ImmunizationRecommendation resource (FHIR R4)

ImmunizationRecommendation is the FHIR R4 resource for a patient's point-in-time set of recommendations (i.e.

Resource	ImmunizationRecommendation
FHIR version	R4 (4.0.1)
Canonical URL	http://hl7.org/fhir/StructureDefinition/ImmunizationRecommendation
Required elements	patient (1..1), date (1..1), recommendation (1..*)

Example

{
  "resourceType": "ImmunizationRecommendation",
  "id": "immunizationrecommendation-079196c3e2e7a5b321c61371e105a13d",
  "patient": {
    "reference": "Patient/patient-95bf3ab814aa8e10f3139ae0f259e493"
  },
  "date": "2026-07-01T12:00:00Z",
  "recommendation": [
    {
      "forecastStatus": {
        "text": "Synthetic value"
      }
    }
  ]
}

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

Validation context

strict pidgeon validate grades a ImmunizationRecommendation 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 ImmunizationRecommendation

Wire it into your AI agent:

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

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