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Source1

{
  "resourceType": "ConceptMap",
  "id": "R4-MessageDefinition-element-map-to-R4B",
  "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-r4.r4b"
          }
        ]
      }
    },
    {
      "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-r4.r4b"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/uv/xver/ConceptMap/R4-MessageDefinition-element-map-to-R4B",
  "version": "0.1.0",
  "name": "R4MessageDefinitionElementMapToR4B",
  "title": "Cross-version mapping for FHIR R4 MessageDefinition to FHIR R4B MessageDefinition",
  "status": "active",
  "experimental": false,
  "date": "2026-03-17T16:03:43.0753142-05:00",
  "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 R4 MessageDefinition to FHIR R4B.",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "sourceCanonical": "http://hl7.org/fhir/4.0",
  "targetUri": "http://hl7.org/fhir/4.3",
  "group": [
    {
      "source": "http://hl7.org/fhir/StructureDefinition/MessageDefinition",
      "sourceVersion": "4.0.1",
      "target": "http://hl7.org/fhir/StructureDefinition/MessageDefinition",
      "targetVersion": "4.3.0",
      "element": [
        {
          "code": "MessageDefinition.meta",
          "display": "meta",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.meta",
              "display": "MessageDefinition.meta",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.meta` is mapped to FHIR R4B element `MessageDefinition.meta` as `Equivalent`."
            }
          ]
        },
        {
          "code": "MessageDefinition.implicitRules",
          "display": "implicitRules",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.implicitRules",
              "display": "MessageDefinition.implicitRules",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.implicitRules` is mapped to FHIR R4B element `MessageDefinition.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. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc."
            }
          ]
        },
        {
          "code": "MessageDefinition.language",
          "display": "language",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.language",
              "display": "MessageDefinition.language",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.language` is mapped to FHIR R4B element `MessageDefinition.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": "MessageDefinition.text",
          "display": "text",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.text",
              "display": "MessageDefinition.text",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.text` is mapped to FHIR R4B element `MessageDefinition.text` as `Equivalent`.\nContained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied).  This may be necessary for data from legacy systems where information is captured as a \"text blob\" or where text is additionally entered raw or narrated and encoded information is added later."
            }
          ]
        },
        {
          "code": "MessageDefinition.contained",
          "display": "contained",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.contained",
              "display": "MessageDefinition.contained",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.contained` is mapped to FHIR R4B element `MessageDefinition.contained` as `Equivalent`.\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. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels."
            }
          ]
        },
        {
          "code": "MessageDefinition.url",
          "display": "url",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.url",
              "display": "MessageDefinition.url",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.url` is mapped to FHIR R4B element `MessageDefinition.url` as `Equivalent`.\nCan be a urn:uuid: or a urn:oid: but real http: addresses are preferred.  Multiple instances may share the same URL if they have a distinct version.\n\nThe determination of when to create a new version of a resource (same url, new version) vs. defining a new artifact is up to the author.  Considerations for making this decision are found in [Technical and Business Versions](https://hl7.org/fhir/resource..html#versions). \n\nIn some cases, the resource can no longer be found at the stated url, but the url itself cannot change. Implementations can use the [meta.source](https://hl7.org/fhir/resou.html#meta) element to indicate where the current master source of the resource can be found."
            }
          ]
        },
        {
          "code": "MessageDefinition.identifier",
          "display": "identifier",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.identifier",
              "display": "MessageDefinition.identifier",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.identifier` is mapped to FHIR R4B element `MessageDefinition.identifier` as `Equivalent`.\nTypically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this message definition outside of FHIR, where it is not possible to use the logical URI."
            }
          ]
        },
        {
          "code": "MessageDefinition.version",
          "display": "version",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.version",
              "display": "MessageDefinition.version",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.version` is mapped to FHIR R4B element `MessageDefinition.version` as `Equivalent`.\nThere may be different message definition instances that have the same identifier but different versions.  The version can be appended to the url in a reference to allow a reference to a particular business version of the message definition with the format [url]|[version]."
            }
          ]
        },
        {
          "code": "MessageDefinition.name",
          "display": "name",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.name",
              "display": "MessageDefinition.name",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.name` is mapped to FHIR R4B element `MessageDefinition.name` as `Equivalent`.\nThe name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly."
            }
          ]
        },
        {
          "code": "MessageDefinition.title",
          "display": "title",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.title",
              "display": "MessageDefinition.title",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.title` is mapped to FHIR R4B element `MessageDefinition.title` as `Equivalent`.\nThis name does not need to be machine-processing friendly and may contain punctuation, white-space, etc."
            }
          ]
        },
        {
          "code": "MessageDefinition.replaces",
          "display": "replaces",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.replaces",
              "display": "MessageDefinition.replaces",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.replaces` is mapped to FHIR R4B element `MessageDefinition.replaces` as `Equivalent`."
