OMOP/OMOP_CDM_v6_0.csv

1	field	required	type	description	table
2	cohort_definition_id	Yes	INTEGER	A foreign key to a record in the COHORT_DEFINITION table containing relevant Cohort Definition information.	cohort
3	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
4	cohort_start_date	Yes	DATE	The date when the Cohort Definition criteria for the Person, Provider or Visit first match.	cohort
5	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
6	cohort_definition_id	Yes	INTEGER	A unique identifier for each Cohort.	cohort_definition
7	cohort_definition_name	Yes	VARCHAR(255)	A short description of the Cohort.	cohort_definition
8	cohort_definition_description	No	VARCHAR(MAX)	A complete description of the Cohort definition	cohort_definition
9	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
10	cohort_definition_syntax	No	VARCHAR(MAX)	Syntax or code to operationalize the Cohort definition	cohort_definition
11	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
12	cohort_initiation_date	No	DATE	A date to indicate when the Cohort was initiated in the COHORT table	cohort_definition
13	condition_occurrence_id	Yes	BIGINT	A unique identifier for each Condition Occurrence event.	condition_occurrence
14	person_id	Yes	BIGINT	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
15	condition_concept_id	Yes	INTEGER	A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies belonging to the 'Condition' domain.	condition_occurrence
16	condition_start_date	No	DATE	The date when the instance of the Condition is recorded.	condition_occurrence
17	condition_start_datetime	Yes	DATETIME	The date and time when the instance of the Condition is recorded.	condition_occurrence
18	condition_end_date	No	DATE	The date when the instance of the Condition is considered to have ended.	condition_occurrence
19	condition_end_datetime	No	DATETIME	The date when the instance of the Condition is considered to have ended.	condition_occurrence
20	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. These belong to the 'Condition Type' vocabulary	condition_occurrence
21	condition_status_concept_id	Yes	INTEGER	A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies reflecting the point of care at which the Condition was diagnosed.	condition_occurrence
22	stop_reason	No	VARCHAR(20)	The reason that the Condition was no longer present, as indicated in the source data.	condition_occurrence
23	provider_id	No	INTEGER	A foreign key to the Provider in the PROVIDER table who was responsible for capturing (diagnosing) the Condition.	condition_occurrence
24	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
25	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
26	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
27	condition_source_concept_id	Yes	INTEGER	A foreign key to a Condition Concept that refers to the code used in the source.	condition_occurrence
28	condition_status_source_value	No	VARCHAR(50)	The source code for the condition status 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.	condition_occurrence
29	device_exposure_id	Yes	BIGINT	A system-generated unique identifier for each Device Exposure.	device_exposure
30	person_id	Yes	BIGINT	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
31	device_concept_id	Yes	INTEGER	A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies belonging to the 'Device' domain.	device_exposure
32	device_exposure_start_date	No	DATE	The date the Device or supply was applied or used.	device_exposure
33	device_exposure_start_datetime	Yes	DATETIME	The date and time the Device or supply was applied or used.	device_exposure
34	device_exposure_end_date	No	DATE	The date use of the Device or supply was ceased.	device_exposure
35	device_exposure_end_datetime	No	DATETIME	The date and time use of the Device or supply was ceased.	device_exposure
36	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 and belongs to the 'Device Type' domain.	device_exposure
37	unique_device_id	No	VARCHAR(50)	A UDI or equivalent identifying the instance of the Device used in the Person.	device_exposure
38	quantity	No	INTEGER	The number of individual Devices used in the exposure.	device_exposure
39	provider_id	No	INTEGER	A foreign key to the provider in the PROVIDER table who initiated or administered the Device.	device_exposure
40	visit_occurrence_id	No	INTEGER	A foreign key to the visit in the VISIT_OCCURRENCE table during which the Device was used.	device_exposure
41	visit_detail_id	No	INTEGER	A foreign key to the visit detail record in the VISIT_DETAIL table during which the Device was used.	device_exposure
42	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
43	device_source_concept_id	Yes	INTEGER	A foreign key to a Device Concept that refers to the code used in the source.	device_exposure
44	drug_exposure_id	Yes	BIGINT	A system-generated unique identifier for each Drug utilization event.	drug_exposure
45	person_id	Yes	BIGINT	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
46	drug_concept_id	Yes	INTEGER	A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies belonging to the 'Drug' domain.	drug_exposure
47	drug_exposure_start_date	No	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
48	drug_exposure_start_datetime	Yes	DATETIME	The start date and time for the current instance of Drug utilization. Valid entries include a start datetime of a prescription, the date and time a prescription was filled, or the date and time on which a Drug administration procedure was recorded.	drug_exposure
49	drug_exposure_end_date	No	DATE	The end date for the current instance of Drug utilization. Depending on different sources, it could be a known or an inferred date and denotes the last day at which the patient was still exposed to Drug.	drug_exposure
