{
  "resourceType": "StructureDefinition",
  "meta": {
    "lastUpdated": "2019-03-12T18:10:05.2734315+00:00"
  },
  "url": "http://hl7.org/fhir/StructureDefinition/observation-eventTiming",
  "name": "request-eventTiming",
  "status": "draft",
  "date": "2019-03-12T18:10:05.0780542+00:00",
  "description": "OLIS has additional values P and T for RequestPriority. Extension is added for P and T values",
  "purpose": "OLIS uses HL7 extension for the requestPriority (ProcedureRequest resource) to cover to additional OLIS values P and T.",
  "fhirVersion": "3.0.1",
  "kind": "complex-type",
  "abstract": false,
  "contextType": "resource",
  "context": [
    "ProcedureRequest"
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "definition": "The extension used for P Preoperative (to be done prior to surgery) and T Timing critical (do as near as possible to requested time) codes",
        "mustSupport": false
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Extension.extension:code",
        "path": "Extension.extension",
        "sliceName": "code",
        "max": "1",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:code.url",
        "path": "Extension.extension.url",
        "fixedUri": "code"
      },
      {
        "id": "Extension.extension:code.value[x]:valueCodeableConcept",
        "path": "Extension.extension.valueCodeableConcept",
        "sliceName": "valueCodeableConcept",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "Extension.extension:code.value[x]:valueCodeableConcept.coding",
        "path": "Extension.extension.valueCodeableConcept.coding",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:code.value[x]:valueCodeableConcept.coding.code",
        "path": "Extension.extension.valueCodeableConcept.coding.code",
        "min": 1,
        "fixedCode": "Can be P or T values",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:offset",
        "path": "Extension.extension",
        "sliceName": "offset",
        "max": "1",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:offset.url",
        "path": "Extension.extension.url",
        "fixedUri": "offset"
      },
      {
        "id": "Extension.extension:offset.value[x]:valueQuantity",
        "path": "Extension.extension.valueQuantity",
        "sliceName": "valueQuantity",
        "type": [
          {
            "code": "Quantity"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "Extension.extension:offset.value[x]:valueQuantity.value",
        "path": "Extension.extension.valueQuantity.value",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:offset.value[x]:valueQuantity.unit",
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
            "valueBoolean": true
          }
        ],
        "path": "Extension.extension.valueQuantity.unit",
        "short": "Unit representation (seconds, minutes, hours. days and etc..)",
        "mustSupport": true
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/observation-eventTiming"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "max": "0"
      }
    ]
  }
}