Smart Health Checks
0.4.0 - ci-build

Smart Health Checks, published by AEHRC CSIRO. This guide is not an authorized publication; it is the continuous build for version 0.4.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/aehrc/smart-forms-ig/ and changes regularly. See the Directory of published versions

## Extension: QuestionnaireItemTextHidden - TTL Profile

Draft as of 2025-12-18

TTL representation of the QuestionnaireItemTextHidden extension.

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    @prefix fhir: <http://hl7.org/fhir/> .
    @prefix owl: <http://www.w3.org/2002/07/owl#> .
    @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
    @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
    @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

    # - resource -------------------------------------------------------------------

     a fhir:StructureDefinition ;
      fhir:nodeRole fhir:treeRoot ;
      fhir:id [ fhir:v "QuestionnaireItemTextHidden"] ; #
      fhir:text [
    fhir:status [ fhir:v "extensions" ] ;
    fhir:div [ fhir:v "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: StructureDefinition QuestionnaireItemTextHidden</b></p><a name=\"QuestionnaireItemTextHidden\"> </a><a name=\"hcQuestionnaireItemTextHidden\"> </a><table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" style=\"border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\"><tr style=\"border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top\"><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"The logical name of the element\">Name</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Information about the use of the element\">Flags</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Minimum and Maximum # of times the element can appear in the instance\">Card.</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px; width: 100px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Reference to the type of the element\">Type</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Additional information about the element\">Description &amp; Constraints</a><span style=\"float: right\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64, \" alt=\"doco\" style=\"background-color: inherit\"/></a></span></th></tr><tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-QuestionnaireItemTextHidden-definitions.html#Extension\" title=\"If true, indicates that the text of an item should not be displayed to the user.\">Extension</a><a name=\"Extension\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">0</span>..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/extensibility.html#Extension\">Extension</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Don't display text to user</td></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_extension_simple.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Simple Extension\" class=\"hierarchy\"/> <a style=\"text-decoration:line-through; text-decoration:line-through\" href=\"StructureDefinition-QuestionnaireItemTextHidden-definitions.html#Extension.extension\">extension</a><a name=\"Extension.extension\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"text-decoration:line-through\"/><span style=\"text-decoration:line-through\">0</span><span style=\"text-decoration:line-through\">..</span><span style=\"text-decoration:line-through\">0</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"font-style: italic\">Extension</span></td></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-QuestionnaireItemTextHidden-definitions.html#Extension.url\">url</a><a name=\"Extension.url\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">1</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4/datatypes.html#uri\">uri</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"color: darkgreen\">\"https://smartforms.csiro.au/ig/StructureDefinition/QuestionnaireItemTextHidden\"</span></td></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-QuestionnaireItemTextHidden-definitions.html#Extension.value[x]\">value[x]</a><a name=\"Extension.value_x_\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..<span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/datatypes.html#boolean\">boolean</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">Value of extension</span></td></tr>#xD;\n<tr><td colspan=\"5\" class=\"hierarchy\"><br/><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64, \" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"^^rdf:XMLLiteral ]
      ] ; #
      fhir:url [
    fhir:v "https://smartforms.csiro.au/ig/StructureDefinition/QuestionnaireItemTextHidden"^^xsd:anyURI ;
    fhir:l <https://smartforms.csiro.au/ig/StructureDefinition/QuestionnaireItemTextHidden>
      ] ; #
      fhir:version [ fhir:v "0.4.0"] ; #