50	drug_exposure_end_datetime	No	DATETIME	The end date and time for the current instance of Drug utilization. Depending on different sources, it could be a known or an inferred date and time and denotes the last day at which the patient was still exposed to Drug.	drug_exposure
51	verbatim_end_date	No	DATE	The known end date of a drug_exposure as provided by the source.	drug_exposure
52	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 and belongs to the 'Drug Type' vocabulary.	drug_exposure
53	stop_reason	No	VARCHAR(20)	The reason the Drug was stopped. Reasons include regimen completed, changed, removed, etc.	drug_exposure
54	refills	No	INTEGER	The number of refills after the initial prescription. The initial prescription is not counted, values start with null.	drug_exposure
55	quantity	No	FLOAT	The quantity of drug as recorded in the original prescription or dispensing record.	drug_exposure
56	days_supply	No	INTEGER	The number of days of supply of the medication as prescribed. This reflects the intention of the provider for the length of exposure.	drug_exposure
57	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
58	route_concept_id	Yes	INTEGER	A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies reflecting the route of administration and belonging to the 'Route' domain.	drug_exposure
59	lot_number	No	VARCHAR(50)	An identifier assigned to a particular quantity or lot of Drug product from the manufacturer.	drug_exposure
60	provider_id	No	INTEGER	A foreign key to the provider in the PROVIDER table who initiated (prescribed or administered) the Drug Exposure.	drug_exposure
61	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
62	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
63	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
64	drug_source_concept_id	Yes	INTEGER	A foreign key to a Drug Concept that refers to the code used in the source.	drug_exposure
65	route_source_value	No	VARCHAR(50)	The information about the route of administration as detailed in the source.	drug_exposure
66	dose_unit_source_value	No	VARCHAR(50)	The information about the dose unit as detailed in the source.	drug_exposure
67	domain_concept_id_1	Yes	INTEGER	The concept representing the domain of fact one, from which the corresponding table can be inferred.	fact_relationship
68	fact_id_1	Yes	INTEGER	The unique identifier in the table corresponding to the domain of fact one.	fact_relationship
69	domain_concept_id_2	Yes	INTEGER	The concept representing the domain of fact two, from which the corresponding table can be inferred.	fact_relationship
70	fact_id_2	Yes	INTEGER	The unique identifier in the table corresponding to the domain of fact two.	fact_relationship
71	relationship_concept_id	Yes	INTEGER	A foreign key to a Standard Concept ID of relationship in the Standardized Vocabularies.	fact_relationship
72	measurement_id	Yes	INTEGER	A unique identifier for each Measurement.	measurement
73	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
74	measurement_concept_id	Yes	INTEGER	A foreign key to the standard measurement concept identifier in the Standardized Vocabularies. These belong to the 'Measurement' domain, but could overlap with the 'Observation' domain (see #3 below).	measurement
75	measurement_date	No	DATE	The date of the Measurement.	measurement
76	measurement_datetime	Yes	DATETIME	The date and time of the Measurement. Some database systems don't have a datatype of time. To accommodate 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
77	measurement_time	No	VARCHAR(10)	The time of the Measurement. This is present for backwards compatibility and will be deprecated in an upcoming version	measurement
78	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. These belong to the 'Meas Type' vocabulary	measurement
79	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 <, <=, =, >=, > and these concepts belong to the 'Meas Value Operator' domain.	measurement
80	value_as_number	No	FLOAT	A Measurement result where the result is expressed as a numeric value.	measurement
81	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.). These belong to the 'Meas Value' domain	measurement
82	unit_concept_id	No	INTEGER	A foreign key to a Standard Concept ID of Measurement Units in the Standardized Vocabularies that belong to the 'Unit' domain.	measurement
83	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
84	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
85	provider_id	No	INTEGER	A foreign key to the provider in the PROVIDER table who was responsible for initiating or obtaining the measurement.	measurement
86	visit_occurrence_id	No	INTEGER	A foreign key to the Visit in the VISIT_OCCURRENCE table during which the Measurement was recorded.	measurement
87	visit_detail_id	No	INTEGER	A foreign key to the Visit Detail in the VISIT_DETAIL table during which the Measurement was recorded.	measurement
88	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
89	measurement_source_concept_id	Yes	INTEGER	A foreign key to a Concept in the Standard Vocabularies that refers to the code used in the source.	measurement
90	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
91	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
92	note_id	Yes	INTEGER	A unique identifier for each note.	note
93	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
94	note_event_id	No	INTEGER	A foreign key identifier to the event (e.g. Measurement, Procedure, Visit, Drug Exposure, etc) record during which the note was recorded.	note
95	note_event_field_concept_id	No	INTEGER	A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the field to which the note_event_id is referring.	note
96	note_date	No	DATE	The date the note was recorded.	note
97	note_datetime	Yes	DATETIME	The date and time the note was recorded.	note
98	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. These belong to the 'Note Type' vocabulary	note
