Cross-Version Extension for MessageDefinition.purpose in R3

Context of Use

This extension may be used in the following contexts:

• element Basic (For version R2)

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

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r3-msd.purpose",
  "url" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-MessageDefinition.purpose",
  "name" : "XVerExtensionMessageDefinition.purposeR3",
  "title" : "Cross-Version Extension for MessageDefinition.purpose in R3",
  "status" : "active",
  "experimental" : false,
  "publisher" : "Health Level Seven International (Infrastructure And Messaging)",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/special/committees/inm/index.cfm"
    }]
  }],
  "description" : "Cross-Version Extension for MessageDefinition.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" : "Basic"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Why this message definition is defined",
      "definition" : "Explaination of why this message definition is needed and why it has been designed as it has.",
      "comment" : "This 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.",
      "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-MessageDefinition.purpose"
    }]
  }
}