Yes INTEGER A foreign key that refers to a Standard Type Concept identifier in the Standardized Vocabularies. metadata
330 cdm metadata name Yes VARCHAR(250) The name of the Concept stored in metadata_concept_id or a description of the data being stored. metadata
331 cdm metadata value_as_string No NVARCHAR The metadata value stored as a string. metadata
332 cdm metadata value_as_concept_id No INTEGER A foreign key to a metadata value stored as a Concept ID. metadata
333 cdm metadata metadata date No DATE The date associated with the metadata metadata
334 cdm metadata metadata_datetime No DATETIME The date and time associated with the metadata metadata
335 cdm metadata attribute_definition_id Yes INTEGER A unique identifier for each Attribute. attribute_definition
336 cdm metadata attribute_name Yes VARCHAR(255) A short description of the Attribute. attribute_definition
337 cdm metadata attribute_description No VARCHAR(MAX) A complete description of the Attribute definition attribute_definition
338 cdm metadata attribute_type_concept_id Yes INTEGER Type defining what kind of Attribute Definition the record represents and how the syntax may be executed attribute_definition
339 cdm metadata attribute_syntax No VARCHAR(MAX) Syntax or code to operationalize the Attribute definition attribute_definition
340 results cohort_definition cohort_definition_id Yes INTEGER A unique identifier for each Cohort. cohort_definition
341 results cohort_definition cohort_definition_name Yes VARCHAR(255) A short description of the Cohort. cohort_definition
342 results cohort_definition cohort_definition_description No VARCHAR(MAX) A complete description of the Cohort definition cohort_definition
343 results cohort_definition definition_type_concept_id Yes INTEGER Type defining what kind of Cohort Definition the record represents and how the syntax may be executed cohort_definition
344 results cohort_definition cohort_definition_syntax No VARCHAR(MAX) Syntax or code to operationalize the Cohort definition cohort_definition
345 results cohort_definition subject_concept_id Yes INTEGER A foreign key to the Concept to which defines the domain of subjects that are members of the cohort (e.g., Person, Provider, Visit). cohort_definition
346 results cohort_definition cohort_instantiation_date No DATE A date to indicate when the Cohort was instantiated in the COHORT table cohort_definition
347 cdm concept concept_id Yes INTEGER A unique identifier for each Concept across all domains. concept
348 cdm concept concept_name Yes VARCHAR(255) An unambiguous, meaningful and descriptive name for the Concept. concept
349 cdm concept domain_id Yes VARCHAR(20) A foreign key to the [DOMAIN](https://github.com/OHDSI/CommonDataModel/wiki/DOMAIN) table the Concept belongs to. concept
350 cdm concept vocabulary_id Yes VARCHAR(20) A foreign key to the [VOCABULARY](https://github.com/OHDSI/CommonDataModel/wiki/VOCABULARY) table indicating from which source the Concept has been adapted. concept
351 cdm concept concept_class_id Yes VARCHAR(20) The attribute or concept class of the Concept. Examples are 'Clinical Drug', 'Ingredient', 'Clinical Finding' etc. concept
352 cdm concept standard_concept No VARCHAR(1) This flag determines where a Concept is a Standard Concept, i.e. is used in the data, a Classification Concept, or a non-standard Source Concept. The allowables values are 'S' (Standard Concept) and 'C' (Classification Concept), otherwise the content is NULL. concept
353 cdm concept concept_code Yes VARCHAR(50) The concept code represents the identifier of the Concept in the source vocabulary, such as SNOMED-CT concept IDs, RxNorm RXCUIs etc. Note that concept codes are not unique across vocabularies. concept
354 cdm concept valid_start_date Yes DATE The date when the Concept was first recorded. The default value is 1-Jan-1970, meaning, the Concept has no (known) date of inception. concept
355 cdm concept valid_end_date Yes DATE The date when the Concept became invalid because it was deleted or superseded (updated) by a new concept. The default value is 31-Dec-2099, meaning, the Concept is valid until it becomes deprecated. concept
356 cdm concept invalid_reason No VARCHAR(1) Reason the Concept was invalidated. Possible values are D (deleted), U (replaced with an update) or NULL when valid_end_date has the default value. concept
357 cdm concept_ancestor ancestor_concept_id Yes INTEGER A foreign key to the concept in the concept table for the higher-level concept that forms the ancestor in the relationship. concept_ancestor
