Cross-Version Extension for Identifier.type in R4

Context of Use

This extension may be used in the following contexts:

Name	Flags	Card.	Type	Description & Constraints
Extension		0..1	Extension	Description of identifier
extension		..0
value[x]		1..	CodeableConcept
url				"http://hl7.org/fhir/4.0/StructureDefinition/extension-Identifier.type"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r4-idr.type",
  "url" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-Identifier.type",
  "name" : "XVerExtensionIdentifier.typeR4",
  "title" : "Cross-Version Extension for Identifier.type in R4",
  "status" : "active",
  "experimental" : false,
  "publisher" : "HL7 FHIR Standard",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  }],
  "description" : "Cross-Version Extension for Identifier.type. Valid in versions R2, R3\r\n\r\nThis is a valid extension because it has the following codes that are not in other versions JHN (http://terminology.hl7.org/CodeSystem/v2-0203)",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001"
    }]
  }],
  "fhirVersion" : "5.0.0",
  "kind" : "complex-type",
  "abstract" : false,
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Description of identifier",
      "definition" : "A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.",
      "comment" : "This element deals only with general categories of identifiers.  It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage.   Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.",
      "requirements" : "Allows users to make use of identifiers when the identifier system is not known.",
      "min" : 0,
      "max" : "1",
      "isModifier" : false,
      "mapping" : [{
        "identity" : "v2",
        "map" : "CX.5"
      },
      {
        "identity" : "rim",
        "map" : "Role.code or implied by context"
      }]
    },
    {
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "CodeableConcept"
      }]
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-Identifier.type"
    }]
  }
}