Generate, validate, and deliver HL7 v2 and FHIR test messages

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FHIR implementation-guide conformance evidence · In Post

Prove conformance in CI before January 1, 2027

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Read the messages, not just the pipes: any engine or none

Validated, reconciled exports between systems

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List resource (FHIR R4)

List is the FHIR R4 resource for a list is a curated collection of resources.

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

Example

{
  "resourceType": "List",
  "id": "list-6596115d734310fd59f418fca0da4842",
  "status": "current",
  "mode": "working"
}

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

Validation context

strict pidgeon validate grades a List 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 List

Wire it into your AI agent:

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

Download Post free to browse this reference with generation attached.