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Packagehl7.fhir.uv.xver-r3.r4
Resource TypeConceptMap
IdConceptMap-R3-CodeSystem-element-map-to-R4.json
FHIR VersionR4
Sourcehttp://hl7.org/fhir/uv/xver-r3.r4/0.1.0/ConceptMap-R3-CodeSystem-element-map-to-R4.html
URLhttp://hl7.org/fhir/uv/xver/ConceptMap/R3-CodeSystem-element-map-to-R4
Version0.1.0
Statusactive
Date2026-03-17T16:03:23.2805467-05:00
NameR3CodeSystemElementMapToR4
TitleCross-version mapping for FHIR STU3 CodeSystem to FHIR R4 CodeSystem
Realmuv
Authorityhl7
DescriptionThis ConceptMap represents cross-version mappings for elements from a FHIR STU3 CodeSystem to FHIR R4.

Resources that use this resource

No resources found


Resources that this resource uses

No resources found


Narrative

Note: links and images are rebased to the (stated) source

Generated Narrative: ConceptMap R3-CodeSystem-element-map-to-R4

Mapping from http://hl7.org/fhir/3.0 to http://hl7.org/fhir/4.0


Group 1 Mapping from http://hl7.org/fhir/StructureDefinition/CodeSystem|3.0.2 to CodeSystemversion: 4.0.1)

Source CodeRelationshipTarget CodeComment
CodeSystem.meta (meta)is equivalent toCodeSystem.metaElement `CodeSystem.meta` is mapped to FHIR R4 element `CodeSystem.meta` as `Equivalent`.
CodeSystem.implicitRules (implicitRules)is equivalent toCodeSystem.implicitRulesElement `CodeSystem.implicitRules` is mapped to FHIR R4 element `CodeSystem.implicitRules` as `Equivalent`. Asserting 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. This element is labelled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation.
CodeSystem.language (language)is equivalent toCodeSystem.languageElement `CodeSystem.language` is mapped to FHIR R4 element `CodeSystem.language` as `Equivalent`. Language 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).
CodeSystem.text (text)is equivalent toCodeSystem.textElement `CodeSystem.text` is mapped to FHIR R4 element `CodeSystem.text` as `Equivalent`. Contained 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 in formation is added later.
CodeSystem.contained (contained)is equivalent toCodeSystem.containedElement `CodeSystem.contained` is mapped to FHIR R4 element `CodeSystem.contained` as `Equivalent`. This 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.
CodeSystem.url (url)is equivalent toCodeSystem.urlElement `CodeSystem.url` is mapped to FHIR R4 element `CodeSystem.url` as `Equivalent`. Can 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.
CodeSystem.identifier (identifier)is equivalent toCodeSystem.identifierElement `CodeSystem.identifier` is mapped to FHIR R4 element `CodeSystem.identifier` as `SourceIsNarrowerThanTarget`. Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, e.g., to identify this code system outside of FHIR, where it is not possible to use the logical URI.
CodeSystem.version (version)is equivalent toCodeSystem.versionElement `CodeSystem.version` is mapped to FHIR R4 element `CodeSystem.version` as `Equivalent`. There may be different code system instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a refrence to a particular business version of the code system with the format [url]|[version].
CodeSystem.name (name)is equivalent toCodeSystem.nameElement `CodeSystem.name` is mapped to FHIR R4 element `CodeSystem.name` as `Equivalent`. The name is not expected to be globally unique. The name should be a simple alpha-numeric type name to ensure that it is computable friendly.
CodeSystem.title (title)is equivalent toCodeSystem.titleElement `CodeSystem.title` is mapped to FHIR R4 element `CodeSystem.title` as `Equivalent`. This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.
CodeSystem.status (status)is equivalent toCodeSystem.statusElement `CodeSystem.status` is mapped to FHIR R4 element `CodeSystem.status` as `Equivalent`. Allows filtering of code systems that are appropriate for use vs. not. This is labeled as "Is Modifier" because applications should not use a retired code system without due consideration.
