{
  "resourceType": "StructureDefinition",
  "id": "ImmunizationMERT",
  "url": "https://intrahealth.com/fhir/mert/StructureDefinition/ImmunizationMERT",
  "name": "ImmunizationMERT",
  "title": "Immunization (MERT)",
  "status": "draft",
  "description": "This profile describes the Immunization constraints for MERT.",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Immunization",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Immunization",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Immunization.status",
        "path": "Immunization.status",
        "mustSupport": true
      },
      {
        "id": "Immunization.vaccineCode",
        "path": "Immunization.vaccineCode",
        "short": "Vaccine product administered (source coding preserved).",
        "comment": "MERT does not further constrain vaccineCode beyond base FHIR. Source systems SHOULD preserve original codings. If local or non-standard codes are used, populate vaccineCode.text with a human-readable vaccine name.",
        "mustSupport": true
      },
      {
        "id": "Immunization.vaccineCode.text",
        "path": "Immunization.vaccineCode.text",
        "mustSupport": true
      },
      {
        "id": "Immunization.patient",
        "path": "Immunization.patient",
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "https://intrahealth.com/fhir/mert/StructureDefinition/PatientMERT"
            ]
          }
        ],
        "mustSupport": true
      },
      {
        "id": "Immunization.occurrence[x]",
        "path": "Immunization.occurrence[x]",
        "slicing": {
          "discriminator": [
            {
              "type": "type",
              "path": "$this"
            }
          ],
          "ordered": false,
          "rules": "open"
        },
        "mustSupport": true
      },
      {
        "id": "Immunization.occurrence[x]:occurrenceDateTime",
        "path": "Immunization.occurrence[x]",
        "sliceName": "occurrenceDateTime",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "dateTime"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "Immunization.occurrence[x]:occurrenceString",
        "path": "Immunization.occurrence[x]",
        "sliceName": "occurrenceString",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "string"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "Immunization.lotNumber",
        "path": "Immunization.lotNumber",
        "mustSupport": true
      },
      {
        "id": "Immunization.expirationDate",
        "path": "Immunization.expirationDate",
        "mustSupport": true
      },
      {
        "id": "Immunization.site",
        "path": "Immunization.site",
        "comment": "Use SNOMED CT body site of administration when available. Local body site codes are permitted when no mapping exists; include site.text.",
        "mustSupport": true
      },
      {
        "id": "Immunization.site.text",
        "path": "Immunization.site.text",
        "mustSupport": true
      },
      {
        "id": "Immunization.route",
        "path": "Immunization.route",
        "comment": "MERT does not further constrain route beyond base FHIR. SNOMED CT is preferred when available; local codes are permitted. When local codes are used, populate route.text with a human-readable description.",
        "mustSupport": true
      },
      {
        "id": "Immunization.route.text",
        "path": "Immunization.route.text",
        "mustSupport": true
      },
      {
        "id": "Immunization.doseQuantity",
        "path": "Immunization.doseQuantity",
        "mustSupport": true
      },
      {
        "id": "Immunization.performer",
        "path": "Immunization.performer",
        "mustSupport": true
      },
      {
        "id": "Immunization.performer.actor",
        "path": "Immunization.performer.actor",
        "mustSupport": true
      },
      {
        "id": "Immunization.note",
        "path": "Immunization.note",
        "mustSupport": true
      }
    ]
  }
}