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diagnosis key

diag_key
general
Updated 3/30/2026

Definition

The lookup reference value for a medical condition identification. Used in healthcare data management and clinical workflows. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for diagnosis management and reporting.

Standard Abbreviation

diag_key

Category

general

Database Usage

-- Example column naming
CREATE TABLE claims (
  claim_id VARCHAR(50),
  diag_key VARCHAR(100),  -- diagnosis key
  ...
);

-- Example in SELECT
SELECT 
  claim_id,
  diag_key as diagnosis_key
FROM claims;

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