CodeSystem.experimental (experimental)is equivalent toCodeSystem.experimentalElement `CodeSystem.experimental` is mapped to FHIR R4 element `CodeSystem.experimental` as `Equivalent`. Allows filtering of code system that are appropriate for use vs. not. This is labeled as "Is Modifier" because applications should not use an experimental code system in production.
CodeSystem.date (date)is equivalent toCodeSystem.dateElement `CodeSystem.date` is mapped to FHIR R4 element `CodeSystem.date` as `Equivalent`. Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the code system. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.
CodeSystem.publisher (publisher)is equivalent toCodeSystem.publisherElement `CodeSystem.publisher` is mapped to FHIR R4 element `CodeSystem.publisher` as `Equivalent`. Usually an organization, but may be an individual. The publisher (or steward) of the code system is the organization or individual primarily responsible for the maintenance and upkeep of the code system. 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 code system. This item SHOULD be populated unless the information is available from context.
CodeSystem.contact (contact)is equivalent toCodeSystem.contactElement `CodeSystem.contact` is mapped to FHIR R4 element `CodeSystem.contact` as `Equivalent`. May be a web site, an email address, a telephone number, etc.
CodeSystem.description (description)is equivalent toCodeSystem.descriptionElement `CodeSystem.description` is mapped to FHIR R4 element `CodeSystem.description` as `Equivalent`. This description can be used to capture details such as why the code system 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 code system 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 profile is presumed to be the predominant language in the place the profile was created).
CodeSystem.useContext (useContext)is equivalent toCodeSystem.useContextElement `CodeSystem.useContext` is mapped to FHIR R4 element `CodeSystem.useContext` as `Equivalent`. When multiple useContexts are specified, there is no expectation whether all or any of the contexts apply.
CodeSystem.jurisdiction (jurisdiction)is equivalent toCodeSystem.jurisdictionElement `CodeSystem.jurisdiction` is mapped to FHIR R4 element `CodeSystem.jurisdiction` as `Equivalent`. It may be possible for the code system to be used in jurisdictions other than those for which it was originally designed or intended.
CodeSystem.purpose (purpose)is equivalent toCodeSystem.purposeElement `CodeSystem.purpose` is mapped to FHIR R4 element `CodeSystem.purpose` as `Equivalent`. This element does not describe the usage of the code system 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 code system.
CodeSystem.copyright (copyright)is equivalent toCodeSystem.copyrightElement `CodeSystem.copyright` is mapped to FHIR R4 element `CodeSystem.copyright` as `Equivalent`. ... Sometimes, the copyright differs between the code system and the codes that are included. The copyright statement should clearly differentiate between these when required.
CodeSystem.caseSensitive (caseSensitive)is equivalent toCodeSystem.caseSensitiveElement `CodeSystem.caseSensitive` is mapped to FHIR R4 element `CodeSystem.caseSensitive` as `Equivalent`. If this value is missing, then it is not specified whether a code system is case sensitive or not. When the rule is not known, Postel's law should be followed: produce codes with the correct case, and accept codes in any case. This element is primarily provided to support validation software.
CodeSystem.valueSet (valueSet)is equivalent toCodeSystem.valueSetElement `CodeSystem.valueSet` is mapped to FHIR R4 element `CodeSystem.valueSet` as `Equivalent`. The definition of the value set SHALL include all codes from this code system, and it SHALL be immutable.
CodeSystem.hierarchyMeaning (hierarchyMeaning)is equivalent toCodeSystem.hierarchyMeaningElement `CodeSystem.hierarchyMeaning` is mapped to FHIR R4 element `CodeSystem.hierarchyMeaning` as `Equivalent`.
CodeSystem.compositional (compositional)is equivalent toCodeSystem.compositionalElement `CodeSystem.compositional` is mapped to FHIR R4 element `CodeSystem.compositional` as `Equivalent`. Note that the code system resource does not define what the compositional grammar is, only whether or not there is one.
