{
  "description": "CorHealth Base Observation",
  "_filename": "StructureDefinition-corhealth-observation.json",
  "package_name": "ca.on.oh.corhealth",
  "date": null,
  "derivation": "constraint",
  "publisher": null,
  "fhirVersion": "4.0.1",
  "name": "CorHealthObservation",
  "abstract": false,
  "type": "Observation",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "title": "CorHealth Base Observation",
  "package_version": "0.2.0-beta",
  "status": "active",
  "id": "c57f1736-905a-499e-b1c2-b1fe105b1ebc",
  "kind": "resource",
  "url": "https://corhealth-ontario.ca/fhir/StructureDefinition/corhealth-observation",
  "version": null,
  "differential": {
    "element": [ {
      "id": "Observation",
      "path": "Observation",
      "constraint": [ {
        "key": "corhealth-obs-1",
        "human": "Observation.value or Observation.dataAbsentReason SHALL be present",
        "source": "https://corhealth-ontario.ca/fhir/StructureDefinition/corhealth-observation",
        "severity": "error",
        "expression": "value.exists() or dataAbsentReason.exists()"
      } ]
    }, {
      "id": "Observation.identifier.system",
      "min": 1,
      "path": "Observation.identifier.system",
      "patternUri": "https://corhealth-ontario.ca/fhir/NamingSystem/observation-order-id"
    }, {
      "id": "Observation.identifier.value",
      "min": 1,
      "path": "Observation.identifier.value"
    }, {
      "id": "Observation.status",
      "path": "Observation.status",
      "patternCode": "final"
    }, {
      "id": "Observation.code",
      "path": "Observation.code",
      "binding": {
        "strength": "required",
        "valueSet": "https://corhealth-ontario.ca/fhir/ValueSet/CorHealthDataElementObservationVS"
      }
    }, {
      "id": "Observation.subject",
      "min": 1,
      "path": "Observation.subject",
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "https://corhealth-ontario.ca/fhir/StructureDefinition/corhealth-patient" ]
      } ],
      "mustSupport": true
    }, {
      "id": "Observation.value[x]",
      "path": "Observation.value[x]",
      "mustSupport": true
    }, {
      "id": "Observation.dataAbsentReason",
      "path": "Observation.dataAbsentReason",
      "binding": {
        "strength": "required",
        "valueSet": "https://corhealth-ontario.ca/fhir/ValueSet/CorHealthDataAbsentReasonVS"
      },
      "mustSupport": true
    } ]
  },
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Observation"
}