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effective medical record number

eff_mrn
general
Updated 3/30/2026

Definition

The patient medical record number for a coverage start validity. Used as a unique reference to identify and track the effective across healthcare systems. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for effective management and reporting.

Standard Abbreviation

eff_mrn

Category

general

Database Usage

-- Example column naming
CREATE TABLE claims (
  claim_id VARCHAR(50),
  eff_mrn VARCHAR(100),  -- effective medical record number
  ...
);

-- Example in SELECT
SELECT 
  claim_id,
  eff_mrn as effective_medical_record_number
FROM claims;

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