            }
          ]
        },
        {
          "code": "MessageDefinition.status",
          "display": "status",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.status",
              "display": "MessageDefinition.status",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.status` is mapped to FHIR R4B element `MessageDefinition.status` as `Equivalent`.\nAllows filtering of message definitions that are appropriate for use versus not."
            }
          ]
        },
        {
          "code": "MessageDefinition.experimental",
          "display": "experimental",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.experimental",
              "display": "MessageDefinition.experimental",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.experimental` is mapped to FHIR R4B element `MessageDefinition.experimental` as `Equivalent`.\nAllows filtering of message definitions that are appropriate for use versus not."
            }
          ]
        },
        {
          "code": "MessageDefinition.date",
          "display": "date",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.date",
              "display": "MessageDefinition.date",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.date` is mapped to FHIR R4B element `MessageDefinition.date` as `Equivalent`.\nNote that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the message definition. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource."
            }
          ]
        },
        {
          "code": "MessageDefinition.publisher",
          "display": "publisher",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.publisher",
              "display": "MessageDefinition.publisher",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.publisher` is mapped to FHIR R4B element `MessageDefinition.publisher` as `Equivalent`.\nUsually an organization but may be an individual. The publisher (or steward) of the message definition is the organization or individual primarily responsible for the maintenance and upkeep of the message definition. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the message definition. This item SHOULD be populated unless the information is available from context."
            }
          ]
        },
        {
          "code": "MessageDefinition.contact",
          "display": "contact",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.contact",
              "display": "MessageDefinition.contact",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.contact` is mapped to FHIR R4B element `MessageDefinition.contact` as `Equivalent`.\nMay be a web site, an email address, a telephone number, etc."
            }
          ]
        },
        {
          "code": "MessageDefinition.description",
          "display": "description",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.description",
              "display": "MessageDefinition.description",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.description` is mapped to FHIR R4B element `MessageDefinition.description` as `Equivalent`.\nThis description can be used to capture details such as why the message definition was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the message definition as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the message definition is presumed to be the predominant language in the place the message definition was created)."
            }
          ]
        },
        {
          "code": "MessageDefinition.useContext",
          "display": "useContext",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.useContext",
              "display": "MessageDefinition.useContext",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.useContext` is mapped to FHIR R4B element `MessageDefinition.useContext` as `Equivalent`.\nWhen multiple useContexts are specified, there is no expectation that all or any of the contexts apply."
            }
          ]
        },
        {
          "code": "MessageDefinition.jurisdiction",
          "display": "jurisdiction",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.jurisdiction",
              "display": "MessageDefinition.jurisdiction",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.jurisdiction` is mapped to FHIR R4B element `MessageDefinition.jurisdiction` as `Equivalent`.\nIt may be possible for the message definition to be used in jurisdictions other than those for which it was originally designed or intended."
            }
          ]
        },
        {
          "code": "MessageDefinition.purpose",
          "display": "purpose",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.purpose",
              "display": "MessageDefinition.purpose",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.purpose` is mapped to FHIR R4B element `MessageDefinition.purpose` as `Equivalent`.\nThis element does not describe the usage of the message definition. Instead, it provides traceability of ''why'' the resource is either needed or ''why'' it is defined as it is.  This may be used to point to source materials or specifications that drove the structure of this message definition."
            }
          ]
        },
        {
          "code": "MessageDefinition.copyright",
          "display": "copyright",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.copyright",
              "display": "MessageDefinition.copyright",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.copyright` is mapped to FHIR R4B element `MessageDefinition.copyright` as `Equivalent`."
            }
          ]
        },
        {
          "code": "MessageDefinition.base",
          "display": "base",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.base",
              "display": "MessageDefinition.base",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.base` is mapped to FHIR R4B element `MessageDefinition.base` as `Equivalent`."
            }
          ]
        },
        {
          "code": "MessageDefinition.parent",
          "display": "parent",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.parent",
              "display": "MessageDefinition.parent",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.parent` is mapped to FHIR R4B element `MessageDefinition.parent` as `Equivalent`.\nIt should be possible to use MessageDefinition to describe a message to be used by certain steps in a particular protocol as part of a PlanDefinition or ActivityDefinition."
            }
          ]
        },
        {
          "code": "MessageDefinition.event[x]",
          "display": "event[x]",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.event[x]",
              "display": "MessageDefinition.event[x]",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.event[x]` is mapped to FHIR R4B element `MessageDefinition.event[x]` as `Equivalent`.\nThe target context `MessageDefinition.event[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `MessageDefinition`."
            }
          ]
        },
        {
          "code": "MessageDefinition.category",
          "display": "category",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.category",
              "display": "MessageDefinition.category",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.category` is mapped to FHIR R4B element `MessageDefinition.category` as `Equivalent`."
