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{
  "resourceType": "ConceptMap",
  "id": "R2-Communication-element-map-to-R4",
  "text": {
    "status": "generated",
    "div": "<!-- snip (see above) -->"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "fhir"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 0,
      "_valueInteger": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
          }
        ]
      }
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "trial-use",
      "_valueCode": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/uv/xver/ConceptMap/R2-Communication-element-map-to-R4",
  "version": "0.1.0",
  "name": "R2CommunicationElementMapToR4",
  "title": "Cross-version mapping for FHIR DSTU2 Communication to FHIR R4 Communication",
  "status": "active",
  "experimental": false,
  "date": "2026-03-17T16:04:02.53332-05:00",
  "contact": [
    {
      "name": "FHIR Infrastructure",
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/fiwg"
        }
      ]
    }
  ],
  "description": "This ConceptMap represents cross-version mappings for elements from a FHIR DSTU2 Communication to FHIR R4.",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "sourceCanonical": "http://hl7.org/fhir/1.0",
  "targetUri": "http://hl7.org/fhir/4.0",
  "group": [
    {
      "source": "http://hl7.org/fhir/StructureDefinition/Communication",
      "sourceVersion": "1.0.2",
      "target": "http://hl7.org/fhir/StructureDefinition/Communication",
      "targetVersion": "4.0.1",
      "element": [
        {
          "code": "Communication.meta",
          "display": "meta",
          "target": [
            {
              "code": "Communication.meta",
              "display": "Communication.meta",
              "equivalence": "wider",
              "comment": "Element `Communication.meta` is mapped to FHIR R4 element `Communication.meta` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.meta` do not cover the following types: Meta.\nThe mappings for `Communication.meta` do not cover the following types based on type expansion: lastUpdated, profile, security, tag, versionId."
            }
          ]
        },
        {
          "code": "Communication.implicitRules",
          "display": "implicitRules",
          "target": [
            {
              "code": "Communication.implicitRules",
              "display": "Communication.implicitRules",
              "equivalence": "equivalent",
              "comment": "Element `Communication.implicitRules` is mapped to FHIR R4 element `Communication.implicitRules` as `Equivalent`.\nAsserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element as much as possible."
            }
          ]
        },
        {
          "code": "Communication.language",
          "display": "language",
          "target": [
            {
              "code": "Communication.language",
              "display": "Communication.language",
              "equivalence": "equivalent",
              "comment": "Element `Communication.language` is mapped to FHIR R4 element `Communication.language` as `Equivalent`.\nLanguage is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies  to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource  Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute)."
            }
          ]
        },
        {
          "code": "Communication.text",
          "display": "text",
          "target": [
            {
              "code": "Communication.text",
              "display": "Communication.text",
              "equivalence": "wider",
              "comment": "Element `Communication.text` is mapped to FHIR R4 element `Communication.text` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.text` do not cover the following types: Narrative.\nThe mappings for `Communication.text` do not cover the following types based on type expansion: div, status.\nContained resources do not have narrative. Resources that are not contained SHOULD have a narrative."
            }
          ]
        },
        {
          "code": "Communication.contained",
          "display": "contained",
          "target": [
            {
              "code": "Communication.contained",
              "display": "Communication.contained",
              "equivalence": "equivalent",
              "comment": "Element `Communication.contained` is mapped to FHIR R4 element `Communication.contained` as `SourceIsBroaderThanTarget`.\nThis should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again."
            }
          ]
        },
        {
          "code": "Communication.identifier",
          "display": "identifier",
          "target": [
            {
              "code": "Communication.identifier",
              "display": "Communication.identifier",
              "equivalence": "wider",
              "comment": "Element `Communication.identifier` is mapped to FHIR R4 element `Communication.identifier` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.identifier` do not cover the following types: Identifier.\nThe mappings for `Communication.identifier` do not cover the following types based on type expansion: assigner, period, system, type, use, value."
            }
          ]
        },
        {
          "code": "Communication.category",
          "display": "category",
          "target": [
            {
              "code": "Communication.category",
              "display": "Communication.category",
              "equivalence": "equivalent",
              "comment": "Element `Communication.category` is mapped to FHIR R4 element `Communication.category` as `SourceIsNarrowerThanTarget`."
            }
          ]
        },
        {
          "code": "Communication.sender",
          "display": "sender",
          "target": [
            {
              "code": "Communication.sender",
              "display": "Communication.sender",
              "equivalence": "wider",
              "comment": "Element `Communication.sender` is mapped to FHIR R4 element `Communication.sender` as `RelatedTo`.\nThe standard extension `alternate-reference` has been mapped as the representation of FHIR DSTU2 element `Communication.sender` with unmapped reference targets: Device, Organization, Patient, Practitioner, RelatedPerson."
            }
          ]
        },
        {
          "code": "Communication.recipient",
          "display": "recipient",
          "target": [
            {
              "code": "Communication.recipient",
              "display": "Communication.recipient",
              "equivalence": "wider",
              "comment": "Element `Communication.recipient` is mapped to FHIR R4 element `Communication.recipient` as `RelatedTo`.\nThe standard extension `alternate-reference` has been mapped as the representation of FHIR DSTU2 element `Communication.recipient` with unmapped reference targets: Device, Group, Organization, Patient, Practitioner, RelatedPerson."
