referral external identifier

Architectural Definition

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

Schema Preview

● application/json

{
  "entity": "referral-external-identifier",
  "domain": "healthcare",
  "metadata": {
    "displayName": "referral external identifier",
    "status": "STANDARDIZED",
    "version": "1.0.4",
    "isStandardized": true
  }
}

Standard

ISO-8601

Data Type

String/Obj

Steward

Arch Council

Verified

Feb 2026

mdatool.

Architectural Definition

Schema Preview