OMOP CDM

The Observational Medical Outcomes Partnership (OMOP) Common Data Model (CDM) is an open community data standard, designed to standardize the structure and content of observational data and to enable efficient analyses that can produce reliable evidence.

Key Capabilities

• Standardized Schema: Transforms disparate observational databases (EMRs, claims data, registries) into a single, cohesive schema.
• Unified Vocabulary: Maps local medical codes to standard terminology sets (like SNOMED, RxNorm, LOINC) ensuring cross-institutional compatibility.
• Federated Analytics: Enables the OHDSI community to run the same analytical SQL scripts and R packages across thousands of distinct databases worldwide without ever moving patient-level data.

Usage in Healthcare

By structuring longitudinal health records into OMOP CDM, health systems can quickly build cohorts for retrospective research or deploy predictive algorithms. See Cookbook 11: Longitudinal Cohort Extraction for a guide on automatically parsing raw unstructured clinical notes into structured OMOP SQL rows using NLP.