99	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
100	note_title	No	VARCHAR(250)	The title of the Note as it appears in the source.	note
101	note_text	Yes	VARCHAR(MAX)	The content of the Note.	note
102	encoding_concept_id	Yes	INTEGER	A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the note character encoding type	note
103	language_concept_id	Yes	INTEGER	A foreign key to the predefined Concept in the Standardized Vocabularies reflecting the language of the note	note
104	provider_id	No	INTEGER	A foreign key to the Provider in the PROVIDER table who took the Note.	note
105	visit_occurrence_id	No	INTEGER	A foreign key to the Visit in the VISIT_OCCURRENCE table when the Note was taken.	note
106	visit_detail_id	No	INTEGER	A foreign key to the Visit in the VISIT_DETAIL table when the Note was taken.	note
107	note_source_value	No	VARCHAR(50)	The source value associated with the origin of the Note	note
108	note_nlp_id	Yes	INTEGER	A unique identifier for each term extracted from a note.	note_nlp
109	note_id	Yes	INTEGER	A foreign key to the Note table note the term was	note_nlp
110	section_concept_id	Yes	INTEGER	A foreign key to the predefined Concept in the Standardized Vocabularies representing the section of the extracted term.	note_nlp
111	snippet	No	VARCHAR(250)	A small window of text surrounding the term.	note_nlp
112	offset	No	VARCHAR(50)	Character offset of the extracted term in the input note.	note_nlp
113	lexical_variant	Yes	VARCHAR(250)	Raw text extracted from the NLP tool.	note_nlp
114	note_nlp_concept_id	Yes	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
115	note_nlp_source_concept_id	Yes	INTEGER	A foreign key to a Concept that refers to the code in the source vocabulary used by the NLP system	note_nlp
116	nlp_system	No	VARCHAR(250)	Name and version of the NLP system that extracted the term.Useful for data provenance.	note_nlp
117	nlp_date	Yes	DATE	The date of the note processing.Useful for data provenance.	note_nlp
118	nlp_datetime	No	DATETIME	The date and time of the note processing. Useful for data provenance.	note_nlp
119	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
120	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
121	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
122	observation_id	Yes	INTEGER	A unique identifier for each observation.	observation
123	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
124	observation_concept_id	Yes	INTEGER	A foreign key to the standard observation concept identifier in the Standardized Vocabularies.	observation
125	observation_date	No	DATE	The date of the observation.	observation
126	observation_datetime	Yes	DATETIME	The date and time of the observation.	observation
127	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
128	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
129	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
130	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
131	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
132	unit_concept_id	No	INTEGER	A foreign key to a Standard Concept ID of measurement units in the Standardized Vocabularies.	observation
133	provider_id	No	INTEGER	A foreign key to the provider in the PROVIDER table who was responsible for making the observation.	observation
134	visit_occurrence_id	No	INTEGER	A foreign key to the visit in the VISIT_OCCURRENCE table during which the observation was recorded.	observation
135	visit_detail_id	No	INTEGER	A foreign key to the visit in the VISIT_DETAIL table during which the observation was recorded.	observation
136	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
137	observation_source_concept_id	Yes	INTEGER	A foreign key to a Concept that refers to the code used in the source.	observation
138	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
139	qualifier_source_value	No	VARCHAR(50)	The source value associated with a qualifier to characterize the observation	observation
140	observation_event_id	No	INTEGER	A foreign key to an event table (e.g., PROCEDURE_OCCURRENCE_ID).	observation
141	obs_event_field_concept_id	Yes	INTEGER	A foreign key that refers to a Standard Concept identifier in the Standardized Vocabularies referring to the field represented in the OBSERVATION_EVENT_ID.	observation
142	value_as_datetime	No	INTEGER	The observation result stored as a datetime value. This is applicable to observations where the result is expressed as a point in time.	observation
143	observation_period_id	Yes	INTEGER	A unique identifier for each observation period.	observation_period
144	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
145	observation_period_start_date	Yes	DATE	The start date of the observation period for which data are available from the data source.	observation_period
146	observation_period_end_date	Yes	DATE	The end date of the observation period for which data are available from the data source.	observation_period
147	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, belonging to the 'Obs Period Type' vocabulary	observation_period
148	person_id	Yes	INTEGER	A unique identifier for each person.	person
149	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
150	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
151	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
152	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
153	birth_datetime	No	DATETIME	The date and time of birth of the person.	person
154	death_datetime	No	DATETIME	The date and time of death of the person.	person
155	race_concept_id	Yes	INTEGER	A foreign key that refers to an identifier in the CONCEPT table for the unique race of the person, belonging to the 'Race' vocabulary.	person
156	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, belonging to the 'Ethnicity' vocabulary.	person