358 cdm concept_ancestor descendant_concept_id Yes INTEGER A foreign key to the concept in the concept table for the lower-level concept that forms the descendant in the relationship. concept_ancestor
359 cdm concept_ancestor min_levels_of_separation Yes INTEGER The minimum separation in number of levels of hierarchy between ancestor and descendant concepts. This is an attribute that is used to simplify hierarchic analysis. concept_ancestor
360 cdm concept_ancestor max_levels_of_separation Yes INTEGER The maximum separation in number of levels of hierarchy between ancestor and descendant concepts. This is an attribute that is used to simplify hierarchic analysis. concept_ancestor
361 cdm concept_class concept_class_id Yes VARCHAR(20) A unique key for each class. concept_class
362 cdm concept_class concept_class_name Yes VARCHAR(255) The name describing the Concept Class, e.g. "Clinical Finding", "Ingredient", etc. concept_class
363 cdm concept_class concept_class_concept_id Yes INTEGER A foreign key that refers to an identifier in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table for the unique Concept Class the record belongs to. concept_class
364 cdm concept_relationship concept_id_1 Yes INTEGER A foreign key to a Concept in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table associated with the relationship. Relationships are directional, and this field represents the source concept designation. concept_relationship
365 cdm concept_relationship concept_id_2 Yes INTEGER A foreign key to a Concept in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table associated with the relationship. Relationships are directional, and this field represents the destination concept designation. concept_relationship
366 cdm concept_relationship relationship_id Yes VARCHAR(20) A unique identifier to the type or nature of the Relationship as defined in the [RELATIONSHIP](https://github.com/OHDSI/CommonDataModel/wiki/RELATIONSHIP) table. concept_relationship
367 cdm concept_relationship valid_start_date Yes DATE The date when the instance of the Concept Relationship is first recorded. concept_relationship
368 cdm concept_relationship valid_end_date Yes DATE The date when the Concept Relationship became invalid because it was deleted or superseded (updated) by a new relationship. Default value is 31-Dec-2099. concept_relationship
369 cdm concept_relationship invalid_reason No VARCHAR(1) Reason the relationship was invalidated. Possible values are 'D' (deleted), 'U' (replaced with an update) or NULL when valid_end_date has the default value. concept_relationship
370 cdm concept_synonym concept_id Yes INTEGER A foreign key to the Concept in the CONCEPT table. concept_synonym
371 cdm concept_synonym concept_synonym_name Yes VARCHAR(1000) The alternative name for the Concept. concept_synonym
372 cdm concept_synonym language_concept_id Yes INTEGER A foreign key to a Concept representing the language. concept_synonym
373 cdm domain domain_id Yes VARCHAR(20) A unique key for each domain. domain
374 cdm domain domain_name Yes VARCHAR(255) The name describing the Domain, e.g. "Condition", "Procedure", "Measurement" etc. domain
375 cdm domain domain_concept_id Yes INTEGER A foreign key that refers to an identifier in the [CONCEPT](https://github.com/OHDSI/CommonDataModel/wiki/CONCEPT) table for the unique Domain Concept the Domain record belongs to. domain
376 cdm drug_strength drug_concept_id Yes INTEGER A foreign key to the Concept in the CONCEPT table representing the identifier for Branded Drug or Clinical Drug Concept. drug_strength
377 cdm drug_strength ingredient_concept_id Yes INTEGER A foreign key to the Concept in the CONCEPT table, representing the identifier for drug Ingredient Concept contained within the drug product. drug_strength
378 cdm drug_strength amount_value No FLOAT The numeric value associated with the amount of active ingredient contained within the product. drug_strength
379 cdm drug_strength amount_unit_concept_id No INTEGER A foreign key to the Concept in the CONCEPT table representing the identifier for the Unit for the absolute amount of active ingredient. drug_strength
380 cdm drug_strength numerator_value No FLOAT The numeric value associated with the concentration of the active ingredient contained in the product drug_strength
381 cdm drug_strength numerator_unit_concept_id No INTEGER A foreign key to the Concept in the CONCEPT table representing the identifier for the numerator Unit for the concentration of active ingredient. drug_strength
