AdverseEvent resource (FHIR R4)

AdverseEvent is the FHIR R4 resource for actual or potential/avoided event causing unintended physical injury resulting from or contributed to by medical care, a research study or other healthcare setting factors that requires additional monitoring, treatment, or hospitalization, or that results in death.

Example

{
  "resourceType": "AdverseEvent",
  "id": "adverseevent-1603c48203b3b4b5efc00cc480893bc2",
  "actuality": "actual",
  "subject": {
    "reference": "Patient/patient-f1ed5945e9f92614431e5db63609ec7c"
  }
}

Generated by the Pidgeon engine: pidgeon generate AdverseEvent --seed 20260722.

Validation context

• strict pidgeon validate grades a AdverseEvent instance against the base R4 structure definition: missing required elements raise REQUIRED_FIELD_MISSING and cardinality violations raise CARDINALITY_MIN or CARDINALITY_MAX.(REQUIRED_FIELD_MISSING)