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allergy external identifier

alrg_ext_id
general
Updated 3/30/2026

Definition

The external system reference id for a adverse reaction history. Used as a unique reference to identify and track the allergy across healthcare systems. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for allergy management and reporting.

Standard Abbreviation

alrg_ext_id

Category

general

Database Usage

-- Example column naming
CREATE TABLE claims (
  claim_id VARCHAR(50),
  alrg_ext_id VARCHAR(100),  -- allergy external identifier
  ...
);

-- Example in SELECT
SELECT 
  claim_id,
  alrg_ext_id as allergy_external_identifier
FROM claims;

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