{
  "resourceType": "StructureDefinition",
  "id": "kfdrc-phenotype",
  "meta": {
    "lastUpdated": "2020-05-19T13:19:36.404+00:00"
  },
  "url": "http://fhir.kids-first.io/StructureDefinition/kfdrc-phenotype",
  "version": "0.1.0",
  "name": "kfdrc-phenotype",
  "title": "Kids First DRC Phenotype",
  "status": "draft",
  "fhirVersion": "4.0.0",
  "kind": "resource",
  "abstract": false,
  "type": "Observation",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Observation",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Observation",
        "path": "Observation"
      },
      {
        "id": "Observation.extension",
        "path": "Observation.extension"
      },
      {
        "id": "Observation.extension:age-at-event",
        "path": "Observation.extension",
        "sliceName": "age-at-event",
        "sliceIsConstraining": false,
        "label": "age_at_event",
        "short": "Age at the time of phenotype observation",
        "definition": "Age (in days since birth) of the Kids First DRC Patient at the time of phenotype observation.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "http://fhir.kids-first.io/StructureDefinition/age-at-event"
            ]
          }
        ],
        "mustSupport": true,
        "isModifier": false
      }
    ]
  }
}