Observational Health Data Sciences and Informatics

• Requester: Vojtech Huser
• Discussion:

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A phenotype definition (patient cohort) may include Diagnostic or Medication Code. However, it can also include Procedural code. e.g., patients who had chest X ray done.

Whereas OHDSI is using SNOMED for Diagnoses and LOINC for lab, there is no “international” terminology for procedures. Some Asian countries mapped their procedure codes to CPT4. However CPT4 requires a license. For new data partners within OHDSI, the license requirement may be troubling.

Possible terminologies may be ICD10PCS or SNOMED (specifically, procedure codes within SNOMED). Snomed does not offer the needed granularity.