CodeSystem.versionNeeded (versionNeeded)is equivalent toCodeSystem.versionNeededElement `CodeSystem.versionNeeded` is mapped to FHIR R4 element `CodeSystem.versionNeeded` as `Equivalent`. Best practice is that code systems do not redefine concepts, or that if concepts are redefined, a new code system definition is created. But this is not always possible, so some code systems may be defined as 'versionNeeded'.
CodeSystem.content (content)is equivalent toCodeSystem.contentElement `CodeSystem.content` is mapped to FHIR R4 element `CodeSystem.content` as `SourceIsNarrowerThanTarget`. The mappings for `CodeSystem.content` do not allow expression of the necessary codes, per the bindings on the source and target.
CodeSystem.count (count)is equivalent toCodeSystem.countElement `CodeSystem.count` is mapped to FHIR R4 element `CodeSystem.count` as `Equivalent`. The count of concepts defined in this resource cannot be more than this value, but may be less for several reasons - see the content value.
CodeSystem.filter (filter)maps to wider conceptCodeSystem.filterElement `CodeSystem.filter` is mapped to FHIR R4 element `CodeSystem.filter` as `Equivalent`.
CodeSystem.filter.code (code)is equivalent toCodeSystem.filter.codeElement `CodeSystem.filter.code` is mapped to FHIR R4 element `CodeSystem.filter.code` as `Equivalent`.
CodeSystem.filter.description (description)is equivalent toCodeSystem.filter.descriptionElement `CodeSystem.filter.description` is mapped to FHIR R4 element `CodeSystem.filter.description` as `Equivalent`.
CodeSystem.filter.operator (operator)is equivalent toCodeSystem.filter.operatorElement `CodeSystem.filter.operator` is mapped to FHIR R4 element `CodeSystem.filter.operator` as `Equivalent`.
CodeSystem.filter.value (value)is equivalent toCodeSystem.filter.valueElement `CodeSystem.filter.value` is mapped to FHIR R4 element `CodeSystem.filter.value` as `Equivalent`.
CodeSystem.property (property)maps to wider conceptCodeSystem.propertyElement `CodeSystem.property` is mapped to FHIR R4 element `CodeSystem.property` as `Equivalent`.
CodeSystem.property.code (code)is equivalent toCodeSystem.property.codeElement `CodeSystem.property.code` is mapped to FHIR R4 element `CodeSystem.property.code` as `Equivalent`.
CodeSystem.property.uri (uri)is equivalent toCodeSystem.property.uriElement `CodeSystem.property.uri` is mapped to FHIR R4 element `CodeSystem.property.uri` as `Equivalent`.
CodeSystem.property.description (description)is equivalent toCodeSystem.property.descriptionElement `CodeSystem.property.description` is mapped to FHIR R4 element `CodeSystem.property.description` as `Equivalent`.
CodeSystem.property.type (type)is equivalent toCodeSystem.property.typeElement `CodeSystem.property.type` is mapped to FHIR R4 element `CodeSystem.property.type` as `SourceIsNarrowerThanTarget`. The mappings for `CodeSystem.property.type` do not allow expression of the necessary codes, per the bindings on the source and target.
CodeSystem.concept (concept)maps to wider conceptCodeSystem.conceptElement `CodeSystem.concept` is mapped to FHIR R4 element `CodeSystem.concept` as `Equivalent`. If this is empty, it means that the code system resource does not represent the content of the code system.
CodeSystem.concept.code (code)is equivalent toCodeSystem.concept.codeElement `CodeSystem.concept.code` is mapped to FHIR R4 element `CodeSystem.concept.code` as `Equivalent`.
CodeSystem.concept.display (display)is equivalent toCodeSystem.concept.displayElement `CodeSystem.concept.display` is mapped to FHIR R4 element `CodeSystem.concept.display` as `Equivalent`.
CodeSystem.concept.definition (definition)is equivalent toCodeSystem.concept.definitionElement `CodeSystem.concept.definition` is mapped to FHIR R4 element `CodeSystem.concept.definition` as `Equivalent`.