157	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
158	provider_id	No	INTEGER	A foreign key to the primary care provider the person is seeing in the provider table.	person
159	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
160	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
161	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
162	gender_source_concept_id	Yes	INTEGER	A foreign key to the gender concept that refers to the code used in the source.	person
163	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
164	race_source_concept_id	Yes	INTEGER	A foreign key to the race concept that refers to the code used in the source.	person
165	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
166	ethnicity_source_concept_id	Yes	INTEGER	A foreign key to the ethnicity concept that refers to the code used in the source.	person
167	procedure_occurrence_id	Yes	INTEGER	A system-generated unique identifier for each Procedure Occurrence.	procedure_occurrence
168	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
169	procedure_concept_id	Yes	INTEGER	A foreign key that refers to a standard procedure Concept identifier in the Standardized Vocabularies.	procedure_occurrence
170	procedure_date	No	DATE	The date on which the Procedure was performed.	procedure_occurrence
171	procedure_datetime	Yes	DATETIME	The date and time on which the Procedure was performed.	procedure_occurrence
172	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, belonging to the 'Procedure Type' vocabulary.	procedure_occurrence
173	modifier_concept_id	Yes	INTEGER	A foreign key to a Standard Concept identifier for a modifier to the Procedure (e.g. bilateral). These concepts are typically distinguished by 'Modifier' concept classes (e.g., 'CPT4 Modifier' as part of the 'CPT4' vocabulary).	procedure_occurrence
174	quantity	No	INTEGER	The quantity of procedures ordered or administered.	procedure_occurrence
175	provider_id	No	INTEGER	A foreign key to the provider in the PROVIDER table who was responsible for carrying out the procedure.	procedure_occurrence
176	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
177	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
178	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
179	procedure_source_concept_id	Yes	INTEGER	A foreign key to a Procedure Concept that refers to the code used in the source.	procedure_occurrence
180	modifier_source_value	No	VARCHAR(50)	The source code for the qualifier as it appears in the source data.	procedure_occurrence
181	specimen_id	Yes	INTEGER	A unique identifier for each specimen.	specimen
182	person_id	Yes	INTEGER	A foreign key identifier to the Person for whom the Specimen is recorded.	specimen
183	specimen_concept_id	Yes	INTEGER	A foreign key referring to a Standard Concept identifier in the Standardized Vocabularies for the Specimen.	specimen
184	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
185	specimen_date	No	DATE	The date the specimen was obtained from the Person.	specimen
186	specimen_datetime	Yes	DATETIME	The date and time on the date when the Specimen was obtained from the person.	specimen
187	quantity	No	FLOAT	The amount of specimen collection from the person during the sampling procedure.	specimen
188	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
189	anatomic_site_concept_id	Yes	INTEGER	A foreign key to a Standard Concept identifier for the anatomic location of specimen collection.	specimen
190	disease_status_concept_id	Yes	INTEGER	A foreign key to a Standard Concept identifier for the Disease Status of specimen collection.	specimen
191	specimen_source_id	No	VARCHAR(50)	The Specimen identifier as it appears in the source data.	specimen
192	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
193	unit_source_value	No	VARCHAR(50)	The information about the Unit as detailed in the source.	specimen
194	anatomic_site_source_value	No	VARCHAR(50)	The information about the anatomic site as detailed in the source.	specimen
195	disease_status_source_value	No	VARCHAR(50)	The information about the disease status as detailed in the source.	specimen
196	survey_conduct_id	Yes	INTEGER	Unique identifier for each completed survey.	survey_conduct
197	person_id	Yes	INTEGER	A foreign key identifier to the Person in the PERSON table about whom the survey was completed.	survey_conduct
198	survey_concept_id	Yes	INTEGER	A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the name and identity of the survey.	survey_conduct
199	survey_start_date	No	DATE	Date on which the survey was started.	survey_conduct
200	survey_start_datetime	No	DATETIME	Date and time the survey was started.	survey_conduct
201	survey_end_date	Yes	DATE	Date on which the survey was completed.	survey_conduct
202	survey_end_datetime	No	DATETIME	Date and time the survey was completed.	survey_conduct
203	provider_id	No<C2>	INTEGER<C2>	A foreign key to the provider in the provider table who was associated with the survey completion.	survey_conduct
204	assisted_concept_id	Yes	INTEGER	A foreign key to the predefined Concept identifier in the Standardized Vocabularies indicating whether the survey was completed with assistance.	survey_conduct
205	respondent_type_concept_id	Yes	INTEGER	A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the respondent type. Example: Research Associate, Patient.	survey_conduct
206	timing_concept_id	Yes	INTEGER	A foreign key to the predefined Concept identifier in the Standardized Vocabularies that refers to a certain timing. Example: 3 month follow-up, 6 month follow-up.	survey_conduct
207	collection_method_concept_id	Yes	INTEGER	A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the data collection method (e.g. Paper, Telephone, Electronic Questionnaire).	survey_conduct
