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oncology external identifier

onc_ext_id
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

onc_ext_id

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  onc_ext_id as oncology_external_identifier
FROM claims;

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