<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="HdBe-VisualFunction" />
  <language value="en-US" />
  <extension url="http://hl7.org/fhir/StructureDefinition/resource-effectivePeriod">
    <valuePeriod>
      <start value="2020-09-01T00:00:00+02:00" />
    </valuePeriod>
  </extension>
  <url value="https://fhir.healthdata.be/StructureDefinition/LogicalModel/HdBe-VisualFunction" />
  <name value="HdBeVisualFunction">
    <extension url="http://hl7.org/fhir/StructureDefinition/translation">
      <extension url="lang">
        <valueCode value="nl-NL" />
      </extension>
      <extension url="content">
        <valueMarkdown value="HdBeFunctieZien" />
      </extension>
    </extension>
    <extension url="http://hl7.org/fhir/StructureDefinition/translation">
      <extension url="lang">
        <valueCode value="fr-BE" />
      </extension>
      <extension url="content">
        <valueMarkdown value="HdBeFonctionVisuelle" />
      </extension>
    </extension>
  </name>
  <title value="HdBe VisualFunction">
    <extension url="http://hl7.org/fhir/StructureDefinition/translation">
      <extension url="lang">
        <valueCode value="nl-NL" />
      </extension>
      <extension url="content">
        <valueMarkdown value="HdBe FunctieZien" />
      </extension>
    </extension>
    <extension url="http://hl7.org/fhir/StructureDefinition/translation">
      <extension url="lang">
        <valueCode value="fr-BE" />
      </extension>
      <extension url="content">
        <valueMarkdown value="HdBe FonctionVisuelle" />
      </extension>
    </extension>
  </title>
  <status value="draft" />
  <date value="2022-07-07T09:26:15.144771+00:00" />
  <publisher value="Healthdata.be (Sciensano)" />
  <contact>
    <name value="Service portal – healthdata.be" />
    <telecom>
      <system value="url" />
      <value value="https://sciensano.service-now.com/sp" />
      <use value="work" />
    </telecom>
  </contact>
  <description value="Sight is the ability to observe lit objects, with the goal of orienting yourself on objects and people in a lit environment. This pertains to observing the light stimuli, and not processing them in the brain. &#xD;&#xA;A sight disorder can lead to things including orientation problems.&#xD;&#xA;&#xD;&#xA;#### Purpose&#xD;&#xA;Information on visual function disorders is important in patient care and treatment and particularly in the communication with the patient. Based on this information, healthcare can be adjusted to the patient’s limitations if needed.&#xD;&#xA;#### Evidence Base&#xD;&#xA;The definitions of the concepts were (partially) taken from the ICNP definitions.">
    <extension url="http://hl7.org/fhir/StructureDefinition/translation">
      <extension url="lang">
        <valueCode value="nl-NL" />
      </extension>
      <extension url="content">
        <valueMarkdown value="Zien is het vermogen om belichte objecten waar te nemen, met als doel zich te oriërenteren op voorwerpen en personen in een belichte omgeving. Het gaat daarbij om de waarneming van de lichtprikkels en niet om de verwerking er van in de hersenen.&amp;#13;&#xA;Een stoornis van de gezichtsfunctie kan leiden tot onder andere orientatieproblemen.&amp;#13;&#xA;#### Purpose&amp;#13;&#xA;Informatie over stoornissen van de visuele functie is van belang bij de verpleging en behandeling van en vooral bij de communicatie met de patiënt. Op grond van deze informatie kan de zorg aangepast worden aan de eventuele beperkingen van de patiënt.&amp;#13;&#xA;#### Evidence Base&amp;#13;&#xA;De definities van de concepten zijn (deels) ontleend aan de Nederlandse vertaling van de ICNP begrippen.&amp;#13;&#xA;&amp;#13;&#xA;&amp;#13;&#xA;**References**&amp;#13;&#xA;1. International Classification of Functioning Disability and Health (ICF) [Online] Beschikbaar op: [http:/www.rivm.nl/who-fic/icf.htm](http:/www.rivm.nl/who-fic/icf.htm) [Geraadpleegd: 13 februari 2015]" />
      </extension>
    </extension>
    <extension url="http://hl7.org/fhir/StructureDefinition/translation">
      <extension url="lang">
        <valueCode value="fr-BE" />
      </extension>
      <extension url="content">
        <valueMarkdown value="La vue est la capacité de percevoir des objets éclairés, avec pour objectif de s'orienter sur les objets et les personnes dans un environnement éclairé. Cela a trait à la perception des stimuli lumineux, et non à leur traitement par le cerveau. &#xA;Un trouble visuel peut entraîner des problèmes, notamment d'orientation.&#xA;&#xA;#### Purpose&#xA;L'information sur les troubles de la fonction visuelle est importante dans les soins aux patients et leur traitement, et en particulier dans la communication avec le patient. Sur la base de ces informations, les soins de santé peuvent être adaptés aux limites du patient, si nécessaire.&#xA;##### Evidence Base&#xA;Les définitions des concepts ont été (partiellement) tirées des définitions de l'ICNP." />
      </extension>
    </extension>
  </description>
  <copyright value="Copyright and related rights waived via CC0, https://creativecommons.org/publicdomain/zero/1.0/. This does not apply to information from third parties, for example a medical terminology system. The implementer alone is responsible for identifying and obtaining any necessary licenses or authorizations to utilize third party IP in connection with the specification or otherwise." />
  <fhirVersion value="4.0.1" />
  <kind value="logical" />
  <abstract value="true" />
  <type value="https://fhir.healthdata.be/StructureDefinition/LogicalModel/VisualFunction" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Element" />
  <derivation value="specialization" />
  <snapshot>
    <element id="VisualFunction">
      <path value="VisualFunction" />
      <short value="VisualFunction">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="FunctieZien" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="FonctionVisuelle" />
          </extension>
        </extension>
      </short>
      <definition value="Root concept of the VisualFunction information model. This concept contains all data elements of the VisualFunction information model.">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Rootconcept van de bouwsteen FunctieZien. Dit concept bevat alle gegevenselementen van de bouwsteen FunctieZien." />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Concept root du modèle d'information FonctionVisuelle. Ce concept contient tous les éléments de données du modèle d'information FonctionVisuelle." />
          </extension>
        </extension>
      </definition>
      <min value="0" />
      <max value="*" />
      <base>
        <path value="VisualFunction" />
