GraphDefinition resource (FHIR R4)

GraphDefinition is the FHIR R4 resource for a formal computable definition of a graph of resources - that is, a coherent set of resources that form a graph by following references.

Resource	GraphDefinition
FHIR version	R4 (4.0.1)
Canonical URL	http://hl7.org/fhir/StructureDefinition/GraphDefinition
Required elements	name (1..1), status (1..1), start (1..1)

Example

{
  "resourceType": "GraphDefinition",
  "id": "graphdefinition-ad4e902694cf20994f76a7d1ddb8d901",
  "name": "Synthetic value",
  "status": "draft",
  "start": "Account"
}

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

Validation context

strict pidgeon validate grades a GraphDefinition 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)

This answer, in your terminal

pidgeon lookup GraphDefinition

Wire it into your AI agent:

claude mcp add pidgeon -- npx -y @pidgeonhealth/mcp

Download Post free to browse this reference with generation attached.