{
  "resourceType": "StructureDefinition",
  "meta": {
    "lastUpdated": "2019-03-12T19:10:50.5637971+00:00"
  },
  "url": "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-obs-sort-key",
  "name": "observation-sortKey",
  "status": "draft",
  "date": "2019-03-12T19:10:50.3766453+00:00",
  "description": "Allows laboratories to suggest the sequence of test results within a single test request to simplify the display of the patient report by other external systems (e.g., a practitioner’s electronic medical record system).",
  "purpose": "To allow laboratories to suggest the sequence of test results within a single test request",
  "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",
        "path": "Extension",
        "max": "1",
        "mustSupport": false,
        "isModifier": false
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-obs-sort-key"
      },
      {
        "id": "Extension.value[x]:valueString",
        "path": "Extension.valueString",
        "sliceName": "valueString",
        "min": 1,
        "type": [
          {
            "code": "string"
          }
        ],
        "mustSupport": true
      }
    ]
  }
}