CodeSystem.concept.designation (designation)maps to wider conceptCodeSystem.concept.designationElement `CodeSystem.concept.designation` is mapped to FHIR R4 element `CodeSystem.concept.designation` as `Equivalent`.
CodeSystem.concept.designation.language (language)is equivalent toCodeSystem.concept.designation.languageElement `CodeSystem.concept.designation.language` is mapped to FHIR R4 element `CodeSystem.concept.designation.language` as `Equivalent`. In the absence of a language, the resource language applies.
CodeSystem.concept.designation.use (use)is equivalent toCodeSystem.concept.designation.useElement `CodeSystem.concept.designation.use` is mapped to FHIR R4 element `CodeSystem.concept.designation.use` as `Equivalent`. If no use is provided, the designation can be assumed to be suitable for general display to a human user.
CodeSystem.concept.designation.value (value)is equivalent toCodeSystem.concept.designation.valueElement `CodeSystem.concept.designation.value` is mapped to FHIR R4 element `CodeSystem.concept.designation.value` as `Equivalent`.
CodeSystem.concept.property (property)maps to wider conceptCodeSystem.concept.propertyElement `CodeSystem.concept.property` is mapped to FHIR R4 element `CodeSystem.concept.property` as `Equivalent`.
CodeSystem.concept.property.code (code)is equivalent toCodeSystem.concept.property.codeElement `CodeSystem.concept.property.code` is mapped to FHIR R4 element `CodeSystem.concept.property.code` as `Equivalent`.
CodeSystem.concept.property.value[x] (value[x])is equivalent toCodeSystem.concept.property.value[x]Element `CodeSystem.concept.property.value[x]` is mapped to FHIR R4 element `CodeSystem.concept.property.value[x]` as `Equivalent`. The target context `CodeSystem.concept.property.value[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `CodeSystem.concept.property`.
CodeSystem.concept.concept (concept)is equivalent toCodeSystem.concept.conceptElement `CodeSystem.concept.concept` is mapped to FHIR R4 element `CodeSystem.concept.concept` as `Equivalent`.

Source1

{
  "resourceType": "ConceptMap",
  "id": "R3-CodeSystem-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-r3.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-r3.r4"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/uv/xver/ConceptMap/R3-CodeSystem-element-map-to-R4",
  "version": "0.1.0",
  "name": "R3CodeSystemElementMapToR4",
  "title": "Cross-version mapping for FHIR STU3 CodeSystem to FHIR R4 CodeSystem",
  "status": "active",
  "experimental": false,
  "date": "2026-03-17T16:03:23.2805467-05:00",
  "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 STU3 CodeSystem to FHIR R4.",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "sourceCanonical": "http://hl7.org/fhir/3.0",
  "targetUri": "http://hl7.org/fhir/4.0",
  "group": [
    {
      "source": "http://hl7.org/fhir/StructureDefinition/CodeSystem",
      "sourceVersion": "3.0.2",
      "target": "http://hl7.org/fhir/StructureDefinition/CodeSystem",
      "targetVersion": "4.0.1",
      "element": [
        {
          "code": "CodeSystem.meta",
          "display": "meta",
          "target": [
            {
              "code": "CodeSystem.meta",
              "display": "CodeSystem.meta",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.meta` is mapped to FHIR R4 element `CodeSystem.meta` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.implicitRules",
          "display": "implicitRules",
          "target": [
            {
              "code": "CodeSystem.implicitRules",
              "display": "CodeSystem.implicitRules",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.implicitRules` is mapped to FHIR R4 element `CodeSystem.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. \n\nThis element is labelled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation."
            }
          ]
        },
        {
          "code": "CodeSystem.language",
          "display": "language",
          "target": [
            {
              "code": "CodeSystem.language",
              "display": "CodeSystem.language",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.language` is mapped to FHIR R4 element `CodeSystem.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": "CodeSystem.text",
          "display": "text",
          "target": [
            {
              "code": "CodeSystem.text",
              "display": "CodeSystem.text",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.text` is mapped to FHIR R4 element `CodeSystem.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 in formation is added later."
