encounter.cancelled
The registration was voided.
The registration was voided.
| Event type | encounter.cancelled |
|---|---|
| Scope | encounter |
| Idempotency key | Stable across retries and derived only from source data: HL7 {sourceId}:{feedKey}:{MSH-7 ms}:{MSH-10}:{eventKey}, FHIR {sourceId}:fhir:{type}/{id}/_history/{version}:{n}. |
| Since | 1.0 |
| HL7 v2 | ADT^A11 |
| FHIR R4 | Encounter |
When to send
A11 (unless the site uses A11 for patients who leave), or Encounter cancelled or entered-in-error.
What it changes
- Revokes every token and session at once; removes the visit from the board and analytics.
JSON Schema
encounter.cancelled.schema.json
Example
{ "specVersion": "1.0", "id": "demo-epic-bridges:ADT000140:0", "type": "encounter.cancelled", "siteCode": "demo-ed", "occurredAt": "2026-09-14T08:20:03-04:00", "source": { "kind": "ehr", "system": "epic", "feed": "adt" }, "encounter": { "externalId": "3000123999", "idSystem": "epic-csn" }, "data": { "reason": "duplicate" }}