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chemistry external identifier

chem_ext_id
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

chem_ext_id

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  chem_ext_id as chemistry_external_identifier
FROM claims;

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