        <min value="0" />
        <max value="*" />
      </base>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="VisualFunction.id">
      <path value="VisualFunction.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="VisualFunction.extension">
      <path value="VisualFunction.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualFunction">
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
        <valueCode value="normative" />
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
        <valueCode value="4.0.0" />
      </extension>
      <path value="VisualFunction.VisualFunction" />
      <short value="VisualFunction">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="VisueleFunctie" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="FonctionVisuelle" />
          </extension>
        </extension>
      </short>
      <definition value="The ability to see as a result of response to stimuli of visual organs.">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Het vermogen om te zien als gevolg van reactie op prikkels van visuele organen." />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="La capacité de voir à la suite de la réponse aux stimuli des organes visuels." />
          </extension>
        </extension>
      </definition>
      <comment value="Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination." />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="VisualFunction.VisualFunction" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <strength value="required" />
        <description value="VisualFunction codes">
          <extension url="http://hl7.org/fhir/StructureDefinition/translation">
            <extension url="lang">
              <valueCode value="fr-BE" />
            </extension>
            <extension url="content">
              <valueMarkdown value="Codes FonctionVisuelle" />
            </extension>
          </extension>
        </description>
        <valueSet value="https://fhir.healthdata.be/ValueSet/VisualFunction" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid">
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
        <valueCode value="normative" />
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
        <valueCode value="4.0.0" />
      </extension>
      <path value="VisualFunction.VisualAid" />
      <short value="VisualAid">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="ZienHulpmiddel" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="AideVisuelle" />
          </extension>
        </extension>
      </short>
      <definition value="The medical aids used to support the visual function.">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="De medische hulpmiddelen die gebruikt worden ter ondersteuning van de visuele functie." />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Les aides médicales utilisées pour soutenir la fonction visuelle." />
          </extension>
        </extension>
      </definition>
      <comment value="**This CBB (VisualFunction) constrains the target CBB (MedicalDevice). The following child elements describe only the differences relative to the CBB in the target reference.**">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="**Ce CBB (FonctionVisuelle) limite le CBB cible (DispositifMédical). Les éléments enfants suivants décrivent uniquement les différences relativement au CBB dans la référence cible.**" />
          </extension>
        </extension>
      </comment>
      <min value="0" />
      <max value="*" />
      <base>
        <path value="VisualFunction.VisualAid" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.healthdata.be/StructureDefinition/LogicalModel/HdBe-MedicalDevice" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.id">
      <path value="VisualFunction.VisualAid.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.extension">
      <path value="VisualFunction.VisualAid.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.reference">
      <path value="VisualFunction.VisualAid.reference" />
      <short value="Literal reference, Relative, internal or absolute URL" />
      <definition value="A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources." />
      <comment value="Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries.   Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure &quot;/[type]/[id]&quot; then it should be assumed that the reference is to a FHIR RESTful server." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Reference.reference" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="string" />
      </type>
      <condition value="ele-1" />
      <condition value="ref-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.type">
      <path value="VisualFunction.VisualAid.type" />
      <short value="Type the reference refers to (e.g. &quot;Patient&quot;)" />
      <definition value="The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.&#xA;&#xA;The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. &quot;Patient&quot; is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources)." />
      <comment value="This element is used to indicate the type of  the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Reference.type" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="uri" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="FHIRResourceTypeExt" />
        </extension>
        <strength value="extensible" />
        <description value="Aa resource (or, for logical models, the URI of the logical model)." />
        <valueSet value="http://hl7.org/fhir/ValueSet/resource-types" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.identifier">
      <path value="VisualFunction.VisualAid.identifier" />
      <short value="Logical reference, when literal reference is not known" />
      <definition value="An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference." />
      <comment value="When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. &#xA;&#xA;When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference&#xA;&#xA;Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.&#xA;&#xA;Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference.  For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport).  One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any)." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Reference.identifier" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Identifier" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CX / EI (occasionally, more often EI maps to a resource id or a URL)" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]" />
      </mapping>
      <mapping>
        <identity value="servd" />