            }
          ]
        },
        {
          "code": "MessageDefinition.focus",
          "display": "focus",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "wider"
                }
              ],
              "code": "MessageDefinition.focus",
              "display": "MessageDefinition.focus",
              "equivalence": "wider",
              "comment": "Element `MessageDefinition.focus` is mapped to FHIR R4B element `MessageDefinition.focus` as `Equivalent`."
            }
          ]
        },
        {
          "code": "MessageDefinition.focus.code",
          "display": "code",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "wider"
                }
              ],
              "code": "MessageDefinition.focus.code",
              "display": "MessageDefinition.focus.code",
              "equivalence": "wider",
              "comment": "Element `MessageDefinition.focus.code` is mapped to FHIR R4B element `MessageDefinition.focus.code` as `SourceIsBroaderThanTarget`.\nMultiple focuses addressing different resources may occasionally occur.  E.g. to link or unlink a resource from a particular account or encounter, etc."
            }
          ]
        },
        {
          "code": "MessageDefinition.focus.profile",
          "display": "profile",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.focus.profile",
              "display": "MessageDefinition.focus.profile",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.focus.profile` is mapped to FHIR R4B element `MessageDefinition.focus.profile` as `Equivalent`.\nThis should be present for most message definitions.  However, if the message focus is only a single resource and there is no need to include referenced resources or otherwise enforce the presence of particular elements, it can be omitted."
            }
          ]
        },
        {
          "code": "MessageDefinition.focus.min",
          "display": "min",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.focus.min",
              "display": "MessageDefinition.focus.min",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.focus.min` is mapped to FHIR R4B element `MessageDefinition.focus.min` as `Equivalent`."
            }
          ]
        },
        {
          "code": "MessageDefinition.focus.max",
          "display": "max",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.focus.max",
              "display": "MessageDefinition.focus.max",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.focus.max` is mapped to FHIR R4B element `MessageDefinition.focus.max` as `Equivalent`."
            }
          ]
        },
        {
          "code": "MessageDefinition.responseRequired",
          "display": "responseRequired",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.responseRequired",
              "display": "MessageDefinition.responseRequired",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.responseRequired` is mapped to FHIR R4B element `MessageDefinition.responseRequired` as `Equivalent`.\nThis enables the capability currently available through MSH-16 (Application Level acknowledgement) in HL7 Version 2 to declare at a message instance level whether a response is required or only upon error or success, or never."
            }
          ]
        },
        {
          "code": "MessageDefinition.allowedResponse",
          "display": "allowedResponse",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "wider"
                }
              ],
              "code": "MessageDefinition.allowedResponse",
              "display": "MessageDefinition.allowedResponse",
              "equivalence": "wider",
              "comment": "Element `MessageDefinition.allowedResponse` is mapped to FHIR R4B element `MessageDefinition.allowedResponse` as `Equivalent`.\nThis indicates an application level response to \"close\" a transaction implicit in a particular request message.  To define a complete workflow scenario, look to the [[PlanDefinition]] resource which allows the definition of complex orchestrations, conditionality, etc."
            }
          ]
        },
        {
          "code": "MessageDefinition.allowedResponse.message",
          "display": "message",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.allowedResponse.message",
              "display": "MessageDefinition.allowedResponse.message",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.allowedResponse.message` is mapped to FHIR R4B element `MessageDefinition.allowedResponse.message` as `Equivalent`."
            }
          ]
        },
        {
          "code": "MessageDefinition.allowedResponse.situation",
          "display": "situation",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.allowedResponse.situation",
              "display": "MessageDefinition.allowedResponse.situation",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.allowedResponse.situation` is mapped to FHIR R4B element `MessageDefinition.allowedResponse.situation` as `Equivalent`."
            }
          ]
        },
        {
          "code": "MessageDefinition.graph",
          "display": "graph",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "MessageDefinition.graph",
              "display": "MessageDefinition.graph",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.graph` is mapped to FHIR R4B element `MessageDefinition.graph` as `Equivalent`."
            }
          ]
        }
      ]
    },
    {
      "source": "http://hl7.org/fhir/StructureDefinition/MessageDefinition",
      "sourceVersion": "4.0.1",
      "target": "http://hl7.org/fhir/4.0/StructureDefinition/extension-MessageDefinition.focus.code",
      "targetVersion": "0.1.0",
      "element": [
        {
          "code": "MessageDefinition.focus.code",
          "display": "code",
          "target": [
            {
              "modifierExtension": [
                {
                  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ConceptMap.element.target.equivalence",
                  "valueCode": "equivalent"
                }
              ],
              "code": "Extension",
              "equivalence": "equivalent",
              "comment": "Element `MessageDefinition.focus.code` is mapped to FHIR R4B element `MessageDefinition.focus.code` as `SourceIsBroaderThanTarget`.\nMultiple focuses addressing different resources may occasionally occur.  E.g. to link or unlink a resource from a particular account or encounter, etc."
            }
          ]
        }
      ]
    }
  ]
}