Release 5 Preview #1

This page is part of the FHIR Specification (v4.2.0: R5 Preview #1). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R4B R4 R3 R2

Extension: hidden

FHIR Infrastructure Work Group

Maturity Level: 1

Informative

Use Context: Any

URL for this extension:

http://hl7.org/fhir/StructureDefinition/questionnaire-hidden

Status: draft. Extension maintained by: HL7

If true, indicates that the extended item should not be displayed to the user.

Comment:

If an item is hidden, all descendant items are hidden as well.

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

Summary

Name	Flags	Card.	Type	Description & Constraints
hidden		0..1	boolean	URL = http://hl7.org/fhir/StructureDefinition/questionnaire-hidden hidden: If true, indicates that the extended item should not be displayed to the user. Use on Element ID Questionnaire.item or Element ID Questionnaire.item.item
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/questionnaire-hidden hidden: If true, indicates that the extended item should not be displayed to the user. Use on Element ID Questionnaire.item or Element ID Questionnaire.item.item
extension	I	0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/questionnaire-hidden"
value[x]	I	1..1	boolean	Value of extension
Documentation for this format

XML Template

<!-- hidden -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/questionnaire-hidden" >
  <!-- from Element: extension -->
 <valueBoolean value="[boolean]"/><!--  1..1 Value of extension -->
</extension>

JSON Template

{ // hidden
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/questionnaire-hidden", // R! 
    "valueBoolean" : <boolean> // C? R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
hidden		0..1	boolean	URL = http://hl7.org/fhir/StructureDefinition/questionnaire-hidden hidden: If true, indicates that the extended item should not be displayed to the user. Use on Element ID Questionnaire.item or Element ID Questionnaire.item.item
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/questionnaire-hidden hidden: If true, indicates that the extended item should not be displayed to the user. Use on Element ID Questionnaire.item or Element ID Questionnaire.item.item
extension	I	0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/questionnaire-hidden"
value[x]	I	1..1	boolean	Value of extension
Documentation for this format

XML Template

<!-- hidden -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/questionnaire-hidden" >
  <!-- from Element: extension -->
 <valueBoolean value="[boolean]"/><!--  1..1 Value of extension -->
</extension>

JSON Template

{ // hidden
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/questionnaire-hidden", // R! 
    "valueBoolean" : <boolean> // C? R! Value of extension
  }

Constraints

ele-1: All FHIR elements must have a @value or children (xpath: @value|f:*|h:div)
ext-1: Must have either extensions or value[x], not both (xpath: exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')]))
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: @value|f:*|h:div)