            }
          ]
        },
        {
          "code": "CodeSystem.contained",
          "display": "contained",
          "target": [
            {
              "code": "CodeSystem.contained",
              "display": "CodeSystem.contained",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.contained` is mapped to FHIR R4 element `CodeSystem.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."
            }
          ]
        },
        {
          "code": "CodeSystem.url",
          "display": "url",
          "target": [
            {
              "code": "CodeSystem.url",
              "display": "CodeSystem.url",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.url` is mapped to FHIR R4 element `CodeSystem.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."
            }
          ]
        },
        {
          "code": "CodeSystem.identifier",
          "display": "identifier",
          "target": [
            {
              "code": "CodeSystem.identifier",
              "display": "CodeSystem.identifier",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.identifier` is mapped to FHIR R4 element `CodeSystem.identifier` as `SourceIsNarrowerThanTarget`.\nTypically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, e.g., to identify this code system outside of FHIR, where it is not possible to use the logical URI."
            }
          ]
        },
        {
          "code": "CodeSystem.version",
          "display": "version",
          "target": [
            {
              "code": "CodeSystem.version",
              "display": "CodeSystem.version",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.version` is mapped to FHIR R4 element `CodeSystem.version` as `Equivalent`.\nThere may be different code system instances that have the same identifier but different versions.  The version can be appended to the url in a reference to allow a refrence to a particular business version of the code system with the format [url]|[version]."
            }
          ]
        },
        {
          "code": "CodeSystem.name",
          "display": "name",
          "target": [
            {
              "code": "CodeSystem.name",
              "display": "CodeSystem.name",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.name` is mapped to FHIR R4 element `CodeSystem.name` as `Equivalent`.\nThe name is not expected to be globally unique. The name should be a simple alpha-numeric type name to ensure that it is computable friendly."
            }
          ]
        },
        {
          "code": "CodeSystem.title",
          "display": "title",
          "target": [
            {
              "code": "CodeSystem.title",
              "display": "CodeSystem.title",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.title` is mapped to FHIR R4 element `CodeSystem.title` as `Equivalent`.\nThis name does not need to be machine-processing friendly and may contain punctuation, white-space, etc."
            }
          ]
        },
        {
          "code": "CodeSystem.status",
          "display": "status",
          "target": [
            {
              "code": "CodeSystem.status",
              "display": "CodeSystem.status",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.status` is mapped to FHIR R4 element `CodeSystem.status` as `Equivalent`.\nAllows filtering of code systems that are appropriate for use vs. not.  \nThis is labeled as \"Is Modifier\" because applications should not use a retired code system without due consideration."
            }
          ]
        },
        {
          "code": "CodeSystem.experimental",
          "display": "experimental",
          "target": [
            {
              "code": "CodeSystem.experimental",
              "display": "CodeSystem.experimental",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.experimental` is mapped to FHIR R4 element `CodeSystem.experimental` as `Equivalent`.\nAllows filtering of code system that are appropriate for use vs. not. This is labeled as \"Is Modifier\" because applications should not use an experimental code system in production."
            }
          ]
        },
        {
          "code": "CodeSystem.date",
          "display": "date",
          "target": [
            {
              "code": "CodeSystem.date",
              "display": "CodeSystem.date",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.date` is mapped to FHIR R4 element `CodeSystem.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 code system. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource."
            }
          ]
        },
        {
          "code": "CodeSystem.publisher",
          "display": "publisher",
          "target": [
            {
              "code": "CodeSystem.publisher",
              "display": "CodeSystem.publisher",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.publisher` is mapped to FHIR R4 element `CodeSystem.publisher` as `Equivalent`.\nUsually an organization, but may be an individual. The publisher (or steward) of the code system is the organization or individual primarily responsible for the maintenance and upkeep of the code system. 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 code system. This item SHOULD be populated unless the information is available from context."