        <map value="Identifier" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".identifier" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.display">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true" />
      </extension>
      <path value="VisualFunction.VisualAid.display" />
      <short value="Text alternative for the resource" />
      <definition value="Plain text narrative that identifies the resource in addition to the resource reference." />
      <comment value="This is generally not the same as the Resource.text of the referenced resource.  The purpose is to identify what's being referenced, not to fully describe it." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Reference.display" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="string" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice">
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
        <valueCode value="normative" />
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
        <valueCode value="4.0.0" />
      </extension>
      <path value="VisualFunction.VisualAid.MedicalDevice" />
      <short value="Base for elements defined inside a resource" />
      <definition value="Base definition for all elements that are defined inside a resource - but not those in a data type." />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="VisualFunction.VisualAid.MedicalDevice" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="BackboneElement" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice.id">
      <path value="VisualFunction.VisualAid.MedicalDevice.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice.extension">
      <path value="VisualFunction.VisualAid.MedicalDevice.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice.modifierExtension">
      <path value="VisualFunction.VisualAid.MedicalDevice.modifierExtension" />
      <short value="Extensions that cannot be ignored even if unrecognized" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.&#xA;&#xA;Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension)." />
      <alias value="extensions" />
      <alias value="user content" />
      <alias value="modifiers" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="BackboneElement.modifierExtension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <isModifier value="true" />
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them" />
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice.Product">
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
        <valueCode value="normative" />
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
        <valueCode value="4.0.0" />
      </extension>
      <path value="VisualFunction.VisualAid.MedicalDevice.Product" />
      <short value="Base for elements defined inside a resource" />
      <definition value="Base definition for all elements that are defined inside a resource - but not those in a data type." />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="VisualFunction.VisualAid.MedicalDevice.Product" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="BackboneElement" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice.Product.id">
      <path value="VisualFunction.VisualAid.MedicalDevice.Product.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice.Product.extension">
      <path value="VisualFunction.VisualAid.MedicalDevice.Product.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice.Product.modifierExtension">
      <path value="VisualFunction.VisualAid.MedicalDevice.Product.modifierExtension" />
      <short value="Extensions that cannot be ignored even if unrecognized" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.&#xA;&#xA;Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension)." />
      <alias value="extensions" />
      <alias value="user content" />
      <alias value="modifiers" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="BackboneElement.modifierExtension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <isModifier value="true" />
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them" />
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice.Product.ProductType">
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
        <valueCode value="normative" />
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
        <valueCode value="4.0.0" />
      </extension>
      <path value="VisualFunction.VisualAid.MedicalDevice.Product.ProductType" />
      <short value="ProductType">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="ProductType" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="TypeProduit" />
          </extension>
        </extension>
      </short>
      <definition value="The type of product used to help the patient see.">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Het type product dat gebruikt wordt om het zien te ondersteunen." />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Le type de produit utilisé pour aider le patient à voir." />
          </extension>
        </extension>
      </definition>
      <comment value="Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="VisualFunction.VisualAid.MedicalDevice.Product.ProductType" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <strength value="extensible" />
        <description value="ProductType codes">
          <extension url="http://hl7.org/fhir/StructureDefinition/translation">
            <extension url="lang">
              <valueCode value="fr-BE" />
            </extension>
            <extension url="content">
              <valueMarkdown value="Codes TypeProduit" />
            </extension>
          </extension>
        </description>
        <valueSet value="https://fhir.healthdata.be/ValueSet/VisualAidType" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
    </element>
    <element id="VisualFunction.Comment">
      <path value="VisualFunction.Comment" />
      <short value="Comment">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Toelichting" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Commentaire" />
          </extension>
        </extension>
      </short>
      <definition value="A comment on the visual function.">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Een toelichting op de visuele functie." />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Un commentaire sur la fonction visuelle." />
          </extension>
        </extension>
      </definition>
      <comment value="Note that FHIR strings SHALL NOT exceed 1MB in size" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="VisualFunction.Comment" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="string" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
  </snapshot>
