Cross-Version Extension for MessageHeader.event[x] in R4

Context of Use

This extension may be used in the following contexts:

• element MessageHeader (For version R5)
• extension http://hl7.org/fhir/5.0/StructureDefinition/extension-MessageHeader
• element MessageHeader (For version R3)
• extension http://hl7.org/fhir/3.0/StructureDefinition/extension-MessageHeader
• element MessageHeader (For version R2)
• extension http://hl7.org/fhir/1.0/StructureDefinition/extension-MessageHeader

Name	Flags	Card.	Type	Description & Constraints
Extension		1..1	Extension	Code for the event this message represents or link to event definition
extension		..0
value[x]		1..	uri
url				"http://hl7.org/fhir/4.0/StructureDefinition/extension-MessageHeader.event[x]"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r4-msh.event[x]",
  "url" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-MessageHeader.event[x]",
  "name" : "XVerExtensionMessageHeader.event[x]R4",
  "title" : "Cross-Version Extension for MessageHeader.event[x] in R4",
  "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 MessageHeader.event[x]. Valid in versions R2, R3, R5\r\n\r\nThis is a valid extension because it has the types uri",
  "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" : "5.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "5.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "MessageHeader"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/5.0/StructureDefinition/extension-MessageHeader"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "3.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "3.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "MessageHeader"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-MessageHeader"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "MessageHeader"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/1.0/StructureDefinition/extension-MessageHeader"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Code for the event this message represents or link to event definition",
      "definition" : "Code that identifies the event this message represents and connects it with its definition. Events defined as part of the FHIR specification have the system value \"http://terminology.hl7.org/CodeSystem/message-events\".  Alternatively uri to the EventDefinition.",
      "comment" : "The time of the event will be found in the focus resource. The time of the message will be found in [Bundle.timestamp](bundle-definitions.html#Bundle.timestamp).",
      "requirements" : "Drives the behavior associated with this message.",
      "min" : 1,
      "max" : "1",
      "isModifier" : false,
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.what[x]"
      },
      {
        "identity" : "v2",
        "map" : "MSH-9.2"
      },
      {
        "identity" : "rim",
        "map" : "./payload[classCode=\"CACT\" and moodCode=\"EVN\" and isNormalAct()]/code[isNormalDatatype()]/code"
      }]
    },
    {
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "uri"
      }]
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-MessageHeader.event[x]"
    }]
  }
}