            }
          ]
        },
        {
          "code": "CodeSystem.contact",
          "display": "contact",
          "target": [
            {
              "code": "CodeSystem.contact",
              "display": "CodeSystem.contact",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.contact` is mapped to FHIR R4 element `CodeSystem.contact` as `Equivalent`.\nMay be a web site, an email address, a telephone number, etc."
            }
          ]
        },
        {
          "code": "CodeSystem.description",
          "display": "description",
          "target": [
            {
              "code": "CodeSystem.description",
              "display": "CodeSystem.description",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.description` is mapped to FHIR R4 element `CodeSystem.description` as `Equivalent`.\nThis description can be used to capture details such as why the code system 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 code system 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 profile is presumed to be the predominant language in the place the profile was created)."
            }
          ]
        },
        {
          "code": "CodeSystem.useContext",
          "display": "useContext",
          "target": [
            {
              "code": "CodeSystem.useContext",
              "display": "CodeSystem.useContext",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.useContext` is mapped to FHIR R4 element `CodeSystem.useContext` as `Equivalent`.\nWhen multiple useContexts are specified, there is no expectation whether all or any of the contexts apply."
            }
          ]
        },
        {
          "code": "CodeSystem.jurisdiction",
          "display": "jurisdiction",
          "target": [
            {
              "code": "CodeSystem.jurisdiction",
              "display": "CodeSystem.jurisdiction",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.jurisdiction` is mapped to FHIR R4 element `CodeSystem.jurisdiction` as `Equivalent`.\nIt may be possible for the code system to be used in jurisdictions other than those for which it was originally designed or intended."
            }
          ]
        },
        {
          "code": "CodeSystem.purpose",
          "display": "purpose",
          "target": [
            {
              "code": "CodeSystem.purpose",
              "display": "CodeSystem.purpose",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.purpose` is mapped to FHIR R4 element `CodeSystem.purpose` as `Equivalent`.\nThis element does not describe the usage of the code system 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 code system."
            }
          ]
        },
        {
          "code": "CodeSystem.copyright",
          "display": "copyright",
          "target": [
            {
              "code": "CodeSystem.copyright",
              "display": "CodeSystem.copyright",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.copyright` is mapped to FHIR R4 element `CodeSystem.copyright` as `Equivalent`.\n... Sometimes, the copyright differs between the code system and the codes that are included. The copyright statement should clearly differentiate between these when required."
            }
          ]
        },
        {
          "code": "CodeSystem.caseSensitive",
          "display": "caseSensitive",
          "target": [
            {
              "code": "CodeSystem.caseSensitive",
              "display": "CodeSystem.caseSensitive",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.caseSensitive` is mapped to FHIR R4 element `CodeSystem.caseSensitive` as `Equivalent`.\nIf this value is missing, then it is not specified whether a code system is case sensitive or not. When the rule is not known, Postel's law should be followed: produce codes with the correct case, and accept codes in any case. This element is primarily provided to support validation software."
            }
          ]
        },
        {
          "code": "CodeSystem.valueSet",
          "display": "valueSet",
          "target": [
            {
              "code": "CodeSystem.valueSet",
              "display": "CodeSystem.valueSet",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.valueSet` is mapped to FHIR R4 element `CodeSystem.valueSet` as `Equivalent`.\nThe definition of the value set SHALL include all codes from this code system, and it SHALL be immutable."
            }
          ]
        },
        {
          "code": "CodeSystem.hierarchyMeaning",
          "display": "hierarchyMeaning",
          "target": [
            {
              "code": "CodeSystem.hierarchyMeaning",
              "display": "CodeSystem.hierarchyMeaning",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.hierarchyMeaning` is mapped to FHIR R4 element `CodeSystem.hierarchyMeaning` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.compositional",
          "display": "compositional",
          "target": [
            {
              "code": "CodeSystem.compositional",
              "display": "CodeSystem.compositional",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.compositional` is mapped to FHIR R4 element `CodeSystem.compositional` as `Equivalent`.\nNote that the code system resource does not define what the compositional grammar is, only whether or not there is one."
