Cross-Version Extension for CodeSystem.purpose in R3

Context of Use

This extension may be used in the following contexts:

• element ValueSet (For version R2)
• extension http://hl7.org/fhir/1.0/StructureDefinition/extension-ValueSet

Name	Flags	Card.	Type	Description & Constraints
Extension		0..1	Extension	Why this code system is defined
extension		..0
value[x]		1..	markdown
url				"http://hl7.org/fhir/3.0/StructureDefinition/extension-CodeSystem.purpose"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r3-csd.purpose",
  "url" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-CodeSystem.purpose",
  "name" : "XVerExtensionCodeSystem.purposeR3",
  "title" : "Cross-Version Extension for CodeSystem.purpose in R3",
  "status" : "active",
  "experimental" : false,
  "publisher" : "Health Level Seven International (Vocabulary)",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/Vocab/index.cfm"
    }]
  }],
  "description" : "Cross-Version Extension for CodeSystem.purpose. Valid in versions R2\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" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "ValueSet"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/1.0/StructureDefinition/extension-ValueSet"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Why this code system is defined",
      "definition" : "Explaination of why this code system is needed and why it has been designed as it has.",
      "comment" : "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.",
      "min" : 0,
      "max" : "1",
      "isModifier" : false,
      "mapping" : [{
        "identity" : "objimpl",
        "map" : "no-gen-base"
      },
      {
        "identity" : "w5",
        "map" : "why"
      }]
    },
    {
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "markdown"
      }]
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-CodeSystem.purpose"
    }]
  }
}