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Retrieve the list of standard OHDSI domains. Domains categorize concepts by their clinical or administrative function (e.g., Condition, Drug, Procedure).

Query Parameters

string
Specific vocabulary release version to use. If not provided, uses the latest available release.
Format: YYYY.Q (e.g., 2025.1)

Response

boolean
Indicates if the request was successful.
object
object

Available Domains

The endpoint returns all standard OHDSI domains:

Clinical Domains

  • Condition - Diseases, disorders, and clinical findings
  • Procedure - Medical procedures and interventions
  • Observation - Clinical observations and assessments
  • Measurement - Quantitative test results and vital signs
  • Drug - Medications and pharmaceutical products
  • Device - Medical devices and equipment
  • Specimen - Biological specimens and samples

Administrative Domains

  • Visit - Healthcare encounters and visit types
  • Provider - Healthcare provider roles and specialties
  • Location - Geographic locations
  • Care Site - Healthcare facilities
  • Payer - Insurance and payment-related concepts
  • Plan - Insurance plans
  • Sponsor - Study sponsors
  • Cost - Healthcare cost information
  • Revenue - Revenue codes

Other Domains

  • Episode - Clinical episodes
  • Regimen - Treatment regimens
  • Metadata - Vocabulary metadata
  • Type Concept - Type concepts
  • Relationship - Relationship types
  • Gender - Gender concepts
  • Race - Race concepts
  • Ethnicity - Ethnicity concepts