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protocol external identifier

proto_ext_id
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

proto_ext_id

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  proto_ext_id as protocol_external_identifier
FROM claims;

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