erDiagram PERSON { person_id integer gender_concept_id integer year_of_birth integer month_of_birth integer day_of_birth integer birth_datetime datetime race_concept_id integer ethnicity_concept_id integer location_id integer provider_id integer care_site_id integer person_source_value varchar gender_source_value varchar gender_source_concept_id integer race_source_value varchar race_source_concept_id integer ethnicity_source_value varchar ethnicity_source_concept_id integer } OBSERVATION_PERIOD { observation_period_id integer person_id integer observation_period_start_date date observation_period_end_date date period_type_concept_id integer } VISIT_OCCURRENCE { visit_occurrence_id integer person_id integer visit_concept_id integer visit_start_date date visit_start_datetime datetime visit_end_date date visit_end_datetime datetime visit_type_concept_id Integer provider_id integer care_site_id integer visit_source_value varchar visit_source_concept_id integer admitted_from_concept_id integer admitted_from_source_value varchar discharged_to_concept_id integer discharged_to_source_value varchar preceding_visit_occurrence_id integer } VISIT_DETAIL { visit_detail_id integer person_id integer visit_detail_concept_id integer visit_detail_start_date date visit_detail_start_datetime datetime visit_detail_end_date date visit_detail_end_datetime datetime visit_detail_type_concept_id integer provider_id integer care_site_id integer visit_detail_source_value varchar visit_detail_source_concept_id Integer admitted_from_concept_id Integer admitted_from_source_value varchar discharged_to_source_value varchar discharged_to_concept_id integer preceding_visit_detail_id integer parent_visit_detail_id integer visit_occurrence_id integer } CONDITION_OCCURRENCE { condition_occurrence_id integer person_id integer condition_concept_id integer condition_start_date date condition_start_datetime datetime condition_end_date date condition_end_datetime datetime condition_type_concept_id integer condition_status_concept_id integer stop_reason varchar provider_id integer visit_occurrence_id integer visit_detail_id integer condition_source_value varchar condition_source_concept_id integer condition_status_source_value varchar } DRUG_EXPOSURE { drug_exposure_id integer person_id integer drug_concept_id integer drug_exposure_start_date date drug_exposure_start_datetime datetime drug_exposure_end_date date drug_exposure_end_datetime datetime verbatim_end_date date drug_type_concept_id integer stop_reason varchar refills integer quantity float days_supply integer sig varchar route_concept_id integer lot_number varchar provider_id integer visit_occurrence_id integer visit_detail_id integer drug_source_value varchar drug_source_concept_id integer route_source_value varchar dose_unit_source_value varchar } PROCEDURE_OCCURRENCE { procedure_occurrence_id integer person_id integer procedure_concept_id integer procedure_date date procedure_datetime datetime procedure_end_date date procedure_end_datetime datetime procedure_type_concept_id integer modifier_concept_id integer quantity integer provider_id integer visit_occurrence_id integer visit_detail_id integer procedure_source_value varchar procedure_source_concept_id integer modifier_source_value varchar } DEVICE_EXPOSURE { device_exposure_id integer person_id integer device_concept_id integer device_exposure_start_date date device_exposure_start_datetime datetime device_exposure_end_date date device_exposure_end_datetime datetime device_type_concept_id integer unique_device_id varchar production_id varchar quantity integer provider_id integer visit_occurrence_id integer visit_detail_id integer device_source_value varchar device_source_concept_id integer unit_concept_id integer unit_source_value varchar