            }
          ]
        },
        {
          "code": "Communication.payload",
          "display": "payload",
          "target": [
            {
              "code": "Communication.payload",
              "display": "Communication.payload",
              "equivalence": "wider",
              "comment": "Element `Communication.payload` is mapped to FHIR R4 element `Communication.payload` as `Equivalent`."
            }
          ]
        },
        {
          "code": "Communication.payload.content[x]",
          "display": "content[x]",
          "target": [
            {
              "code": "Communication.payload.content[x]",
              "display": "Communication.payload.content[x]",
              "equivalence": "wider",
              "comment": "Element `Communication.payload.content[x]` is mapped to FHIR R4 element `Communication.payload.content[x]` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.payload.content[x]` do not cover the following types: Attachment.\nThe target context `Communication.payload.content[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `Communication.payload`.\nThe standard extension `alternate-reference` has been mapped as PART of the representation of FHIR DSTU2 element `Communication.payload.content[x]` with unmapped reference targets: Resource.\nSource element `Communication.payload.content[x]` has unmapped reference types. While the target element `Communication.payload.content[x]` is a choice type and does not allow extensions, the `alternate-reference` extension can be applied to Reference values within it."
            }
          ]
        },
        {
          "code": "Communication.medium",
          "display": "medium",
          "target": [
            {
              "code": "Communication.medium",
              "display": "Communication.medium",
              "equivalence": "equivalent",
              "comment": "Element `Communication.medium` is mapped to FHIR R4 element `Communication.medium` as `Equivalent`."
            }
          ]
        },
        {
          "code": "Communication.status",
          "display": "status",
          "target": [
            {
              "code": "Communication.status",
              "display": "Communication.status",
              "equivalence": "wider",
              "comment": "Element `Communication.status` is mapped to FHIR R4 element `Communication.status` as `RelatedTo`.\nThe mappings for `Communication.status` do not allow expression of the necessary codes, per the bindings on the source and target.\nThe target context `Communication.status` is a modifier element, so this extension does not need to be defined as a modifier."
            }
          ]
        },
        {
          "code": "Communication.encounter",
          "display": "encounter",
          "target": [
            {
              "code": "Communication.encounter",
              "display": "Communication.encounter",
              "equivalence": "wider",
              "comment": "Element `Communication.encounter` is mapped to FHIR R4 element `Communication.encounter` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.encounter` do not cover the following types based on type expansion: display, reference.\nThe standard extension `alternate-reference` has been mapped as the representation of FHIR DSTU2 element `Communication.encounter` with unmapped reference targets: Encounter."
            }
          ]
        },
        {
          "code": "Communication.sent",
          "display": "sent",
          "target": [
            {
              "code": "Communication.sent",
              "display": "Communication.sent",
              "equivalence": "equivalent",
              "comment": "Element `Communication.sent` is mapped to FHIR R4 element `Communication.sent` as `Equivalent`."
            }
          ]
        },
        {
          "code": "Communication.received",
          "display": "received",
          "target": [
            {
              "code": "Communication.received",
              "display": "Communication.received",
              "equivalence": "equivalent",
              "comment": "Element `Communication.received` is mapped to FHIR R4 element `Communication.received` as `Equivalent`."
            }
          ]
        },
        {
          "code": "Communication.reason",
          "display": "reason",
          "target": [
            {
              "code": "Communication.reasonCode",
              "display": "Communication.reasonCode",
              "equivalence": "equivalent",
              "comment": "Element `Communication.reason` is mapped to FHIR R4 element `Communication.reasonCode` as `Equivalent`."
            }
          ]
        },
        {
          "code": "Communication.subject",
          "display": "subject",
          "target": [
            {
              "code": "Communication.subject",
              "display": "Communication.subject",
              "equivalence": "wider",
              "comment": "Element `Communication.subject` is mapped to FHIR R4 element `Communication.subject` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.subject` do not cover the following types based on type expansion: display, reference.\nThe standard extension `alternate-reference` has been mapped as the representation of FHIR DSTU2 element `Communication.subject` with unmapped reference targets: Patient."
            }
          ]
        },
        {
          "code": "Communication.requestDetail",
          "display": "requestDetail",
          "target": [
            {
              "code": "Communication.basedOn",
              "display": "Communication.basedOn",
              "equivalence": "relatedto",
              "comment": "Element `Communication.requestDetail` is mapped to FHIR R4 element `Communication.basedOn` as `RelatedTo`.\nThe mappings for `Communication.requestDetail` do not cover the following types based on type expansion: display, reference.\nThe standard extension `alternate-reference` has been mapped as the representation of FHIR DSTU2 element `Communication.requestDetail` with unmapped reference targets: CommunicationRequest."
