Composition resource (FHIR R4)

Composition is the FHIR R4 resource for a set of healthcare-related information that is assembled together into a single logical package that provides a single coherent statement of meaning, establishes its own context and that has clinical attestation with regard to who is making the statement.

Example

{
  "resourceType": "Composition",
  "id": "composition-d5ae9cf3e5433c30da23d1cdbf43e614",
  "status": "preliminary",
  "type": {
    "text": "Synthetic value"
  },
  "date": "2026-07-01T12:00:00Z",
  "author": [
    {
      "reference": "Practitioner/practitioner-d02ac3fdd5c97346a37eca2c2d4ebad3"
    }
  ],
  "title": "Synthetic value"
}

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

Validation context

• strict pidgeon validate grades a Composition 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)