visit external identifier

Architectural Definition

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

Schema Preview

● application/json

{
  "entity": "visit-external-identifier",
  "domain": "healthcare",
  "metadata": {
    "displayName": "visit 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