unit_source_concept_id integer } MEASUREMENT { measurement_id integer person_id integer measurement_concept_id integer measurement_date date measurement_datetime datetime measurement_time varchar measurement_type_concept_id integer operator_concept_id integer value_as_number float value_as_concept_id integer unit_concept_id integer range_low float range_high float provider_id integer visit_occurrence_id integer visit_detail_id integer measurement_source_value varchar measurement_source_concept_id integer unit_source_value varchar unit_source_concept_id integer value_source_value varchar measurement_event_id integer meas_event_field_concept_id integer } OBSERVATION { observation_id integer person_id integer observation_concept_id integer observation_date date observation_datetime datetime observation_type_concept_id integer value_as_number float value_as_string varchar value_as_concept_id Integer qualifier_concept_id integer unit_concept_id integer provider_id integer visit_occurrence_id integer visit_detail_id integer observation_source_value varchar observation_source_concept_id integer unit_source_value varchar qualifier_source_value varchar value_source_value varchar observation_event_id integer obs_event_field_concept_id integer } DEATH { person_id integer death_date date death_datetime datetime death_type_concept_id integer cause_concept_id integer cause_source_value varchar cause_source_concept_id integer } NOTE { note_id integer person_id integer note_date date note_datetime datetime note_type_concept_id integer note_class_concept_id integer note_title varchar note_text varchar encoding_concept_id integer language_concept_id integer provider_id integer visit_occurrence_id integer visit_detail_id integer note_source_value varchar note_event_id integer note_event_field_concept_id integer } NOTE_NLP { note_nlp_id integer note_id integer section_concept_id integer snippet varchar offset varchar lexical_variant varchar note_nlp_concept_id integer note_nlp_source_concept_id integer nlp_system varchar nlp_date date nlp_datetime datetime term_exists varchar term_temporal varchar term_modifiers varchar } SPECIMEN { specimen_id integer person_id integer specimen_concept_id integer specimen_type_concept_id integer specimen_date date specimen_datetime datetime quantity float unit_concept_id integer anatomic_site_concept_id integer disease_status_concept_id integer specimen_source_id varchar specimen_source_value varchar unit_source_value varchar anatomic_site_source_value varchar disease_status_source_value varchar } FACT_RELATIONSHIP { domain_concept_id_1 integer fact_id_1 integer domain_concept_id_2 integer fact_id_2 integer relationship_concept_id integer } LOCATION { location_id integer address_1 varchar address_2 varchar city varchar state varchar zip varchar county varchar location_source_value varchar country_concept_id integer country_source_value varchar latitude float longitude float } CARE_SITE { care_site_id integer care_site_name varchar place_of_service_concept_id integer location_id integer care_site_source_value varchar place_of_service_source_value varchar } PROVIDER { provider_id integer provider_name varchar npi varchar dea varchar specialty_concept_id integer care_site_id integer year_of_birth integer gender_concept_id integer provider_source_value varchar specialty_source_value varchar specialty_source_concept_id integer gender_source_value varchar gender_source_concept_id integer } PAYER_PLAN_PERIOD { payer_plan_period_id integer person_id integer payer_plan_period_start_date date payer_plan_period_end_date date payer_concept_id integer payer_source_value varchar payer_source_concept_id integer plan_concept_id integer plan_source_value varchar plan_source_concept_id integer sponsor_concept_id