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MedicationRequest resource (FHIR R4)

MedicationRequest is a FHIR R4 resource. The Pidgeon engine generates synthetic MedicationRequest instances and validates them against the R4 structure definitions.

ResourceMedicationRequest
FHIR versionR4 (4.0.1)
Canonical URLhttp://hl7.org/fhir/StructureDefinition/MedicationRequest
Required elementsstatus (1..1), intent (1..1), medication[x] (1..1), subject (1..1)
IG profiles in this catalog3

Example

{
  "resourceType": "MedicationRequest",
  "id": "medicationrequest-ab8ad6263882f3b4c7a71533d4552ac7",
  "status": "active",
  "intent": "order",
  "medicationCodeableConcept": {
    "text": "Sertraline"
  },
  "subject": {
    "reference": "Patient/patient-IKLT06DDHR"
  },
  "authoredOn": "2026-06-19T00:00:00Z",
  "requester": {
    "reference": "Practitioner/practitioner-1680177609",
    "display": "Goodwin, Esmeralda"
  },
  "dosageInstruction": [
    {
      "text": "Take 1.5 dose QD",
      "timing": {
        "code": {
          "coding": [
            {
              "system": "http://terminology.hl7.org/CodeSystem/v3-GTSAbbreviation",
              "code": "QD",
              "display": "QD"
            }
          ]
        }
      },
      "route": {
        "coding": [
          {
            "system": "http://snomed.info/sct",
            "code": "omitted",
            "display": "SNOMED CT code omitted from this published example"
          }
        ]
      },
      "doseAndRate": [
        {
          "doseQuantity": {
            "value": 1.5,
            "unit": "dose",
            "system": "http://unitsofmeasure.org"
          }
        }
      ]
    }
  ],
  "substitution": {
    "allowedBoolean": true
  },
  "dispenseRequest": {
    "quantity": {
      "value": 30,
      "unit": "dose"
    },
    "numberOfRepeatsAllowed": 2,
    "expectedSupplyDuration": {
  ...

Generated by the Pidgeon engine: pidgeon generate MedicationRequest --seed 20260722. Codes from licensed terminologies (LOINC, SNOMED CT, CPT, RxNorm) are omitted from published examples. Truncated for display; the command reproduces the full resource.

Validation context

  • strict pidgeon validate grades a MedicationRequest 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)
  • strict Profile validation grades the same instance against an installed IG profile: profile cardinality findings carry FHIR-PROFILE-CARDINALITY and terminology binding findings carry FHIR-PROFILE-BINDING.(FHIR-PROFILE-CARDINALITY)

This answer, in your terminal

pidgeon lookup MedicationRequest

Wire it into your AI agent:

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

Download Post free to browse this reference with generation attached.

FHIR® R4 © Health Level Seven International. FHIR R4 specification content is used under its CC0 license; this page is a derivative work and is not endorsed by HL7 International.

HL7® and FHIR® are registered trademarks of Health Level Seven International.

Published by Pattern Engine LLC (Pidgeon Health).

Rendered from the same machine-readable definitions the Pidgeon engine validates against. Exported from the Pidgeon engine's FHIR R4 definitions (CC0); example generated with seed 20260722.