{
  "resourceType": "StructureDefinition",
  "id": "dbdca668-70ed-4db4-b42c-689a6d68c661",
  "meta": {
    "lastUpdated": "2021-06-08T12:36:41.605+00:00"
  },
  "url": "https://fhir.mhn.asia/emr/StructureDefinition/extension-MyExtension",
  "name": "MyExtension",
  "status": "draft",
  "date": "2021-06-08T12:35:55.9659985+00:00",
  "description": "my extension description",
  "purpose": "my extension purpose",
  "fhirVersion": "4.0.1",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Patient"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "mExt short desc",
        "definition": "mExt Def.",
        "comment": "myExt Comment",
        "alias": [
          "myExt Alias"
        ],
        "min": 1
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Extension.extension:period",
        "path": "Extension.extension",
        "sliceName": "period"
      },
      {
        "id": "Extension.extension:period.url",
        "path": "Extension.extension.url",
        "fixedUri": "period"
      },
      {
        "id": "Extension.extension:period.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "Period"
          }
        ],
        "fixedPeriod": {
          "start": "2021-06-05"
        }
      },
      {
        "id": "Extension.extension:reason",
        "path": "Extension.extension",
        "sliceName": "reason"
      },
      {
        "id": "Extension.extension:reason.url",
        "path": "Extension.extension.url",
        "fixedUri": "reason"
      },
      {
        "id": "Extension.extension:reason.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "Extension.extension:reason.value[x].coding.system",
        "path": "Extension.extension.value[x].coding.system",
        "fixedUri": "http://snomed.info/sct"
      },
      {
        "id": "Extension.extension:reason.value[x].coding.code",
        "path": "Extension.extension.value[x].coding.code",
        "fixedCode": "tt14j"
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "https://fhir.mhn.asia/emr/StructureDefinition/extension-MyExtension"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "max": "0"
      }
    ]
  }
}