{
  "resourceType": "StructureDefinition",
  "url": "https://example2.org/fhir/StructureDefinition/MyExtension",
  "name": "DateOfAcquisition",
  "status": "draft",
  "fhirVersion": "5.0.0",
  "kind": "complex-type",
  "abstract": false,
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "https://example2.org/fhir/StructureDefinition/MyExtension"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](extensibility.html) for a list). // Prietaiso įsigijimo data / Date of acquisition",
        "type": [
          {
            "code": "date"
          }
        ],
        "example": [
          {
            "label": "Date",
            "valueDate": "1990-01-01"
          }
        ]
      }
    ]
  }
}