{
  "resourceType": "StructureDefinition",
  "id": "ae29f41f-303d-4b42-bb13-591487fe2b19",
  "meta": {
    "lastUpdated": "2022-01-28T09:16:12.028+00:00"
  },
  "url": "https://example.org/fhir/StructureDefinition/MyObservation",
  "name": "MyObservation",
  "status": "draft",
  "date": "2022-01-28T09:05:29.4662227+00:00",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Observation",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Observation",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Observation.code",
        "path": "Observation.code",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "coding.system"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Observation.code:LOINCCODE",
        "path": "Observation.code",
        "sliceName": "LOINCCODE"
      },
      {
        "id": "Observation.code:LOINCCODE.coding.system",
        "path": "Observation.code.coding.system",
        "min": 1,
        "fixedUri": "http://loinc.org"
      },
      {
        "id": "Observation.code:LOINCCODE.coding.code",
        "path": "Observation.code.coding.code",
        "min": 1,
        "fixedCode": "85354-9"
      },
      {
        "id": "Observation.code:LOINCCODE.coding.display",
        "path": "Observation.code.coding.display",
        "min": 1,
        "fixedString": "Blood pressure panel with all children optional"
      },
      {
        "id": "Observation.code:SNOMEDCT",
        "path": "Observation.code",
        "sliceName": "SNOMEDCT"
      },
      {
        "id": "Observation.code:SNOMEDCT.coding.system",
        "path": "Observation.code.coding.system",
        "fixedUri": "http://snomed.info/sct"
      },
      {
        "id": "Observation.code:SNOMEDCT.coding.code",
        "path": "Observation.code.coding.code",
        "fixedCode": "75367002"
      },
      {
        "id": "Observation.code:SNOMEDCT.coding.display",
        "path": "Observation.code.coding.display",
        "fixedString": "Blood pressure"
      },
      {
        "id": "Observation.value[x]",
        "path": "Observation.value[x]",
        "min": 1,
        "type": [
          {
            "code": "Quantity"
          }
        ]
      },
      {
        "id": "Observation.value[x].unit",
        "path": "Observation.value[x].unit",
        "fixedString": "mmHg"
      },
      {
        "id": "Observation.value[x].system",
        "path": "Observation.value[x].system",
        "fixedUri": "http://unitsofmeasure.org"
      },
      {
        "id": "Observation.value[x].code",
        "path": "Observation.value[x].code",
        "fixedCode": "mm[Hg]"
      },
      {
        "id": "Observation.bodySite",
        "path": "Observation.bodySite",
        "max": "0"
      },
      {
        "id": "Observation.component",
        "path": "Observation.component",
        "max": "0"
      }
    ]
  }
}