{
  "resourceType": "StructureDefinition",
  "id": "darc-ext",
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "trial-use"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 2
    }
  ],
  "url": "http://fhir.infoway-inforoute.ca/ca-ext/StructureDefinition/servicerequest-darc",
  "version": "1.1.0",
  "name": "DARC",
  "title": "Dates Affecting Readiness to Consult",
  "status": "draft",
  "experimental": false,
  "publisher": "Canada Health Infoway",
  "contact": [
    {
      "name": "National Standards Release Centre",
      "telecom": [
        {
          "system": "url",
          "value": "http://www.infoway-inforoute.ca"
        },
        {
          "system": "email",
          "value": "standards@infoway-inforoute.ca"
        }
      ]
    }
  ],
  "description": "DARC stands for 'Dates Affecting Readiness to Consult' and is defines as:\nPeriods of time between the referral and consult date when the patient is unavailable for a first consultation due to patient-related reasons.",
  "jurisdiction": [
    {
      "coding": [
        {
          "code": "CA",
          "system": "urn:iso:std:iso:3166"
        }
      ]
    }
  ],
  "copyright": "Copyright © 2025+ Canada Health Infoway. All rights reserved. [Terms of Use and License Agreements](https://ic.infoway-inforoute.ca/en/about/tou). [Privacy Policy](https://www.infoway-inforoute.ca/en/legal/privacy-policy).",
  "fhirVersion": "4.0.1",
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "expression": "ServiceRequest",
      "type": "element"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "definition": "DARC stands for 'Dates Affecting Readiness to Consult' and is defined as:\nPeriods of time between the referral and consult date when the patient is unavailable for a first consultation due to patient-related reasons."
      },
      {
        "id": "Extension.extension:StartDate",
        "path": "Extension.extension",
        "sliceName": "StartDate",
        "min": 0,
        "max": "1",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:StartDate.extension",
        "path": "Extension.extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.extension:StartDate.url",
        "path": "Extension.extension.url",
        "fixedUri": "StartDate"
      },
      {
        "id": "Extension.extension:StartDate.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "dateTime"
          }
        ]
      },
      {
        "id": "Extension.extension:EndDate",
        "path": "Extension.extension",
        "sliceName": "EndDate",
        "min": 0,
        "max": "1",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:EndDate.extension",
        "path": "Extension.extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.extension:EndDate.url",
        "path": "Extension.extension.url",
        "fixedUri": "EndDate"
      },
      {
        "id": "Extension.extension:EndDate.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "dateTime"
          }
        ]
      },
      {
        "id": "Extension.extension:DARCCodes",
        "path": "Extension.extension",
        "sliceName": "DARCCodes",
        "min": 0,
        "max": "1",
        "mustSupport": true
      },
      {
        "id": "Extension.extension:DARCCodes.extension",
        "path": "Extension.extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.extension:DARCCodes.url",
        "path": "Extension.extension.url",
        "fixedUri": "DARCCodes"
      },
      {
        "id": "Extension.extension:DARCCodes.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "binding": {
          "strength": "extensible",
          "valueSet": "https://fhir.infoway-inforoute.ca/io/CA-eReC/ValueSet/DARC-DART-reason"
        }
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://fhir.infoway-inforoute.ca/ca-ext/StructureDefinition/servicerequest-darc"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "max": "0"
      }
    ]
  }
}