            }
          ]
        }
      ]
    },
    {
      "source": "http://hl7.org/fhir/StructureDefinition/Communication",
      "sourceVersion": "1.0.2",
      "target": "http://hl7.org/fhir/1.0/StructureDefinition/extension-Communication.meta",
      "targetVersion": "0.1.0",
      "element": [
        {
          "code": "Communication.meta",
          "display": "meta",
          "target": [
            {
              "code": "Extension",
              "equivalence": "equivalent",
              "comment": "Element `Communication.meta` is mapped to FHIR R4 element `Communication.meta` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.meta` do not cover the following types: Meta.\nThe mappings for `Communication.meta` do not cover the following types based on type expansion: lastUpdated, profile, security, tag, versionId."
            }
          ]
        }
      ]
    },
    {
      "source": "http://hl7.org/fhir/StructureDefinition/Communication",
      "sourceVersion": "1.0.2",
      "target": "http://hl7.org/fhir/1.0/StructureDefinition/extension-Communication.text",
      "targetVersion": "0.1.0",
      "element": [
        {
          "code": "Communication.text",
          "display": "text",
          "target": [
            {
              "code": "Extension",
              "equivalence": "equivalent",
              "comment": "Element `Communication.text` is mapped to FHIR R4 element `Communication.text` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.text` do not cover the following types: Narrative.\nThe mappings for `Communication.text` do not cover the following types based on type expansion: div, status.\nContained resources do not have narrative. Resources that are not contained SHOULD have a narrative."
            }
          ]
        }
      ]
    },
    {
      "source": "http://hl7.org/fhir/StructureDefinition/Communication",
      "sourceVersion": "1.0.2",
      "target": "http://hl7.org/fhir/1.0/StructureDefinition/extension-Communication.identifier",
      "targetVersion": "0.1.0",
      "element": [
        {
          "code": "Communication.identifier",
          "display": "identifier",
          "target": [
            {
              "code": "Extension",
              "equivalence": "equivalent",
              "comment": "Element `Communication.identifier` is mapped to FHIR R4 element `Communication.identifier` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.identifier` do not cover the following types: Identifier.\nThe mappings for `Communication.identifier` do not cover the following types based on type expansion: assigner, period, system, type, use, value."
            }
          ]
        }
      ]
    },
    {
      "source": "http://hl7.org/fhir/StructureDefinition/Communication",
      "sourceVersion": "1.0.2",
      "target": "http://hl7.org/fhir/1.0/StructureDefinition/extension-Communication.payload.content",
      "targetVersion": "0.1.0",
      "element": [
        {
          "code": "Communication.payload.content[x]",
          "display": "content[x]",
          "target": [
            {
              "code": "Extension",
              "equivalence": "equivalent",
              "comment": "Element `Communication.payload.content[x]` is mapped to FHIR R4 element `Communication.payload.content[x]` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.payload.content[x]` do not cover the following types: Attachment.\nThe target context `Communication.payload.content[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `Communication.payload`.\nThe standard extension `alternate-reference` has been mapped as PART of the representation of FHIR DSTU2 element `Communication.payload.content[x]` with unmapped reference targets: Resource.\nSource element `Communication.payload.content[x]` has unmapped reference types. While the target element `Communication.payload.content[x]` is a choice type and does not allow extensions, the `alternate-reference` extension can be applied to Reference values within it."
            }
          ]
        }
      ]
    },
    {
      "source": "http://hl7.org/fhir/StructureDefinition/Communication",
      "sourceVersion": "1.0.2",
      "target": "http://hl7.org/fhir/StructureDefinition/alternate-reference",
      "targetVersion": "5.2.0",
      "element": [
        {
          "code": "Communication.payload.content[x]",
          "display": "content[x]",
          "target": [
            {
              "code": "Extension",
              "equivalence": "equivalent",
              "comment": "Element `Communication.payload.content[x]` is mapped to FHIR R4 element `Communication.payload.content[x]` as `SourceIsBroaderThanTarget`.\nThe mappings for `Communication.payload.content[x]` do not cover the following types: Attachment.\nThe target context `Communication.payload.content[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `Communication.payload`.\nThe standard extension `alternate-reference` has been mapped as PART of the representation of FHIR DSTU2 element `Communication.payload.content[x]` with unmapped reference targets: Resource.\nSource element `Communication.payload.content[x]` has unmapped reference types. While the target element `Communication.payload.content[x]` is a choice type and does not allow extensions, the `alternate-reference` extension can be applied to Reference values within it."
            }
          ]
        }
      ]
    },
    {
      "source": "http://hl7.org/fhir/StructureDefinition/Communication",
      "sourceVersion": "1.0.2",
      "target": "http://hl7.org/fhir/1.0/StructureDefinition/extension-Communication.status",
      "targetVersion": "0.1.0",
      "element": [
        {
          "code": "Communication.status",
          "display": "status",
          "target": [
            {
              "code": "Extension",
              "equivalence": "equivalent",
              "comment": "Element `Communication.status` is mapped to FHIR R4 element `Communication.status` as `RelatedTo`.\nThe mappings for `Communication.status` do not allow expression of the necessary codes, per the bindings on the source and target.\nThe target context `Communication.status` is a modifier element, so this extension does not need to be defined as a modifier."
            }
          ]
        }
      ]
    }
  ]
}