integer sponsor_source_value varchar sponsor_source_concept_id integer family_source_value varchar stop_reason_concept_id integer stop_reason_source_value varchar stop_reason_source_concept_id integer } COST { cost_id integer cost_event_id integer cost_domain_id varchar cost_type_concept_id integer currency_concept_id integer total_charge float total_cost float total_paid float paid_by_payer float paid_by_patient float paid_patient_copay float paid_patient_coinsurance float paid_patient_deductible float paid_by_primary float paid_ingredient_cost float paid_dispensing_fee float payer_plan_period_id integer amount_allowed float revenue_code_concept_id integer revenue_code_source_value varchar drg_concept_id integer drg_source_value varchar } DRUG_ERA { drug_era_id integer person_id integer drug_concept_id integer drug_era_start_date date drug_era_end_date date drug_exposure_count integer gap_days integer } DOSE_ERA { dose_era_id integer person_id integer drug_concept_id integer unit_concept_id integer dose_value float dose_era_start_date date dose_era_end_date date } CONDITION_ERA { condition_era_id integer person_id integer condition_concept_id integer condition_era_start_date date condition_era_end_date date condition_occurrence_count integer } EPISODE { episode_id integer person_id integer episode_concept_id integer episode_start_date date episode_start_datetime datetime episode_end_date date episode_end_datetime datetime episode_parent_id integer episode_number integer episode_object_concept_id integer episode_type_concept_id integer episode_source_value varchar episode_source_concept_id integer } EPISODE_EVENT { episode_id integer event_id integer episode_event_field_concept_id integer } METADATA { metadata_id integer metadata_concept_id integer metadata_type_concept_id integer name varchar value_as_string varchar value_as_concept_id integer value_as_number float metadata_date date metadata_datetime datetime } CDM_SOURCE { cdm_source_name varchar cdm_source_abbreviation varchar cdm_holder varchar source_description varchar source_documentation_reference varchar cdm_etl_reference varchar source_release_date date cdm_release_date date cdm_version varchar cdm_version_concept_id integer vocabulary_version varchar } CONCEPT { concept_id integer concept_name varchar domain_id varchar vocabulary_id varchar concept_class_id varchar standard_concept varchar concept_code varchar valid_start_date date valid_end_date date invalid_reason varchar } VOCABULARY { vocabulary_id varchar vocabulary_name varchar vocabulary_reference varchar vocabulary_version varchar vocabulary_concept_id integer } DOMAIN { domain_id varchar domain_name varchar domain_concept_id integer } CONCEPT_CLASS { concept_class_id varchar concept_class_name varchar concept_class_concept_id integer } CONCEPT_RELATIONSHIP { concept_id_1 integer concept_id_2 integer relationship_id varchar valid_start_date date valid_end_date date invalid_reason varchar } RELATIONSHIP { relationship_id varchar relationship_name varchar is_hierarchical varchar defines_ancestry varchar reverse_relationship_id varchar relationship_concept_id integer } CONCEPT_SYNONYM { concept_id integer concept_synonym_name varchar language_concept_id integer } CONCEPT_ANCESTOR { ancestor_concept_id integer descendant_concept_id integer min_levels_of_separation integer max_levels_of_separation integer } SOURCE_TO_CONCEPT_MAP { source_code varchar source_concept_id integer source_vocabulary_id varchar source_code_description varchar target_concept_id integer target_vocabulary_id varchar valid_start_date date valid_end_date date invalid_reason varchar } DRUG_STRENGTH { drug_concept_id integer ingredient_concept_id integer amount_value float amount_unit_concept_id integer numerator_value