208	assisted_source_value	No	VARCHAR(50)	Source value representing whether patient required assistance to complete the survey. Example: “Completed without assistance”, ”Completed with assistance”.	survey_conduct
209	respondent_type_source_value	No	VARCHAR(100)	Source code representing role of person who completed the survey.	survey_conduct
210	timing_source_value	No	VARCHAR(100)	Text string representing the timing of the survey. Example: Baseline, 6-month follow-up.	survey_conduct
211	collection_method_source_value	No	VARCHAR(100)	The collection method as it appears in the source data.	survey_conduct
212	survey_source_value	No	VARCHAR(100)	The survey name/title as it appears in the source data.	survey_conduct
213	survey_source_concept_id	Yes	INTEGER	A foreign key to a predefined Concept that refers to the code for the survey name/title used in the source.	survey_conduct
214	survey_source_identifier	No	VARCHAR(100)	Unique identifier for each completed survey in source system.	survey_conduct
215	validated_survey_concept_id	Yes	INTEGER	A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the validation status of the survey.	survey_conduct
216	validated_survey_source_value	No	INTEGER	Source value representing the validation status of the survey.	survey_conduct
217	survey_version_number	No	VARCHAR(20)	Version number of the questionnaire or survey used.	survey_conduct
218	visit_occurrence_id	No	INTEGER	A foreign key to the VISIT_OCCURRENCE table during which the survey was completed	survey_conduct
219	response_visit_occurrence_id	No	INTEGER<C2>	A foreign key to the visit in the VISIT_OCCURRENCE table during which treatment was carried out that relates to this survey.	survey_conduct
220	visit_detail_id	Yes	INTEGER	A unique identifier for each Person's visit or encounter at a healthcare provider.	visit_detail
221	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
222	visit_detail_concept_id	Yes	INTEGER	A foreign key that refers to a visit Concept identifier in the Standardized Vocabularies belonging to the 'Visit' Vocabulary.	visit_detail
223	visit_detail_start_date	No	DATE	The start date of the visit.	visit_detail
224	visit_detail_start_datetime	Yes	DATETIME	The date and time of the visit started.	visit_detail
225	visit_detail_end_date	No	DATE	The end date of the visit. If this is a one-day visit the end date should match the start date.	visit_detail
226	visit_detail_end_datetime	Yes	DATETIME	The date and time of the visit end.	visit_detail
227	visit_detail_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 belonging to the 'Visit Type' vocabulary.	visit_detail
228	provider_id	No	INTEGER	A foreign key to the provider in the provider table who was associated with the visit.	visit_detail
229	care_site_id	No	INTEGER	A foreign key to the care site in the care site table that was visited.	visit_detail
230	visit_detail_source_value	No	STRING(50)	The source code for the visit as it appears in the source data.	visit_detail
231	visit_detail_source_concept_id	Yes	INTEGER	A foreign key to a Concept that refers to the code used in the source.	visit_detail
232	admitted_from_source_value	No	VARCHAR(50)	The source code for the admitting source as it appears in the source data.	visit_detail
233	admitted_from_concept_id	Yes	INTEGER	A foreign key to the predefined concept in the 'Place of Service' Vocabulary reflecting the admitting source for a visit.	visit_detail
234	discharge_to_source_value	No	VARCHAR(50)	The source code for the discharge disposition as it appears in the source data.	visit_detail
235	discharge_to_concept_id	Yes	INTEGER	A foreign key to the predefined concept in the 'Place of Service' Vocabulary reflecting the discharge disposition for a visit.	visit_detail
236	preceding_visit_detail_id	No	INTEGER	A foreign key to the VISIT_DETAIL table of the visit immediately preceding this visit	visit_detail
237	visit_detail_parent_id	No	INTEGER	A foreign key to the VISIT_DETAIL table record to represent the immediate parent visit-detail record.	visit_detail
238	visit_occurrence_id	Yes	INTEGER	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
239	visit_occurrence_id	Yes	INTEGER	A unique identifier for each Person's visit or encounter at a healthcare provider.	visit_occurrence
240	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
241	visit_concept_id	Yes	INTEGER	A foreign key that refers to a visit Concept identifier in the Standardized Vocabularies belonging to the 'Visit' Vocabulary.	visit_occurrence
242	visit_start_date	No	DATE	The start date of the visit.	visit_occurrence
243	visit_start_datetime	Yes	DATETIME	The date and time of the visit started.	visit_occurrence
244	visit_end_date	No	DATE	The end date of the visit. If this is a one-day visit the end date should match the start date.	visit_occurrence
245	visit_end_datetime	Yes	DATETIME	The date and time of the visit end.	visit_occurrence
246	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 belonging to the 'Visit Type' vocabulary.	visit_occurrence
247	provider_id	No	INTEGER	A foreign key to the provider in the provider table who was associated with the visit.	visit_occurrence
248	care_site_id	No	INTEGER	A foreign key to the care site in the care site table that was visited.	visit_occurrence
249	visit_source_value	No	VARCHAR(50)	The source code for the visit as it appears in the source data.	visit_occurrence
250	visit_source_concept_id	Yes	INTEGER	A foreign key to a Concept that refers to the code used in the source.	visit_occurrence
251	admitting_source_concept_id	Yes	INTEGER	A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the admitting source for a visit.	visit_occurrence
252	admitting_source_value	No	VARCHAR(50)	The source code for the admitting source as it appears in the source data.	visit_occurrence
253	discharge_to_concept_id	Yes	INTEGER	A foreign key to the predefined concept in the Place of Service Vocabulary reflecting the discharge disposition for a visit.	visit_occurrence
