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Extension: Questionnaire Item Control

Context of Use: Use on Element ID Questionnaire.item or Element ID ElementDefinition

Definition

The type of data entry control or structure that should be used to render the item. Certain item controls only make sense for certain types of items. For example, a radio button doesn't make sense for a question where repeats=true; few systems will know how to implement a 'slider' control if the question type is 'Attachment', etc. Form fillers are allowed to ignore item controls that don't make sense (or that they don't know how to handle) for the type of item the extension appears on. If the extension is ignored, the form filler will use whatever display control it supports that works best for the type of item present. Similarly, form authoring tools may raise validation issues or prohibit the selection of certain control types based on the characteristics of the item.

Comment:

Different controls may be appropriate for different item types. It is up to the system rendering a questionnaire as to what controls it will support and for which data types. See additional guidance and examples in the SDC implementation guide.

Extension Content

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Summary

Name	Flags	Card.	Type	Description & Constraints
QItemControl		0..1	CodeableConcept	URL = http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl QItemControl: The type of data entry control or structure that should be used to render the item. Certain item controls only make sense for certain types of items. For example, a radio button doesn't make sense for a question where repeats=true; few systems will know how to implement a 'slider' control if the question type is 'Attachment', etc. Form fillers are allowed to ignore item controls that don't make sense (or that they don't know how to handle) for the type of item the extension appears on. If the extension is ignored, the form filler will use whatever display control it supports that works best for the type of item present. Similarly, form authoring tools may raise validation issues or prohibit the selection of certain control types based on the characteristics of the item. Binding: Questionnaire Item UI Control Codes (extensible): User interface controls or widgets used for questionnaire items. Use on Element ID Questionnaire.item or Element ID ElementDefinition
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl QItemControl: The type of data entry control or structure that should be used to render the item. Certain item controls only make sense for certain types of items. For example, a radio button doesn't make sense for a question where repeats=true; few systems will know how to implement a 'slider' control if the question type is 'Attachment', etc. Form fillers are allowed to ignore item controls that don't make sense (or that they don't know how to handle) for the type of item the extension appears on. If the extension is ignored, the form filler will use whatever display control it supports that works best for the type of item present. Similarly, form authoring tools may raise validation issues or prohibit the selection of certain control types based on the characteristics of the item. Use on Element ID Questionnaire.item or Element ID ElementDefinition
extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl"
value[x]		1..1	CodeableConcept	Value of extension Binding: Questionnaire Item UI Control Codes (extensible): User interface controls or widgets used for questionnaire items.
Documentation for this format

XML Template

<!-- QItemControl -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl" >
  <!-- from Element: extension -->
 <valueCodeableConcept><!-- I 1..1 CodeableConcept Value of extension --></valueCodeableConcept>
</extension>

JSON Template

{ // QItemControl
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl", // R! 
    "valueCodeableConcept" : { CodeableConcept } // I R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
QItemControl		0..1	CodeableConcept	URL = http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl QItemControl: The type of data entry control or structure that should be used to render the item. Certain item controls only make sense for certain types of items. For example, a radio button doesn't make sense for a question where repeats=true; few systems will know how to implement a 'slider' control if the question type is 'Attachment', etc. Form fillers are allowed to ignore item controls that don't make sense (or that they don't know how to handle) for the type of item the extension appears on. If the extension is ignored, the form filler will use whatever display control it supports that works best for the type of item present. Similarly, form authoring tools may raise validation issues or prohibit the selection of certain control types based on the characteristics of the item. Binding: Questionnaire Item UI Control Codes (extensible): User interface controls or widgets used for questionnaire items. Use on Element ID Questionnaire.item or Element ID ElementDefinition
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl QItemControl: The type of data entry control or structure that should be used to render the item. Certain item controls only make sense for certain types of items. For example, a radio button doesn't make sense for a question where repeats=true; few systems will know how to implement a 'slider' control if the question type is 'Attachment', etc. Form fillers are allowed to ignore item controls that don't make sense (or that they don't know how to handle) for the type of item the extension appears on. If the extension is ignored, the form filler will use whatever display control it supports that works best for the type of item present. Similarly, form authoring tools may raise validation issues or prohibit the selection of certain control types based on the characteristics of the item. Use on Element ID Questionnaire.item or Element ID ElementDefinition
extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl"
value[x]		1..1	CodeableConcept	Value of extension Binding: Questionnaire Item UI Control Codes (extensible): User interface controls or widgets used for questionnaire items.
Documentation for this format

XML Template

<!-- QItemControl -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl" >
  <!-- from Element: extension -->
 <valueCodeableConcept><!-- I 1..1 CodeableConcept Value of extension --></valueCodeableConcept>
</extension>

JSON Template

{ // QItemControl
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl", // R! 
    "valueCodeableConcept" : { CodeableConcept } // I R! Value of extension
  }

Constraints

• ele-1: All FHIR elements must have a @value or children (xpath: hasValue() or (children().count() > id.count()))
• ext-1: Must have either extensions or value[x], not both (xpath: extension.exists() != value.exists())
• ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: hasValue() or (children().count() > id.count()))
• ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: extension.exists() != value.exists())
• ele-1: On Extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: hasValue() or (children().count() > id.count()))

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Examples of this extension

No examples found.