Cross-Version Extension for NamingSystem.purpose in R5

Context of Use

This extension may be used in the following contexts:

• element NamingSystem (For version R4B)
• extension http://hl7.org/fhir/4.3/StructureDefinition/extension-NamingSystem
• element NamingSystem (For version R4)
• extension http://hl7.org/fhir/4.0/StructureDefinition/extension-NamingSystem
• element NamingSystem (For version R3)
• extension http://hl7.org/fhir/3.0/StructureDefinition/extension-NamingSystem
• element NamingSystem (For version R2)
• extension http://hl7.org/fhir/1.0/StructureDefinition/extension-NamingSystem

Name	Flags	Card.	Type	Description & Constraints
Extension		0..1	Extension	Why this naming system is defined
extension		..0
value[x]		1..	markdown
url				"http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.purpose"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r5-nsd.purpose",
  "url" : "http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.purpose",
  "name" : "XVerExtensionNamingSystem.purposeR5",
  "title" : "Cross-Version Extension for NamingSystem.purpose in R5",
  "status" : "active",
  "experimental" : false,
  "publisher" : "Health Level Seven International (Terminology Infrastructure)",
  "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 NamingSystem.purpose. Valid in versions R2, R3, R4, R4B\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" : "4.3"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "4.3"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "NamingSystem"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/4.3/StructureDefinition/extension-NamingSystem"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "4.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "4.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "NamingSystem"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-NamingSystem"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "3.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "3.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "NamingSystem"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-NamingSystem"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "NamingSystem"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/1.0/StructureDefinition/extension-NamingSystem"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Why this naming system is defined",
      "definition" : "Explanation of why this naming 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" : "w5",
        "map" : "FiveWs.why[x]"
      },
      {
        "identity" : "objimpl",
        "map" : "no-gen-base"
      }]
    },
    {
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "markdown"
      }]
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.purpose"
    }]
  }
}