254	discharge_to_source_value	No	VARCHAR(50)	The source code for the discharge disposition as it appears in the source data.	visit_occurrence
255	preceding_visit_occurrence_id	No	INTEGER	A foreign key to the VISIT_OCCURRENCE table of the visit immediately preceding this visit	visit_occurrence
256	condition_era_id	Yes	INTEGER	A unique identifier for each Condition Era.	condition_era
257	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
258	condition_concept_id	Yes	INTEGER	A foreign key that refers to a standard Condition Concept identifier in the Standardized Vocabularies.	condition_era
259	condition_era_start_datetime	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
260	condition_era_end_datetime	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
261	condition_occurrence_count	No	INTEGER	The number of individual Condition Occurrences used to construct the condition era.	condition_era
262	dose_era_id	Yes	INTEGER	A unique identifier for each Dose Era.	dose_era
263	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
264	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
265	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
266	dose_value	Yes	FLOAT	The numeric value of the dose.	dose_era
267	dose_era_start_datetime	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
268	dose_era_end_datetime	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
269	drug_era_id	Yes	INTEGER	A unique identifier for each Drug Era.	drug_era
270	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
271	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
272	drug_era_start_datetime	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
273	drug_era_end_datetime	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
274	drug_exposure_count	No	INTEGER	The number of individual Drug Exposure occurrences used to construct the Drug Era.	drug_era
275	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
276	cost_id	Yes	INTEGER	A unique identifier for each COST record.	cost
277	person_id	Yes	INTEGER	A unique identifier for each PERSON.	cost
278	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
279	cost_event_field_concept_id	Yes	INTEGER	A foreign key identifier to a concept in the CONCEPT table representing the identity of the field represented by COST_EVENT_ID	cost
280	cost_concept_id	Yes	INTEGER	A foreign key that refers to a Standard Cost Concept identifier in the Standardized Vocabularies belonging to the 'Cost' vocabulary.	cost
281	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 and belonging to the 'Cost Type' vocabulary	cost
282	cost_source_concept_id	Yes	INTEGER	A foreign key to a Cost Concept that refers to the code used in the source.	cost
283	cost_source_value	No	VARCHAR(50)	The source value for the cost as it appears in the source data	cost
284	currency_concept_id	Yes	INTEGER	A foreign key identifier to the concept representing the 3-letter code used to delineate international currencies, such as USD for US Dollar. These belong to the 'Currency' vocabulary	cost
285	cost	Yes	FLOAT	The actual financial cost amount	cost
286	incurred_date	Yes	DATE	The first date of service of the clinical event corresponding to the cost as in table capturing the information (e.g. date of visit, date of procedure, date of condition, date of drug etc).	cost
287	billed_date	No	DATE	The date a bill was generated for a service or encounter	cost
288	paid_date	No	DATE	The date payment was received for a service or encounter	cost
289	revenue_code_concept_id	Yes	INTEGER	A foreign key referring to a Standard Concept ID in the Standardized Vocabularies for Revenue codes belonging to the 'Revenue Code' vocabulary.	cost
290	drg_concept_id	Yes	INTEGER	A foreign key referring to a Standard Concept ID in the Standardized Vocabularies for DRG codes belonging to the 'DRG' vocabulary.	cost
291	revenue_code_source_value	No	VARCHAR(50)	The source value for the Revenue code as it appears in the source data, stored here for reference.	cost
292	drg_source_value	No	VARCHAR(50)	The source value for the 3-digit DRG source code as it appears in the source data, stored here for reference.	cost
293	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
294	payer_plan_period_id	Yes	INTEGER	A identifier for each unique combination of payer, plan, family code and time span.	payer_plan_period
295	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
296	contract_person_id	No	INTEGER	A foreign key identifier to the person_id in person table, for the person who is the primary subscriber/contract owner for the record in the payer_plan_period table. Maybe the same person or different person, depending on who is the primary subscriber/contract owner.	payer_plan_period
297	payer_plan_period_start_date	Yes	DATE	The start date of the payer plan period.	payer_plan_period
298	payer_plan_period_end_date	Yes	DATE	The end date of the payer plan period.	payer_plan_period
299	payer_concept_id	Yes	INTEGER	A foreign key that refers to a standard Payer concept identifier in the Standarized Vocabularies	payer_plan_period
300	payer_source_value	No	VARCHAR(50)	The source code for the payer as it appears in the source data.	payer_plan_period
301	payer_source_concept_id	Yes	INTEGER	A foreign key to a payer concept that refers to the code used in the source.	payer_plan_period
302	plan_concept_id	Yes	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
303	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
304	plan_source_concept_id	Yes	INTEGER	A foreign key to a plan concept that refers to the plan code used in the source data.	payer_plan_period
305	contract_concept_id	Yes	INTEGER	A foreign key to a standard concept representing the reason justifying the contract between person_id and contract_person_id.	payer_plan_period
