Cross-Version Extension for CommunicationRequest.reasonReference in R4

Context of Use

This extension may be used in the following contexts:

• element CommunicationRequest (For version R5)
• extension http://hl7.org/fhir/5.0/StructureDefinition/extension-CommunicationRequest
• element CommunicationRequest (For version R3)
• extension http://hl7.org/fhir/3.0/StructureDefinition/extension-CommunicationRequest
• element CommunicationRequest (For version R2)
• extension http://hl7.org/fhir/1.0/StructureDefinition/extension-CommunicationRequest

Name	Flags	Card.	Type	Description & Constraints
Extension		0..*	Extension	Why is communication needed?
extension		..0
value[x]		1..	Reference()
url				"http://hl7.org/fhir/4.0/StructureDefinition/extension-CommunicationRequest.reasonReference"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r4-cmr.reasonReference",
  "url" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-CommunicationRequest.reasonReference",
  "name" : "XVerExtensionCommunicationRequest.reasonReferenceR4",
  "title" : "Cross-Version Extension for CommunicationRequest.reasonReference in R4",
  "status" : "active",
  "experimental" : false,
  "publisher" : "Health Level Seven International (Patient Care)",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/patientcare/index.cfm"
    }]
  }],
  "description" : "Cross-Version Extension for CommunicationRequest.reasonReference. Valid in versions R2, R3, R5\r\n\r\nThis is a valid extension because it has the target resources DiagnosticReport, DocumentReference",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001"
    }]
  }],
  "fhirVersion" : "5.0.0",
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [{
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "5.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "5.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "CommunicationRequest"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/5.0/StructureDefinition/extension-CommunicationRequest"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "3.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "3.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "CommunicationRequest"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-CommunicationRequest"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "CommunicationRequest"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/1.0/StructureDefinition/extension-CommunicationRequest"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Why is communication needed?",
      "definition" : "Indicates another resource whose existence justifies this request.",
      "min" : 0,
      "max" : "*",
      "isModifier" : false,
      "mapping" : [{
        "identity" : "workflow",
        "map" : "Request.reasonReference"
      },
      {
        "identity" : "w5",
        "map" : "FiveWs.why[x]"
      },
      {
        "identity" : "rim",
        "map" : ".outboundRelationship[typeCode=RSON].target"
      }]
    },
    {
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "Reference"
      }]
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-CommunicationRequest.reasonReference"
    }]
  }
}