{
  "resourceType": "StructureDefinition",
  "url": "https://example.org/fhir/StructureDefinition/MyPatient",
  "name": "MyPatient",
  "status": "draft",
  "date": "2022-11-30T13:50:36.0750979+00:00",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Patient",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Patient",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Patient.extension",
        "path": "Patient.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        },
        "min": 0
      },
      {
        "id": "Patient.extension:myExtension",
        "path": "Patient.extension",
        "sliceName": "myExtension",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "https://example.org/fhir/StructureDefinition/OcupationType"
            ]
          }
        ],
        "isModifier": false
      },
      {
        "id": "Patient.identifier",
        "path": "Patient.identifier",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "system"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Patient.identifier:NationalIdentifier",
        "path": "Patient.identifier",
        "sliceName": "NationalIdentifier",
        "max": "1"
      },
      {
        "id": "Patient.identifier:NationalIdentifier.system",
        "path": "Patient.identifier.system",
        "min": 1,
        "fixedUri": "http://national.registry.org/ids"
      },
      {
        "id": "Patient.identifier:NationalIdentifier.value",
        "path": "Patient.identifier.value",
        "min": 1
      },
      {
        "id": "Patient.name",
        "path": "Patient.name",
        "type": [
          {
            "code": "HumanName",
            "profile": [
              "https://example.org/fhir/StructureDefinition/MyRequiredSurnameProfile"
            ]
          }
        ]
      },
      {
        "id": "Patient.name.family",
        "path": "Patient.name.family",
        "condition": [
          "charactersOnly"
        ]
      },
      {
        "id": "Patient.telecom",
        "path": "Patient.telecom",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "use"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Patient.telecom:private",
        "path": "Patient.telecom",
        "sliceName": "private",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Patient.telecom:private.value",
        "path": "Patient.telecom.value",
        "min": 1
      },
      {
        "id": "Patient.telecom:private.use",
        "path": "Patient.telecom.use",
        "fixedCode": "home"
      },
      {
        "id": "Patient.telecom:work",
        "path": "Patient.telecom",
        "sliceName": "work"
      },
      {
        "id": "Patient.telecom:work.value",
        "path": "Patient.telecom.value",
        "min": 1
      },
      {
        "id": "Patient.telecom:work.use",
        "path": "Patient.telecom.use",
        "min": 1,
        "fixedCode": "work"
      },
      {
        "id": "Patient.telecom:work.rank",
        "path": "Patient.telecom.rank",
        "max": "0"
      },
      {
        "id": "Patient.telecom:work.period",
        "path": "Patient.telecom.period",
        "max": "0"
      },
      {
        "id": "Patient.gender",
        "path": "Patient.gender",
        "mustSupport": true
      },
      {
        "id": "Patient.address",
        "path": "Patient.address",
        "condition": [
          "requiresPeriod"
        ],
        "constraint": [
          {
            "key": "requiresPeriod",
            "severity": "error",
            "human": "Period is required for temporary addresses",
            "expression": "(use = 'temp') implies period.exists()"
          }
        ]
      },
      {
        "id": "Patient.address.use",
        "path": "Patient.address.use",
        "condition": [
          "requiresPeriod"
        ]
      },
      {
        "id": "Patient.address.period",
        "path": "Patient.address.period",
        "condition": [
          "requiresPeriod"
        ]
      }
    ]
  }
}