Back to search

patient master identifier

pt_mstr_id
member
Updated 3/30/2026

Definition

The enterprise master id for a individual receiving medical care. Used as a unique reference to identify and track the patient across healthcare systems. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for patient management and reporting.

Standard Abbreviation

pt_mstr_id

Category

member

Database Usage

-- Example column naming
CREATE TABLE claims (
  claim_id VARCHAR(50),
  pt_mstr_id VARCHAR(100),  -- patient master identifier
  ...
);

-- Example in SELECT
SELECT 
  claim_id,
  pt_mstr_id as patient_master_identifier
FROM claims;

Looking for more healthcare terms?

Browse our complete library of 65,000+ standardized healthcare data terms

Browse All Terms