National Directory of Healthcare Providers & Services (NDH) Implementation Guide
2.0.0-current - ci-build

National Directory of Healthcare Providers & Services (NDH) Implementation Guide, published by HL7 International / Patient Administration. This guide is not an authorized publication; it is the continuous build for version 2.0.0-current built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-us-ndh/ and changes regularly. See the Directory of published versions

## Extension: Accessibility - TTL Profile

Page standards status: Trial-use | Maturity Level: 4

TTL representation of the base-ext-accessibility 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 "base-ext-accessibility"] ; #
      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 base-ext-accessibility</b></p><a name=\"base-ext-accessibility\"> </a><a name=\"hcbase-ext-accessibility\"> </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-base-ext-accessibility-definitions.html#Extension\" title=\"An extension to describe accessibility options offered by a practitioner or at a location.\">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><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">*</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 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\">NDH Accessibility</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-base-ext-accessibility-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-base-ext-accessibility-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\">\"http://hl7.org/fhir/us/ndh/StructureDefinition/base-ext-accessibility\"</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_datatype.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-base-ext-accessibility-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\"><span style=\"padding-left: 3px; padding-right: 3px; color: white; background-color: red\" title=\"This element must be supported\">S</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\">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#CodeableConcept\">CodeableConcept</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><br class=\"binding\"/><span style=\"font-weight:bold\" title=\"null\" class=\"binding\">Binding: </span><a href=\"ValueSet-AccessibilityVS.html\" title=\"http://hl7.org/fhir/us/ndh/ValueSet/AccessibilityVS\" class=\"binding\">Accessibility Value Set</a><span title=\"null\" class=\"binding\"> (</span><a href=\"http://hl7.org/fhir/R4/terminologies.html#extensible\" title=\"To be conformant, the concept in this element SHALL be from the specified value set if any of the codes within the value set can apply to the concept being communicated.  If the value set does not cover the concept (based on human review), alternate codings (or, data type allowing, text) may be included instead.\" class=\"binding\">extensible</a><span title=\"null\" class=\"binding\">)</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:extension ( [
    fhir:url [
    fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/structuredefinition-wg>     ] ;
    fhir:value [
    a fhir:Code ;
    fhir:v "pa"     ]
      ] [
    fhir:url [
    fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm>     ] ;
    fhir:value [
    a fhir:Integer ;
    fhir:v 4 ;
          ( fhir:extension [
    fhir:url [
    fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom>         ] ;
    fhir:value [
    a fhir:Canonical ;
    fhir:v "http://hl7.org/fhir/us/ndh/ImplementationGuide/hl7.fhir.us.ndh"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/us/ndh/ImplementationGuide/hl7.fhir.us.ndh>         ]       ] )     ]
      ] [
    fhir:url [
    fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status>     ] ;
    fhir:value [
    a fhir:Code ;
    fhir:v "trial-use" ;
          ( fhir:extension [
    fhir:url [
    fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom>         ] ;
    fhir:value [
    a fhir:Canonical ;
    fhir:v "http://hl7.org/fhir/us/ndh/ImplementationGuide/hl7.fhir.us.ndh"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/us/ndh/ImplementationGuide/hl7.fhir.us.ndh>         ]       ] )     ]
      ] ) ; #
      fhir:url [
    fhir:v "http://hl7.org/fhir/us/ndh/StructureDefinition/base-ext-accessibility"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/us/ndh/StructureDefinition/base-ext-accessibility>
      ] ; #
      fhir:version [ fhir:v "2.0.0-current"] ; #
      fhir:name [ fhir:v "Accessibility"] ; #
      fhir:title [ fhir:v "NDH Accessibility"] ; #
      fhir:status [ fhir:v "active"] ; #
      fhir:date [ fhir:v "2026-03-23T21:58:05+00:00"^^xsd:dateTime] ; #
      fhir:publisher [ fhir:v "HL7 International / Patient Administration"] ; #
      fhir:contact ( [
    fhir:name [ fhir:v "HL7 International / Patient Administration" ] ;
        ( fhir:telecom [
    fhir:system [ fhir:v "url" ] ;
    fhir:value [ fhir:v "http://www.hl7.org/Special/committees/pafm" ]     ] [
    fhir:system [ fhir:v "email" ] ;
    fhir:value [ fhir:v "pafm@lists.hl7.org" ]     ] )
      ] ) ; #
      fhir:description [ fhir:v "An extension to describe accessibility options offered by a practitioner or at a location."] ; #
      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 "US" ] ;
    fhir:display [ fhir:v "United States of America" ]     ] )
      ] ) ; #
      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 "Location" ]
      ] [
    fhir:type [ fhir:v "element" ] ;
    fhir:expression [ fhir:v "Practitioner" ]
      ] ) ; #
      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 "NDH Accessibility" ] ;
    fhir:definition [ fhir:v "An extension to describe accessibility options offered by a practitioner or at a location." ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "*" ] ;
    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 "http://hl7.org/fhir/us/ndh/StructureDefinition/base-ext-accessibility"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/us/ndh/StructureDefinition/base-ext-accessibility>       ] ;
    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 "CodeableConcept"^^xsd:anyURI ;
    fhir:l fhir:CodeableConcept         ]       ] ) ;
          ( 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:mustSupport [ fhir:v true ] ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ] ;
    fhir:binding [
    fhir:strength [ fhir:v "extensible" ] ;
    fhir:valueSet [
    fhir:v "http://hl7.org/fhir/us/ndh/ValueSet/AccessibilityVS"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/us/ndh/ValueSet/AccessibilityVS>         ]       ] ;
          ( 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 "NDH Accessibility" ] ;
    fhir:definition [ fhir:v "An extension to describe accessibility options offered by a practitioner or at a location." ]     ] [
    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 "http://hl7.org/fhir/us/ndh/StructureDefinition/base-ext-accessibility"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/us/ndh/StructureDefinition/base-ext-accessibility>       ]     ] [
    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 "CodeableConcept"^^xsd:anyURI ;
    fhir:l fhir:CodeableConcept         ]       ] ) ;
    fhir:mustSupport [ fhir:v true ] ;
    fhir:binding [
    fhir:strength [ fhir:v "extensible" ] ;
    fhir:valueSet [
    fhir:v "http://hl7.org/fhir/us/ndh/ValueSet/AccessibilityVS"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/us/ndh/ValueSet/AccessibilityVS>         ]       ]     ] )
      ] . #