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icd external identifier

icd_ext_id
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

icd_ext_id

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  icd_ext_id as icd_external_identifier
FROM claims;

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