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referral medical record number

ref_mrn
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

ref_mrn

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  ref_mrn as referral_medical_record_number
FROM claims;

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