Clinical Data Repository

CDR

clinical

Updated 5/15/2026

Definition

A centralized, subject-oriented database consolidating structured and unstructured clinical data from EHR, laboratory, pharmacy, and imaging systems into a unified patient record. CDRs serve as the foundational data layer for clinical analytics, real-time decision support, and longitudinal care management platforms, using HL7 FHIR or HL7 v2 interfaces for interoperability across disparate source systems.

Standard Abbreviation

CDR

Database Usage

-- Example column naming
CREATE TABLE claims (
  clm_id VARCHAR(50),
  cdr VARCHAR(100),  -- Clinical Data Repository (max 100 chars)
  ...
);

-- Example in SELECT
SELECT
  clm_id,
  cdr as clinical_data_repository
FROM claims;

Common uses in healthcare data

Risk stratification and population health analytics
CMS-HCC risk adjustment and RAF score calculation
Quality measure attribution and HEDIS reporting
Clinical data warehouse schema design
Value-based care contract performance tracking

Example database column name

ISO-11179 snake_case standard

-- Recommended column name
cdr

-- Example DDL
CREATE TABLE healthcare_data (
  record_id   VARCHAR(50)   NOT NULL,
  cdr          VARCHAR(100),  -- Clinical Data Repository (max 100 chars)
  created_dt  TIMESTAMP     NOT NULL DEFAULT NOW()
);

Column names follow the ISO-11179 naming convention: lowercase, underscore-separated, using the standard abbreviation as a prefix where applicable.

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