            }
          ]
        },
        {
          "code": "CodeSystem.versionNeeded",
          "display": "versionNeeded",
          "target": [
            {
              "code": "CodeSystem.versionNeeded",
              "display": "CodeSystem.versionNeeded",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.versionNeeded` is mapped to FHIR R4 element `CodeSystem.versionNeeded` as `Equivalent`.\nBest practice is that code systems do not redefine concepts, or that if concepts are redefined, a new code system definition is created. But this is not always possible, so some code systems may be defined as 'versionNeeded'."
            }
          ]
        },
        {
          "code": "CodeSystem.content",
          "display": "content",
          "target": [
            {
              "code": "CodeSystem.content",
              "display": "CodeSystem.content",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.content` is mapped to FHIR R4 element `CodeSystem.content` as `SourceIsNarrowerThanTarget`.\nThe mappings for `CodeSystem.content` do not allow expression of the necessary codes, per the bindings on the source and target."
            }
          ]
        },
        {
          "code": "CodeSystem.count",
          "display": "count",
          "target": [
            {
              "code": "CodeSystem.count",
              "display": "CodeSystem.count",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.count` is mapped to FHIR R4 element `CodeSystem.count` as `Equivalent`.\nThe count of concepts defined in this resource cannot be more than this value, but may be less for several reasons - see the content value."
            }
          ]
        },
        {
          "code": "CodeSystem.filter",
          "display": "filter",
          "target": [
            {
              "code": "CodeSystem.filter",
              "display": "CodeSystem.filter",
              "equivalence": "wider",
              "comment": "Element `CodeSystem.filter` is mapped to FHIR R4 element `CodeSystem.filter` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.filter.code",
          "display": "code",
          "target": [
            {
              "code": "CodeSystem.filter.code",
              "display": "CodeSystem.filter.code",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.filter.code` is mapped to FHIR R4 element `CodeSystem.filter.code` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.filter.description",
          "display": "description",
          "target": [
            {
              "code": "CodeSystem.filter.description",
              "display": "CodeSystem.filter.description",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.filter.description` is mapped to FHIR R4 element `CodeSystem.filter.description` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.filter.operator",
          "display": "operator",
          "target": [
            {
              "code": "CodeSystem.filter.operator",
              "display": "CodeSystem.filter.operator",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.filter.operator` is mapped to FHIR R4 element `CodeSystem.filter.operator` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.filter.value",
          "display": "value",
          "target": [
            {
              "code": "CodeSystem.filter.value",
              "display": "CodeSystem.filter.value",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.filter.value` is mapped to FHIR R4 element `CodeSystem.filter.value` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.property",
          "display": "property",
          "target": [
            {
              "code": "CodeSystem.property",
              "display": "CodeSystem.property",
              "equivalence": "wider",
              "comment": "Element `CodeSystem.property` is mapped to FHIR R4 element `CodeSystem.property` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.property.code",
          "display": "code",
          "target": [
            {
              "code": "CodeSystem.property.code",
              "display": "CodeSystem.property.code",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.property.code` is mapped to FHIR R4 element `CodeSystem.property.code` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.property.uri",
          "display": "uri",
          "target": [
            {
              "code": "CodeSystem.property.uri",
              "display": "CodeSystem.property.uri",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.property.uri` is mapped to FHIR R4 element `CodeSystem.property.uri` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.property.description",
          "display": "description",
          "target": [
            {
              "code": "CodeSystem.property.description",
              "display": "CodeSystem.property.description",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.property.description` is mapped to FHIR R4 element `CodeSystem.property.description` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.property.type",
          "display": "type",
          "target": [
            {
              "code": "CodeSystem.property.type",
              "display": "CodeSystem.property.type",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.property.type` is mapped to FHIR R4 element `CodeSystem.property.type` as `SourceIsNarrowerThanTarget`.\nThe mappings for `CodeSystem.property.type` do not allow expression of the necessary codes, per the bindings on the source and target."
