workflow external identifier

wf_ext_id

general

Updated 3/30/2026

Definition

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

Standard Abbreviation

wf_ext_id

Database Usage

-- Example column naming
CREATE TABLE claims (
  clm_id VARCHAR(50),
  wf_ext_id VARCHAR(50),  -- workflow external identifier (max 50 chars)
  ...
);

-- Example in SELECT
SELECT
  clm_id,
  wf_ext_id as workflow_external_identifier
FROM claims;

Common uses in healthcare data

Healthcare data warehouse schema design and modeling
Interoperability and cross-system data exchange
ETL pipeline development and orchestration
Master data management (MDM) programs
Analytics and business intelligence reporting

Example database column name

ISO-11179 snake_case standard

-- Recommended column name
wf_ext_id

-- Example DDL
CREATE TABLE healthcare_data (
  record_id   VARCHAR(50)   NOT NULL,
  wf_ext_id    VARCHAR(50),  -- workflow external identifier (max 50 chars)
  created_dt  TIMESTAMP     NOT NULL DEFAULT NOW()
);

Column names follow the ISO-11179 naming convention: lowercase, underscore-separated, using the standard abbreviation as a prefix where applicable.

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