      fhir:name [ fhir:v "QuestionnaireItemTextHidden"] ; #
      fhir:title [ fhir:v "Questionnaire Item Text Hidden"] ; #
      fhir:status [ fhir:v "draft"] ; #
      fhir:date [ fhir:v "2025-12-18T05:29:19+00:00"^^xsd:dateTime] ; #
      fhir:publisher [ fhir:v "AEHRC CSIRO"] ; #
      fhir:contact ( [
    fhir:name [ fhir:v "AEHRC CSIRO" ] ;
        ( fhir:telecom [
    fhir:system [ fhir:v "url" ] ;
    fhir:value [ fhir:v "https://confluence.csiro.au/display/PCDQFPhase2/Primary+Care+Data+Quality+Foundations+-+Phase+2" ]     ] )
      ] ) ; #
      fhir:description [ fhir:v "This custom extension is used to indicate that the text of a Questionnaire item should be hidden in the user interface. This is useful for items where the text is not intended to be displayed to the user but is still needed for other processes."] ; #
      fhir:jurisdiction ( [
        ( fhir:coding [
    fhir:system [
    fhir:v "urn:iso:std:iso:3166"^^xsd:anyURI ;
    fhir:l <urn:iso:std:iso:3166>       ] ;
    fhir:code [ fhir:v "AU" ] ;
    fhir:display [ fhir:v "Australia" ]     ] )
      ] ) ; #
      fhir:copyright [ fhir:v "Copyright © 2022+ Australian Government Department of Health and Aged Care - All rights reserved.\nThis content is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.\nSee https://creativecommons.org/licenses/by-sa/4.0/.\n"] ; #
      fhir:fhirVersion [ fhir:v "4.0.1"] ; #
      fhir:mapping ( [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:uri [
    fhir:v "http://hl7.org/v3"^^xsd:anyURI ;
    fhir:l <http://hl7.org/v3>     ] ;
    fhir:name [ fhir:v "RIM Mapping" ]
      ] ) ; #
      fhir:kind [ fhir:v "complex-type"] ; #
      fhir:abstract [ fhir:v false] ; #
      fhir:context ( [
    fhir:type [ fhir:v "element" ] ;
    fhir:expression [ fhir:v "Questionnaire.item.text" ]
      ] ) ; #
      fhir:type [
    fhir:v "Extension"^^xsd:anyURI ;
    fhir:l fhir:Extension
      ] ; #
      fhir:baseDefinition [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Extension"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Extension>
      ] ; #
      fhir:derivation [ fhir:v "constraint"] ; #
      fhir:snapshot [
        ( fhir:extension [
    fhir:url [
    fhir:v "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version>       ] ;
    fhir:value [
    a fhir:String ;
    fhir:v "4.0.1"       ]     ] ) ;
        ( fhir:element [
    fhir:id [ fhir:v "Extension" ] ;
    fhir:path [ fhir:v "Extension" ] ;
    fhir:short [ fhir:v "Don't display text to user" ] ;
    fhir:definition [ fhir:v "If true, indicates that the text of an item should not be displayed to the user." ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ] ;
    fhir:base [
    fhir:path [ fhir:v "Extension" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "*" ]       ] ;
          ( fhir:condition [ fhir:v "ele-1" ] ) ;
          ( fhir:constraint [
    fhir:key [ fhir:v "ele-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ;
    fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ;
    fhir:xpath [ fhir:v "@value|f:*|h:div" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Element>         ]       ] [
    fhir:key [ fhir:v "ext-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "Must have either extensions or value[x], not both" ] ;
    fhir:expression [ fhir:v "extension.exists() != value.exists()" ] ;
    fhir:xpath [ fhir:v "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Extension"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Extension>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ]     ] [
    fhir:id [ fhir:v "Extension.id" ] ;
    fhir:path [ fhir:v "Extension.id" ] ;
          ( fhir:representation [ fhir:v "xmlAttr" ] ) ;
    fhir:short [ fhir:v "Unique id for inter-element referencing" ] ;
    fhir:definition [ fhir:v "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ] ;
    fhir:base [
    fhir:path [ fhir:v "Element.id" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ]       ] ;
          ( fhir:type [
            ( fhir:extension [
    fhir:url [
    fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type>           ] ;
    fhir:value [
    a fhir:Url ;
    fhir:v "string"^^xsd:anyURI ;
    fhir:l fhir:string           ]         ] ) ;
    fhir:code [
    fhir:v "http://hl7.org/fhirpath/System.String"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhirpath/System.String>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ] ;
          ( fhir:mapping [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:map [ fhir:v "n/a" ]       ] )     ] [
    fhir:id [ fhir:v "Extension.extension" ] ;
    fhir:path [ fhir:v "Extension.extension" ] ;
    fhir:slicing [
            ( fhir:discriminator [
    fhir:type [ fhir:v "value" ] ;
    fhir:path [ fhir:v "url" ]         ] ) ;
