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Source1

{
  "resourceType": "StructureDefinition",
  "url": "http://ontariohealth.ca/fhir/StructureDefinition/ca-on-phsd-ext-wait-times",
  "version": "1.0.0",
  "name": "WaitTimesExtension",
  "status": "draft",
  "fhirVersion": "4.0.1",
  "mapping": [
    {
      "identity": "WTIS-MDS",
      "name": "WTIS MDS data dictionary"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "PractitionerRole.specialty"
    },
    {
      "type": "element",
      "expression": "HealthcareService.type"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension.extension:type",
        "path": "Extension.extension",
        "sliceName": "type",
        "max": "1",
        "mustSupport": true,
        "mapping": [
          {
            "identity": "WTIS-MDS",
            "map": "Wait1, Wait2",
            "comment": "\"w1\" for wait1, \"w2\" for wait2, \"srw1\" for self reported wait 1, \"srw2\" for self reported wait 2"
          }
        ]
      },
      {
        "id": "Extension.extension:type.url",
        "path": "Extension.extension.url",
        "fixedUri": "type"
      },
      {
        "id": "Extension.extension:type.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "Coding"
          }
        ],
        "mustSupport": true,
        "binding": {
          "strength": "required",
          "description": "Type of wait time",
          "valueSet": "http://ontariohealth.ca/fhir/ValueSet/wait-time-type"
        }
      },
      {
        "id": "Extension.extension:length",
        "path": "Extension.extension",
        "sliceName": "length",
        "max": "1",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:length.url",
        "path": "Extension.extension.url",
        "fixedUri": "length"
      },
      {
        "id": "Extension.extension:length.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "Duration",
            "profile": [
              "http://ontariohealth.ca/fhir/StructureDefinition/ca-on-phsd-wait-time-Duration"
            ]
          },
          {
            "code": "Range"
          }
        ],
        "mustSupport": true,
        "mapping": [
          {
            "identity": "WTIS-MDS",
            "map": "Wait time (days or weeks)",
            "comment": "if wait time is exact number of days, use valueDuration. If wait time is range, use valueRange"
          }
        ]
      },
      {
        "id": "Extension.extension:priority",
        "path": "Extension.extension",
        "sliceName": "priority",
        "max": "1",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:priority.url",
        "path": "Extension.extension.url",
        "fixedUri": "priority"
      },
      {
        "id": "Extension.extension:priority.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "Coding"
          }
        ],
        "mustSupport": true,
        "binding": {
          "strength": "required",
          "valueSet": "http://ontariohealth.ca/fhir/ValueSet/wait-time-priority"
        },
        "mapping": [
          {
            "identity": "WTIS-MDS",
            "map": "wait time priority"
          }
        ]
      },
      {
        "id": "Extension.extension:access-target",
        "path": "Extension.extension",
        "sliceName": "access-target",
        "max": "1",
        "mustSupport": true,
        "mapping": [
          {
            "identity": "WTIS-MDS",
            "map": "access target (days)"
          }
        ]
      },
      {
        "id": "Extension.extension:access-target.url",
        "path": "Extension.extension.url",
        "fixedUri": "access-target"
      },
      {
        "id": "Extension.extension:access-target.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "Duration"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "Extension.extension:procedure-code",
        "path": "Extension.extension",
        "sliceName": "procedure-code",
        "max": "1",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:procedure-code.url",
        "path": "Extension.extension.url",
        "fixedUri": "procedure-code"
      },
      {
        "id": "Extension.extension:procedure-code.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "Coding"
          }
        ],
        "mustSupport": true,
        "binding": {
          "strength": "extensible",
          "description": "Surgical Procedure Codes",
          "valueSet": "http://ontariohealth.ca/fhir/ValueSet/wait-time-procedure-code"
        }
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://ontariohealth.ca/fhir/StructureDefinition/ca-on-phsd-ext-wait-times"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "max": "0"
      }
    ]
  }
}