float numerator_unit_concept_id integer denominator_value float denominator_unit_concept_id integer box_size integer valid_start_date date valid_end_date date invalid_reason varchar } COHORT { cohort_definition_id integer subject_id integer cohort_start_date date cohort_end_date date } COHORT_DEFINITION { cohort_definition_id integer cohort_definition_name varchar cohort_definition_description varchar definition_type_concept_id integer cohort_definition_syntax varchar subject_concept_id integer cohort_initiation_date date } PERSON ||--o{ CONCEPT : "" PERSON ||--o{ LOCATION : "" PERSON ||--o{ PROVIDER : "" PERSON ||--o{ CARE_SITE : "" OBSERVATION_PERIOD ||--o{ PERSON : "" OBSERVATION_PERIOD ||--o{ CONCEPT : "" VISIT_OCCURRENCE ||--o{ PERSON : "" VISIT_OCCURRENCE ||--o{ CONCEPT : "" VISIT_OCCURRENCE ||--o{ PROVIDER : "" VISIT_OCCURRENCE ||--o{ CARE_SITE : "" VISIT_OCCURRENCE ||--o{ VISIT_OCCURRENCE : "" VISIT_DETAIL ||--o{ PERSON : "" VISIT_DETAIL ||--o{ CONCEPT : "" VISIT_DETAIL ||--o{ PROVIDER : "" VISIT_DETAIL ||--o{ CARE_SITE : "" VISIT_DETAIL ||--o{ VISIT_DETAIL : "" VISIT_DETAIL ||--o{ VISIT_OCCURRENCE : "" CONDITION_OCCURRENCE ||--o{ PERSON : "" CONDITION_OCCURRENCE ||--o{ CONCEPT : "" CONDITION_OCCURRENCE ||--o{ PROVIDER : "" CONDITION_OCCURRENCE ||--o{ VISIT_OCCURRENCE : "" CONDITION_OCCURRENCE ||--o{ VISIT_DETAIL : "" DRUG_EXPOSURE ||--o{ PERSON : "" DRUG_EXPOSURE ||--o{ CONCEPT : "" DRUG_EXPOSURE ||--o{ PROVIDER : "" DRUG_EXPOSURE ||--o{ VISIT_OCCURRENCE : "" DRUG_EXPOSURE ||--o{ VISIT_DETAIL : "" PROCEDURE_OCCURRENCE ||--o{ PERSON : "" PROCEDURE_OCCURRENCE ||--o{ CONCEPT : "" PROCEDURE_OCCURRENCE ||--o{ PROVIDER : "" PROCEDURE_OCCURRENCE ||--o{ VISIT_OCCURRENCE : "" PROCEDURE_OCCURRENCE ||--o{ VISIT_DETAIL : "" DEVICE_EXPOSURE ||--o{ PERSON : "" DEVICE_EXPOSURE ||--o{ CONCEPT : "" DEVICE_EXPOSURE ||--o{ PROVIDER : "" DEVICE_EXPOSURE ||--o{ VISIT_OCCURRENCE : "" DEVICE_EXPOSURE ||--o{ VISIT_DETAIL : "" MEASUREMENT ||--o{ PERSON : "" MEASUREMENT ||--o{ CONCEPT : "" MEASUREMENT ||--o{ PROVIDER : "" MEASUREMENT ||--o{ VISIT_OCCURRENCE : "" MEASUREMENT ||--o{ VISIT_DETAIL : "" OBSERVATION ||--o{ PERSON : "" OBSERVATION ||--o{ CONCEPT : "" OBSERVATION ||--o{ PROVIDER : "" OBSERVATION ||--o{ VISIT_OCCURRENCE : "" OBSERVATION ||--o{ VISIT_DETAIL : "" DEATH ||--o{ PERSON : "" DEATH ||--o{ CONCEPT : "" NOTE ||--o{ PERSON : "" NOTE ||--o{ CONCEPT : "" NOTE ||--o{ PROVIDER : "" NOTE ||--o{ VISIT_OCCURRENCE : "" NOTE ||--o{ VISIT_DETAIL : "" NOTE_NLP ||--o{ CONCEPT : "" SPECIMEN ||--o{ PERSON : "" SPECIMEN ||--o{ CONCEPT : "" FACT_RELATIONSHIP ||--o{ CONCEPT : "" LOCATION ||--o{ CONCEPT : "" CARE_SITE ||--o{ CONCEPT : "" CARE_SITE ||--o{ LOCATION : "" PROVIDER ||--o{ CONCEPT : "" PROVIDER ||--o{ CARE_SITE : "" PAYER_PLAN_PERIOD ||--o{ PERSON : "" PAYER_PLAN_PERIOD ||--o{ CONCEPT : "" COST ||--o{ DOMAIN : "" COST ||--o{ CONCEPT : "" DRUG_ERA ||--o{ PERSON : "" DRUG_ERA ||--o{ CONCEPT : "" DOSE_ERA ||--o{ PERSON : "" DOSE_ERA ||--o{ CONCEPT : "" CONDITION_ERA ||--o{ PERSON : "" CONDITION_ERA ||--o{ CONCEPT : "" EPISODE ||--o{ PERSON : "" EPISODE ||--o{ CONCEPT : "" EPISODE_EVENT ||--o{ EPISODE : "" EPISODE_EVENT ||--o{ CONCEPT : "" METADATA ||--o{ CONCEPT : "" CDM_SOURCE ||--o{ CONCEPT : "" CONCEPT ||--o{ DOMAIN : "" CONCEPT ||--o{ VOCABULARY : "" CONCEPT ||--o{ CONCEPT_CLASS : "" VOCABULARY ||--o{ CONCEPT : "" DOMAIN ||--o{ CONCEPT : "" CONCEPT_CLASS ||--o{ CONCEPT : "" CONCEPT_RELATIONSHIP ||--o{ CONCEPT : "" CONCEPT_RELATIONSHIP ||--o{ RELATIONSHIP : "" RELATIONSHIP ||--o{ CONCEPT : "" CONCEPT_SYNONYM ||--o{ CONCEPT : "" CONCEPT_ANCESTOR ||--o{ CONCEPT : "" SOURCE_TO_CONCEPT_MAP ||--o{ CONCEPT : "" SOURCE_TO_CONCEPT_MAP ||--o{ VOCABULARY : "" DRUG_STRENGTH ||--o{ CONCEPT : "" COHORT_DEFINITION ||--o{ CONCEPT : ""