306	contract_source_value	No	INTEGER	The source code representing the reason justifying the contract. Usually it is family relationship like a spouse, domestic partner, child etc.	payer_plan_period
307	contract_source_concept_id	Yes	INTEGER	A foreign key to a concept that refers to the code used in the source as the reason justifying the contract.	payer_plan_period
308	sponsor_concept_id	Yes	INTEGER	A foreign key that refers to a concept identifier that represents the sponsor in the Standardized Vocabularies.	payer_plan_period
309	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
310	sponsor_source_concept_id	Yes	INTEGER	A foreign key to a sponsor concept that refers to the sponsor code used in the source data.	payer_plan_period
311	family_source_value	No	VARCHAR(50)	The source code for the Person's family as it appears in the source data.	payer_plan_period
312	stop_reason_concept_id	Yes	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
313	stop_reason_source_value	No	VARCHAR(50)	The reason for stop-coverage as it appears in the source data.	payer_plan_period
314	stop_reason_source_concept_id	Yes	INTEGER	A foreign key to a stop-coverage concept that refers to the code used in the source.	payer_plan_period
315	care_site_id	Yes	INTEGER	A unique identifier for each Care Site.	care_site
316	care_site_name	No	VARCHAR(255)	The verbatim description or name of the Care Site as in data source	care_site
317	place_of_service_concept_id	Yes	INTEGER	A foreign key that refers to a Place of Service Concept ID in the Standardized Vocabularies.	care_site
318	location_id	No	INTEGER	A foreign key to the geographic Location in the LOCATION table, where the detailed address information is stored.	care_site
319	care_site_source_value	No	VARCHAR(50)	The identifier for the Care Site in the source data, stored here for reference.	care_site
320	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
321	location_id	Yes	INTEGER	A unique identifier for each geographic location.	location
322	address_1	No	VARCHAR(50)	The address field 1, typically used for the street address, as it appears in the source data.	location
323	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
324	city	No	VARCHAR(50)	The city field as it appears in the source data.	location
325	state	No	VARCHAR(2)	The state field as it appears in the source data.	location
326	zip	No	VARCHAR(9)	The zip or postal code.	location
327	county	No	VARCHAR(20)	The county.	location
328	country	No	VARCHAR(100)	The country	location
329	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
330	latitude	No	FLOAT	The geocoded latitude	location
331	longitude	No	FLOAT	The geocoded longitude	location
332	location_id	Yes	INTEGER	A foreign key to the location table.	location_history
333	relationship_type_concept_id	Yes	VARCHAR(50)	The type of relationship between location and entity.	location_history
334	domain_id	Yes	VARCHAR(50)	The domain of the entity that is related to the location. Either PERSON, PROVIDER, or CARE_SITE.	location_history
335	entity_id	Yes	INTEGER	The unique identifier for the entity. References either person_id, provider_id, or care_site_id, depending on domain_id.	location_history
336	start_date	Yes	DATE	The date the relationship started.	location_history
337	end_date	No	DATE	The date the relationship ended.	location_history
338	provider_id	Yes	INTEGER	A unique identifier for each Provider.	provider
339	provider_name	No	VARCHAR(255)	A description of the Provider.	provider
340	npi	No	VARCHAR(20)	The National Provider Identifier (NPI) of the provider.	provider
341	dea	No	VARCHAR(20)	The Drug Enforcement Administration (DEA) number of the provider.	provider
342	specialty_concept_id	Yes	INTEGER	A foreign key to a Standard Specialty Concept ID in the Standardized Vocabularies.	provider
343	care_site_id	No	INTEGER	A foreign key to the main Care Site where the provider is practicing.	provider
344	year_of_birth	No	INTEGER	The year of birth of the Provider.	provider
345	gender_concept_id	Yes	INTEGER	The gender of the Provider.	provider
346	provider_source_value	No	VARCHAR(50)	The identifier used for the Provider in the source data, stored here for reference.	provider
347	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
348	specialty_source_concept_id	Yes	INTEGER	A foreign key to a Concept that refers to the code used in the source.	provider
349	gender_source_value	No	VARCHAR(50)	The gender code for the Provider as it appears in the source data, stored here for reference.	provider
350	gender_source_concept_id	Yes	INTEGER	A foreign key to a Concept that refers to the code used in the source.	provider
351	cdm_source_name	Yes	VARCHAR(255)	The full name of the source	cdm_source
352	cdm_source_abbreviation	No	VARCHAR(25)	An abbreviation of the name	cdm_source
353	cdm_holder	No	VARCHAR(255)	The name of the organization responsible for the development of the CDM instance	cdm_source
354	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
355	source_documentation_reference	No	VARCHAR(255)	URL or other external reference to location of source documentation	cdm_source
356	cdm_etl_reference	No	VARCHAR(255)	URL or other external reference to location of ETL specification documentation and ETL source code	cdm_source
357	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
358	cdm_release_date	No	DATE	The date when the CDM was instantiated	cdm_source
359	cdm_version	No	VARCHAR(10)	The version of CDM used	cdm_source
360	vocabulary_version	No	VARCHAR(20)	The version of the vocabulary used	cdm_source
361	metadata_concept_id	Yes	INTEGER	A foreign key that refers to a Standard Metadata Concept identifier in the Standardized Vocabularies.	metadata
362	metadata_type_concept_id	Yes	INTEGER	A foreign key that refers to a Standard Type Concept identifier in the Standardized Vocabularies.	metadata
