{
  "resourceType": "Immunization",
  "id": "b-immunization-4",
  "status": "done",
  "vaccineCode": {
    "coding": [
      {
        "system": "http://hl7.org/fhir/sid/cvx",
        "code": "141"
      },
      {
        "system": "http://hl7.org/fhir/sid/ndc",
        "code": "1951581452"
      }
    ],
    "text": "Influenza, seasonal, injectable"
  },
  "patient": {
    "reference": "Patient/patient-1",
    "display": "Ting, Tess"
  },
  "encounter": {
    "reference": "Encounter/encounter-unk",
    "display": "GP Visit"
  },
  "occurrenceDateTime": "2023-10-01",
  "primarySource": true,
  "manufacturer": {
    "display": "Sanofi Pasteur"
  },
  "lotNumber": "1",
  "site": {
    "coding": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-ActSite",
        "code": "LA",
        "display": "Left Arm"
      }
    ],
    "text": "Left Arm"
  },
  "route": {
    "coding": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-RouteOfAdministration",
        "code": "IM",
        "display": "Injection, intramuscular"
      }
    ],
    "text": "Injection, intramuscular"
  },
  "doseQuantity": {
    "value": 0.5,
    "unit": "mL"
  },
  "performer": [
    {
      "function": {
        "coding": [
          {
            "system": "http://terminology.hl7.org/CodeSystem/v2-0443",
            "code": "AP",
            "display": "Administering Provider"
          }
        ],
        "text": "Administering Provider"
      },
      "actor": {
        "reference": "Practitioner/b-practitioner-1",
        "type": "Practitioner",
        "display": "Dr Maria Hernandez"
      }
    }
  ]
}