    fhir:description [ fhir:v "Extensions are always sliced by (at least) url" ] ;
    fhir:rules [ fhir:v "open" ]       ] ;
    fhir:short [ fhir:v "Extension" ] ;
    fhir:definition [ fhir:v "An Extension" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "0" ] ;
    fhir:base [
    fhir:path [ fhir:v "Element.extension" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "*" ]       ] ;
          ( fhir:type [
    fhir:code [
    fhir:v "Extension"^^xsd:anyURI ;
    fhir:l fhir:Extension         ]       ] ) ;
          ( fhir:constraint [
    fhir:key [ fhir:v "ele-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ;
    fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ;
    fhir:xpath [ fhir:v "@value|f:*|h:div" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Element>         ]       ] [
    fhir:key [ fhir:v "ext-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "Must have either extensions or value[x], not both" ] ;
    fhir:expression [ fhir:v "extension.exists() != value.exists()" ] ;
    fhir:xpath [ fhir:v "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Extension"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Extension>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ]     ] [
    fhir:id [ fhir:v "Extension.url" ] ;
    fhir:path [ fhir:v "Extension.url" ] ;
          ( fhir:representation [ fhir:v "xmlAttr" ] ) ;
    fhir:short [ fhir:v "identifies the meaning of the extension" ] ;
    fhir:definition [ fhir:v "Source of the definition for the extension code - a logical name or a URL." ] ;
    fhir:comment [ fhir:v "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." ] ;
    fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ] ;
    fhir:base [
    fhir:path [ fhir:v "Extension.url" ] ;
    fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ]       ] ;
          ( fhir:type [
            ( fhir:extension [
    fhir:url [
    fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type>           ] ;
    fhir:value [
    a fhir:Url ;
    fhir:v "uri"^^xsd:anyURI ;
    fhir:l fhir:uri           ]         ] ) ;
    fhir:code [
    fhir:v "http://hl7.org/fhirpath/System.String"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhirpath/System.String>         ]       ] ) ;
    fhir:fixed [
    a fhir:Uri ;
    fhir:v "https://smartforms.csiro.au/ig/StructureDefinition/QuestionnaireItemTextHidden"^^xsd:anyURI ;
    fhir:l <https://smartforms.csiro.au/ig/StructureDefinition/QuestionnaireItemTextHidden>       ] ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ] ;
          ( fhir:mapping [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:map [ fhir:v "N/A" ]       ] )     ] [
    fhir:id [ fhir:v "Extension.value[x]" ] ;
    fhir:path [ fhir:v "Extension.value[x]" ] ;
    fhir:short [ fhir:v "Value of extension" ] ;
    fhir:definition [ fhir:v "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list)." ] ;
    fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ] ;
    fhir:base [
    fhir:path [ fhir:v "Extension.value[x]" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ]       ] ;
          ( fhir:type [
    fhir:code [
    fhir:v "boolean"^^xsd:anyURI ;
    fhir:l fhir:boolean         ]       ] ) ;
          ( fhir:constraint [
    fhir:key [ fhir:v "ele-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ;
    fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ;
    fhir:xpath [ fhir:v "@value|f:*|h:div" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Element>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ] ;
          ( fhir:mapping [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:map [ fhir:v "N/A" ]       ] )     ] )
      ] ; #
      fhir:differential [
        ( fhir:element [
    fhir:id [ fhir:v "Extension" ] ;
    fhir:path [ fhir:v "Extension" ] ;
    fhir:short [ fhir:v "Don't display text to user" ] ;
    fhir:definition [ fhir:v "If true, indicates that the text of an item should not be displayed to the user." ] ;
    fhir:max [ fhir:v "1" ]     ] [
    fhir:id [ fhir:v "Extension.extension" ] ;
    fhir:path [ fhir:v "Extension.extension" ] ;
    fhir:max [ fhir:v "0" ]     ] [
    fhir:id [ fhir:v "Extension.url" ] ;
    fhir:path [ fhir:v "Extension.url" ] ;
    fhir:fixed [
    a fhir:Uri ;
    fhir:v "https://smartforms.csiro.au/ig/StructureDefinition/QuestionnaireItemTextHidden"^^xsd:anyURI ;
    fhir:l <https://smartforms.csiro.au/ig/StructureDefinition/QuestionnaireItemTextHidden>       ]     ] [
    fhir:id [ fhir:v "Extension.value[x]" ] ;
    fhir:path [ fhir:v "Extension.value[x]" ] ;
    fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ;
          ( fhir:type [
    fhir:code [
    fhir:v "boolean"^^xsd:anyURI ;
    fhir:l fhir:boolean         ]       ] )     ] )
      ] . #