363	name	Yes	VARCHAR(250)	The name of the Concept stored in metadata_concept_id or a description of the data being stored.	metadata
364	value_as_string	No	NVARCHAR	The metadata value stored as a string.	metadata
365	value_as_concept_id	No	INTEGER	A foreign key to a metadata value stored as a Concept ID.	metadata
366	metadata date	No	DATE	The date associated with the metadata	metadata
367	metadata_datetime	No	DATETIME	The date and time associated with the metadata	metadata
368	concept_id	Yes	INTEGER	A unique identifier for each Concept across all domains.	concept
369	concept_name	Yes	VARCHAR(255)	An unambiguous, meaningful and descriptive name for the Concept.	concept
370	domain_id	Yes	VARCHAR(20)	A foreign key to the [DOMAIN](https://github.com/OHDSI/CommonDataModel/wiki/DOMAIN) table the Concept belongs to.	concept
371	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
372	concept_class_id	Yes	VARCHAR(20)	The attribute or concept class of the Concept. Examples are 'Clinical Drug', 'Ingredient', 'Clinical Finding' etc.	concept
373	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
374	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
375	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
376	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
377	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
378	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
379	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
380	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
381	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
382	concept_class_id	Yes	VARCHAR(20)	A unique key for each class.	concept_class
383	concept_class_name	Yes	VARCHAR(255)	The name describing the Concept Class, e.g. "Clinical Finding", "Ingredient", etc.	concept_class
384	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
385	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
386	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
387	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
388	valid_start_date	Yes	DATE	The date when the instance of the Concept Relationship is first recorded.	concept_relationship
389	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
390	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
391	concept_id	Yes	INTEGER	A foreign key to the Concept in the CONCEPT table.	concept_synonym
392	concept_synonym_name	Yes	VARCHAR(1000)	The alternative name for the Concept.	concept_synonym
393	language_concept_id	Yes	INTEGER	A foreign key to a Concept representing the language.	concept_synonym
394	domain_id	Yes	VARCHAR(20)	A unique key for each domain.	domain
395	domain_name	Yes	VARCHAR(255)	The name describing the Domain, e.g. "Condition", "Procedure", "Measurement" etc.	domain
396	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
397	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
398	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
399	amount_value	No	FLOAT	The numeric value associated with the amount of active ingredient contained within the product.	drug_strength
400	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
401	numerator_value	No	FLOAT	The numeric value associated with the concentration of the active ingredient contained in the product	drug_strength
402	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
403	denominator_value	No	FLOAT	The amount of total liquid (or other divisible product, such as ointment, gel, spray, etc.).	drug_strength
404	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
405	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
406	valid_start_date	Yes	DATE	The date when the Concept was first recorded. The default value is 1-Jan-1970.	drug_strength
407	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
408	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
409	relationship_id	Yes	VARCHAR(20)	The type of relationship captured by the relationship record.	relationship
410	relationship_name	Yes	VARCHAR(255)	The text that describes the relationship type.	relationship
411	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
412	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
413	reverse_relationship_id	Yes	VARCHAR(20)	The identifier for the relationship used to define the reverse relationship between two concepts.	relationship
414	relationship_concept_id	Yes	INTEGER	A foreign key that refers to an identifier in the CONCEPT table for the unique relationship concept.	relationship
415	source_code	Yes	VARCHAR(50)	The source code being translated into a Standard Concept.	source_to_concept_map
416	source_concept_id	Yes	INTEGER	A foreign key to the Source Concept that is being translated into a Standard Concept.	source_to_concept_map
417	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
418	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
419	target_concept_id	Yes	INTEGER	A foreign key to the target Concept to which the source code is being mapped.	source_to_concept_map
420	target_vocabulary_id	Yes	VARCHAR(20)	A foreign key to the VOCABULARY table defining the vocabulary of the target Concept.	source_to_concept_map
421	valid_start_date	Yes	DATE	The date when the mapping instance was first recorded.	source_to_concept_map
422	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
423	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
424	vocabulary_id	Yes	VARCHAR(20)	A unique identifier for each Vocabulary, such as ICD9CM, SNOMED, Visit.	vocabulary
425	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
426	vocabulary_reference	Yes	VARCHAR(255)	External reference to documentation or available download of the about the vocabulary.	vocabulary
427	vocabulary_version	No	VARCHAR(255)	Version of the Vocabulary as indicated in the source.	vocabulary
428	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