Cross-Version Extension for Questionnaire.item.initial in R4

Context of Use

This extension may be used in the following contexts:

• element Questionnaire.item (For version R3)
• extension http://hl7.org/fhir/3.0/StructureDefinition/extension-Questionnaire.item
• element Questionnaire.group (For version R2)
• extension http://hl7.org/fhir/1.0/StructureDefinition/extension-Questionnaire.group
• element Questionnaire.group.question (For version R2)
• extension http://hl7.org/fhir/1.0/StructureDefinition/extension-Questionnaire.group.question

Name	Flags	Card.	Type	Description & Constraints
Extension		0..*	Extension	Initial value(s) when item is first rendered
extension:value[x]R4			?gen-e1? [CanonicalType[http://hl7.org/fhir/4.0/StructureDefinition/extension-Questionnaire.item.initial.value[x]]]	URL: http://hl7.org/fhir/4.0/StructureDefinition/extension-Questionnaire.item.initial.value[x]
extension		1..
value[x]		..0
url				"http://hl7.org/fhir/4.0/StructureDefinition/extension-Questionnaire.item.initial"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r4-que.ite.initial",
  "url" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-Questionnaire.item.initial",
  "name" : "XVerExtensionQuestionnaire.item.initialR4",
  "title" : "Cross-Version Extension for Questionnaire.item.initial in R4",
  "status" : "active",
  "experimental" : false,
  "publisher" : "Health Level Seven International (FHIR Infrastructure)",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg/index.cfm"
    }]
  }],
  "description" : "Cross-Version Extension for Questionnaire.item.initial. Valid in versions R2, R3\r\n\r\nThis is a valid cross-version extension because the cardinality changed",
  "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" : "3.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "3.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "Questionnaire.item"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-Questionnaire.item"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "Questionnaire.group"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/1.0/StructureDefinition/extension-Questionnaire.group"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "Questionnaire.group.question"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/1.0/StructureDefinition/extension-Questionnaire.group.question"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Initial value(s) when item is first rendered",
      "definition" : "One or more values that should be pre-populated in the answer when initially rendering the questionnaire for user input.",
      "comment" : "The user is allowed to change the value and override the default (unless marked as read-only). If the user doesn't change the value, then this initial value will be persisted when the QuestionnaireResponse is initially created.  Note that initial values can influence results.  The data type of initial[x] must agree with the item.type, and only repeating items can have more then one initial value.",
      "requirements" : "In some workflows, having defaults saves time.",
      "min" : 0,
      "max" : "*",
      "isModifier" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "N/A - MIF rather than RIM level"
      }]
    },
    {
      "path" : "Extension.extension",
      "sliceName" : "value[x]R4",
      "type" : [{
        "code" : "Extension",
        "profile" : ["http://hl7.org/fhir/4.0/StructureDefinition/extension-Questionnaire.item.initial.value[x]"]
      }]
    },
    {
      "path" : "Extension.extension",
      "min" : 1
    },
    {
      "path" : "Extension.value[x]",
      "max" : "0"
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-Questionnaire.item.initial"
    }]
  }
}