{
  "resourceType": "StructureDefinition",
  "url": "https://example.org/fhir/StructureDefinition/MyObservation",
  "name": "MyObservation",
  "status": "draft",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Observation",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Observation",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Observation.code.coding.system",
        "path": "Observation.code.coding.system",
        "code": [
          {
            "system": "http://snomed.info/sct",
            "code": "118230007",
            "display": "Hearing finding"
          }
        ],
        "fixedUri": "http://snomed.info/wct"
      },
      {
        "id": "Observation.code.coding.code",
        "path": "Observation.code.coding.code",
        "code": [
          {
            "system": "http://snomed.info/sct",
            "code": "118230007",
            "display": "Hearing finding"
          }
        ]
      },
      {
        "id": "Observation.subject.reference",
        "path": "Observation.subject.reference",
        "min": 1,
        "type": [
          {
            "code": "string",
            "profile": [
              "https://example.org/fhir/StructureDefinition/MyPatient"
            ]
          }
        ]
      },
      {
        "id": "Observation.subject.reference.identifier",
        "path": "Observation.subject.reference.identifier",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "system"
            }
          ],
          "rules": "open"
        },
        "min": 1
      },
      {
        "id": "Observation.effective[x]",
        "path": "Observation.effective[x]",
        "label": "TestDate",
        "min": 1,
        "type": [
          {
            "code": "dateTime"
          },
          {
            "code": "Timing"
          }
        ]
      },
      {
        "id": "Observation.method",
        "path": "Observation.method",
        "label": "Stimulus",
        "min": 1
      },
      {
        "id": "Observation.derivedFrom",
        "path": "Observation.derivedFrom",
        "max": "1",
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "http://hl7.org/fhir/StructureDefinition/Media"
            ]
          }
        ]
      },
      {
        "id": "Observation.component.referenceRange",
        "path": "Observation.component.referenceRange",
        "contentReference": "http://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange"
      }
    ]
  }
}