            }
          ]
        },
        {
          "code": "CodeSystem.concept",
          "display": "concept",
          "target": [
            {
              "code": "CodeSystem.concept",
              "display": "CodeSystem.concept",
              "equivalence": "wider",
              "comment": "Element `CodeSystem.concept` is mapped to FHIR R4 element `CodeSystem.concept` as `Equivalent`.\nIf this is empty, it means that the code system resource does not represent the content of the code system."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.code",
          "display": "code",
          "target": [
            {
              "code": "CodeSystem.concept.code",
              "display": "CodeSystem.concept.code",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.concept.code` is mapped to FHIR R4 element `CodeSystem.concept.code` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.display",
          "display": "display",
          "target": [
            {
              "code": "CodeSystem.concept.display",
              "display": "CodeSystem.concept.display",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.concept.display` is mapped to FHIR R4 element `CodeSystem.concept.display` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.definition",
          "display": "definition",
          "target": [
            {
              "code": "CodeSystem.concept.definition",
              "display": "CodeSystem.concept.definition",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.concept.definition` is mapped to FHIR R4 element `CodeSystem.concept.definition` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.designation",
          "display": "designation",
          "target": [
            {
              "code": "CodeSystem.concept.designation",
              "display": "CodeSystem.concept.designation",
              "equivalence": "wider",
              "comment": "Element `CodeSystem.concept.designation` is mapped to FHIR R4 element `CodeSystem.concept.designation` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.designation.language",
          "display": "language",
          "target": [
            {
              "code": "CodeSystem.concept.designation.language",
              "display": "CodeSystem.concept.designation.language",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.concept.designation.language` is mapped to FHIR R4 element `CodeSystem.concept.designation.language` as `Equivalent`.\nIn the absence of a language, the resource language applies."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.designation.use",
          "display": "use",
          "target": [
            {
              "code": "CodeSystem.concept.designation.use",
              "display": "CodeSystem.concept.designation.use",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.concept.designation.use` is mapped to FHIR R4 element `CodeSystem.concept.designation.use` as `Equivalent`.\nIf no use is provided, the designation can be assumed to be suitable for general display to a human user."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.designation.value",
          "display": "value",
          "target": [
            {
              "code": "CodeSystem.concept.designation.value",
              "display": "CodeSystem.concept.designation.value",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.concept.designation.value` is mapped to FHIR R4 element `CodeSystem.concept.designation.value` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.property",
          "display": "property",
          "target": [
            {
              "code": "CodeSystem.concept.property",
              "display": "CodeSystem.concept.property",
              "equivalence": "wider",
              "comment": "Element `CodeSystem.concept.property` is mapped to FHIR R4 element `CodeSystem.concept.property` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.property.code",
          "display": "code",
          "target": [
            {
              "code": "CodeSystem.concept.property.code",
              "display": "CodeSystem.concept.property.code",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.concept.property.code` is mapped to FHIR R4 element `CodeSystem.concept.property.code` as `Equivalent`."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.property.value[x]",
          "display": "value[x]",
          "target": [
            {
              "code": "CodeSystem.concept.property.value[x]",
              "display": "CodeSystem.concept.property.value[x]",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.concept.property.value[x]` is mapped to FHIR R4 element `CodeSystem.concept.property.value[x]` as `Equivalent`.\nThe target context `CodeSystem.concept.property.value[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `CodeSystem.concept.property`."
            }
          ]
        },
        {
          "code": "CodeSystem.concept.concept",
          "display": "concept",
          "target": [
            {
              "code": "CodeSystem.concept.concept",
              "display": "CodeSystem.concept.concept",
              "equivalence": "equivalent",
              "comment": "Element `CodeSystem.concept.concept` is mapped to FHIR R4 element `CodeSystem.concept.concept` as `Equivalent`."
            }
          ]
        }
      ]
    }
  ]
}