Cross-Version Extension for ImplementationGuide.definition.resource.fhirVersion in R4

Context of Use

This extension may be used in the following contexts:

• element ImplementationGuide.package.resource (For version R3)
• extension http://hl7.org/fhir/3.0/StructureDefinition/extension-ImplementationGuide.package.resource
• element ImplementationGuide.package.resource (For version R2)
• extension http://hl7.org/fhir/1.0/StructureDefinition/extension-ImplementationGuide.package.resource

Name	Flags	Card.	Type	Description & Constraints
Extension		0..*	Extension	Versions this applies to (if different to IG)
extension		..0
value[x]		1..	code	Binding: todo (required): All published FHIR Versions.
url				"http://hl7.org/fhir/4.0/StructureDefinition/extension-ImplementationGuide.definition.resource.fhirVersion"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r4-ig.def.res.fhirVersion",
  "url" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-ImplementationGuide.definition.resource.fhirVersion",
  "name" : "XVerExtensionImplementationGuide.definition.resource.fhirVersionR4",
  "title" : "Cross-Version Extension for ImplementationGuide.definition.resource.fhirVersion in R4",
  "status" : "active",
  "experimental" : false,
  "publisher" : "Health Level Seven International (FHIR Infrastructure)",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg/index.cfm"
    }]
  }],
  "description" : "Cross-Version Extension for ImplementationGuide.definition.resource.fhirVersion. Valid in versions R2, R3\r\n\r\nThis is a valid cross-version extension because it's counted as a new element",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001"
    }]
  }],
  "fhirVersion" : "5.0.0",
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [{
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "3.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "3.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "ImplementationGuide.package.resource"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-ImplementationGuide.package.resource"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "ImplementationGuide.package.resource"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/1.0/StructureDefinition/extension-ImplementationGuide.package.resource"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Versions this applies to (if different to IG)",
      "definition" : "Indicates the FHIR Version(s) this artifact is intended to apply to. If no versions are specified, the resource is assumed to apply to all the versions stated in ImplementationGuide.fhirVersion.",
      "comment" : "The resource SHALL be valid against all the versions it is specified to apply to. If the resource referred to is a StructureDefinition, the fhirVersion stated in the StructureDefinition cannot disagree with the version specified here; the specified versions SHALL include the version specified by the StructureDefinition, and may include additional versions using the [applicable-version](extension-structuredefinition-applicable-version.html) extension.",
      "min" : 0,
      "max" : "*",
      "isModifier" : false
    },
    {
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "code"
      }],
      "binding" : {
        "strength" : "required",
        "description" : "All published FHIR Versions.",
        "valueSet" : "http://hl7.org/fhir/ValueSet/FHIR-version|4.0.1"
      }
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-ImplementationGuide.definition.resource.fhirVersion"
    }]
  }
}