{
  "resourceType": "StructureDefinition",
  "url": "http://example.org/fhir/StructureDefinition/PositionExtension",
  "name": "PositionExtension",
  "status": "draft",
  "date": "2017-09-15T01:33:36.018+00:00",
  "fhirVersion": "3.0.1",
  "kind": "complex-type",
  "abstract": false,
  "contextType": "resource",
  "context": [
    "Observation"
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Extension.extension:x",
        "path": "Extension.extension",
        "sliceName": "x"
      },
      {
        "id": "Extension.extension:x.url",
        "path": "Extension.extension.url",
        "fixedUri": "x"
      },
      {
        "id": "Extension.extension:x.value[x]:valueDecimal",
        "path": "Extension.extension.valueDecimal",
        "sliceName": "valueDecimal",
        "type": [
          {
            "code": "decimal"
          }
        ]
      },
      {
        "id": "Extension.extension:y",
        "path": "Extension.extension",
        "sliceName": "y"
      },
      {
        "id": "Extension.extension:y.url",
        "path": "Extension.extension.url",
        "fixedUri": "y"
      },
      {
        "id": "Extension.extension:y.value[x]:valueDecimal",
        "path": "Extension.extension.valueDecimal",
        "sliceName": "valueDecimal",
        "type": [
          {
            "code": "decimal"
          }
        ]
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://example.org/fhir/StructureDefinition/PositionExtension"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "max": "0"
      }
    ]
  }
}