(for ConceptClass:) A unique key for each class.

(for SurveyConduct:) Unique identifier for each completed survey.

(for Measurement:) A unique identifier for each Measurement.

(for Person:) A unique identifier for each person.

(for Provider:) A unique identifier for each Provider.

(for ConditionOccurrence:) A unique identifier for each Condition Occurrence event.

(for ConditionEra:) A unique identifier for each Condition Era.

(for Specimen:) A unique identifier for each specimen.

(for DrugExposure:) A system-generated unique identifier for each Drug utilization event.

(for VisitOccurrence:) A unique identifier for each Person's visit or encounter at a healthcare provider.

(for Vocabulary:) A unique identifier for each Vocabulary, such as ICD9CM, SNOMED, Visit.

(for DoseEra:) A unique identifier for each Dose Era.

(for Note:) A unique identifier for each note.

(for CohortDefinition:) A unique identifier for each Cohort.

(for Observation:) A unique identifier for each observation.

(for Relationship:) The type of relationship captured by the relationship record.

(for ObservationPeriod:) A unique identifier for each observation period.

(for NoteNlp:) A unique identifier for each term extracted from a note.

(for PayerPlanPeriod:) A identifier for each unique combination of payer, plan, family code and time span.

(for ProcedureOccurrence:) A system-generated unique identifier for each Procedure Occurrence.

(for Concept:) A unique identifier for each Concept across all domains.

(for CareSite:) A unique identifier for each Care Site.

(for DeviceExposure:) A system-generated unique identifier for each Device Exposure.

(for Domain:) A unique key for each domain.

(for DrugEra:) A unique identifier for each Drug Era.

(for VisitDetail:) A unique identifier for each Person's visit or encounter at a healthcare provider.

(for Location:) A unique identifier for each geographic location.

(for Cost:) A unique identifier for each COST record.

visit_occurrence.visit_occurrence_id#238 AS int|str

observation.observation_id#121 AS int|str

survey_conduct.survey_conduct_id#195 AS int|str

domain.domain_id#393 AS int|str

relationship.relationship_id#408 AS int|str

provider.provider_id#337 AS int|str

cost.cost_id#275 AS int|str

location.location_id#320 AS int|str

procedure_occurrence.procedure_occurrence_id#166 AS int|str

concept_class.concept_class_id#381 AS int|str

condition_occurrence.condition_occurrence_id#12 AS int|str

concept.concept_id#367 AS int|str

device_exposure.device_exposure_id#28 AS int|str

observation_period.observation_period_id#142 AS int|str

vocabulary.vocabulary_id#423 AS int|str

condition_era.condition_era_id#255 AS int|str

note_nlp.note_nlp_id#107 AS int|str

payer_plan_period.payer_plan_period_id#293 AS int|str

drug_era.drug_era_id#268 AS int|str

care_site.care_site_id#314 AS int|str

dose_era.dose_era_id#261 AS int|str

cohort_definition.cohort_definition_id#5 AS int|str

note.note_id#91 AS int|str

specimen.specimen_id#180 AS int|str

visit_detail.visit_detail_id#219 AS int|str

measurement.measurement_id#71 AS int|str

person.person_id#147 AS int|str

drug_exposure.drug_exposure_id#43 AS int|str