382 cdm drug_strength denominator_value No FLOAT The amount of total liquid (or other divisible product, such as ointment, gel, spray, etc.). drug_strength
383 cdm drug_strength denominator_unit_concept_id No INTEGER A foreign key to the Concept in the CONCEPT table representing the identifier for the denominator Unit for the concentration of active ingredient. drug_strength
384 cdm drug_strength box_size No INTEGER The number of units of Clinical of Branded Drug, or Quantified Clinical or Branded Drug contained in a box as dispensed to the patient drug_strength
385 cdm drug_strength valid_start_date Yes DATE The date when the Concept was first recorded. The default value is 1-Jan-1970. drug_strength
386 cdm drug_strength valid_end_date Yes DATE The date when the concept became invalid because it was deleted or superseded (updated) by a new Concept. The default value is 31-Dec-2099. drug_strength
387 cdm drug_strength invalid_reason No VARCHAR(1) Reason the concept was invalidated. Possible values are 'D' (deleted), 'U' (replaced with an update) or NULL when valid_end_date has the default value. drug_strength
388 cdm relationship relationship_id Yes VARCHAR(20) The type of relationship captured by the relationship record. relationship
389 cdm relationship relationship_name Yes VARCHAR(255) The text that describes the relationship type. relationship
390 cdm relationship is_hierarchical Yes VARCHAR(1) Defines whether a relationship defines concepts into classes or hierarchies. Values are 1 for hierarchical relationship or 0 if not. relationship
391 cdm relationship defines_ancestry Yes VARCHAR(1) Defines whether a hierarchical relationship contributes to the concept_ancestor table. These are subsets of the hierarchical relationships. Valid values are 1 or 0. relationship
392 cdm relationship reverse_relationship_id Yes VARCHAR(20) The identifier for the relationship used to define the reverse relationship between two concepts. relationship
393 cdm relationship relationship_concept_id Yes INTEGER A foreign key that refers to an identifier in the CONCEPT table for the unique relationship concept. relationship
394 cdm source_to_concept_map source_code Yes VARCHAR(50) The source code being translated into a Standard Concept. source_to_concept_map
395 cdm source_to_concept_map source_concept_id Yes INTEGER A foreign key to the Source Concept that is being translated into a Standard Concept. source_to_concept_map
396 cdm source_to_concept_map source_vocabulary_id Yes VARCHAR(20) A foreign key to the VOCABULARY table defining the vocabulary of the source code that is being translated to a Standard Concept. source_to_concept_map
397 cdm source_to_concept_map source_code_description No VARCHAR(255) An optional description for the source code. This is included as a convenience to compare the description of the source code to the name of the concept. source_to_concept_map
398 cdm source_to_concept_map target_concept_id Yes INTEGER A foreign key to the target Concept to which the source code is being mapped. source_to_concept_map
399 cdm source_to_concept_map target_vocabulary_id Yes VARCHAR(20) A foreign key to the VOCABULARY table defining the vocabulary of the target Concept. source_to_concept_map
400 cdm source_to_concept_map valid_start_date Yes DATE The date when the mapping instance was first recorded. source_to_concept_map
401 cdm source_to_concept_map valid_end_date Yes DATE The date when the mapping instance became invalid because it was deleted or superseded (updated) by a new relationship. Default value is 31-Dec-2099. source_to_concept_map
402 cdm source_to_concept_map invalid_reason No VARCHAR(1) Reason the mapping instance was invalidated. Possible values are D (deleted), U (replaced with an update) or NULL when valid_end_date has the default value. source_to_concept_map
403 cdm vocabulary vocabulary_id Yes VARCHAR(20) A unique identifier for each Vocabulary, such as ICD9CM, SNOMED, Visit. vocabulary
404 cdm vocabulary vocabulary_name Yes VARCHAR(255) The name describing the vocabulary, for example "International Classification of Diseases, Ninth Revision, Clinical Modification, Volume 1 and 2 (NCHS)" etc. vocabulary
405 cdm vocabulary vocabulary_reference Yes VARCHAR(255) External reference to documentation or available download of the about the vocabulary. vocabulary
406 cdm vocabulary vocabulary_version Yes VARCHAR(255) Version of the Vocabulary as indicated in the source. vocabulary
407 cdm vocabulary vocabulary_concept_id Yes INTEGER A foreign key that refers to a standard concept identifier in the CONCEPT table for the Vocabulary the VOCABULARY record belongs to. vocabulary