  <differential>
    <element id="VisualFunction">
      <path value="VisualFunction" />
      <short value="VisualFunction">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="FunctieZien" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="FonctionVisuelle" />
          </extension>
        </extension>
      </short>
      <definition value="Root concept of the VisualFunction information model. This concept contains all data elements of the VisualFunction information model.">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Rootconcept van de bouwsteen FunctieZien. Dit concept bevat alle gegevenselementen van de bouwsteen FunctieZien." />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Concept root du modèle d'information FonctionVisuelle. Ce concept contient tous les éléments de données du modèle d'information FonctionVisuelle." />
          </extension>
        </extension>
      </definition>
      <min value="0" />
      <max value="*" />
    </element>
    <element id="VisualFunction.VisualFunction">
      <path value="VisualFunction.VisualFunction" />
      <short value="VisualFunction">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="VisueleFunctie" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="FonctionVisuelle" />
          </extension>
        </extension>
      </short>
      <definition value="The ability to see as a result of response to stimuli of visual organs.">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Het vermogen om te zien als gevolg van reactie op prikkels van visuele organen." />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="La capacité de voir à la suite de la réponse aux stimuli des organes visuels." />
          </extension>
        </extension>
      </definition>
      <min value="1" />
      <max value="1" />
      <type>
        <code value="CodeableConcept" />
      </type>
      <binding>
        <strength value="required" />
        <description value="VisualFunction codes">
          <extension url="http://hl7.org/fhir/StructureDefinition/translation">
            <extension url="lang">
              <valueCode value="fr-BE" />
            </extension>
            <extension url="content">
              <valueMarkdown value="Codes FonctionVisuelle" />
            </extension>
          </extension>
        </description>
        <valueSet value="https://fhir.healthdata.be/ValueSet/VisualFunction" />
      </binding>
    </element>
    <element id="VisualFunction.VisualAid">
      <path value="VisualFunction.VisualAid" />
      <short value="VisualAid">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="ZienHulpmiddel" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="AideVisuelle" />
          </extension>
        </extension>
      </short>
      <definition value="The medical aids used to support the visual function.">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="De medische hulpmiddelen die gebruikt worden ter ondersteuning van de visuele functie." />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Les aides médicales utilisées pour soutenir la fonction visuelle." />
          </extension>
        </extension>
      </definition>
      <comment value="**This CBB (VisualFunction) constrains the target CBB (MedicalDevice). The following child elements describe only the differences relative to the CBB in the target reference.**">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="**Ce CBB (FonctionVisuelle) limite le CBB cible (DispositifMédical). Les éléments enfants suivants décrivent uniquement les différences relativement au CBB dans la référence cible.**" />
          </extension>
        </extension>
      </comment>
      <min value="0" />
      <max value="*" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.healthdata.be/StructureDefinition/LogicalModel/HdBe-MedicalDevice" />
      </type>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice">
      <path value="VisualFunction.VisualAid.MedicalDevice" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="BackboneElement" />
      </type>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice.Product">
      <path value="VisualFunction.VisualAid.MedicalDevice.Product" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="BackboneElement" />
      </type>
    </element>
    <element id="VisualFunction.VisualAid.MedicalDevice.Product.ProductType">
      <path value="VisualFunction.VisualAid.MedicalDevice.Product.ProductType" />
      <short value="ProductType">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="ProductType" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="TypeProduit" />
          </extension>
        </extension>
      </short>
      <definition value="The type of product used to help the patient see.">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Het type product dat gebruikt wordt om het zien te ondersteunen." />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Le type de produit utilisé pour aider le patient à voir." />
          </extension>
        </extension>
      </definition>
      <min value="0" />
      <max value="1" />
      <type>
        <code value="CodeableConcept" />
      </type>
      <binding>
        <strength value="extensible" />
        <description value="ProductType codes">
          <extension url="http://hl7.org/fhir/StructureDefinition/translation">
            <extension url="lang">
              <valueCode value="fr-BE" />
            </extension>
            <extension url="content">
              <valueMarkdown value="Codes TypeProduit" />
            </extension>
          </extension>
        </description>
        <valueSet value="https://fhir.healthdata.be/ValueSet/VisualAidType" />
      </binding>
    </element>
    <element id="VisualFunction.Comment">
      <path value="VisualFunction.Comment" />
      <short value="Comment">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Toelichting" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Commentaire" />
          </extension>
        </extension>
      </short>
      <definition value="A comment on the visual function.">
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="nl-NL" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Een toelichting op de visuele functie." />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/translation">
          <extension url="lang">
            <valueCode value="fr-BE" />
          </extension>
          <extension url="content">
            <valueMarkdown value="Un commentaire sur la fonction visuelle." />
          </extension>
        </extension>
      </definition>
      <min value="0" />
      <max value="1" />
      <type>
        <code value="string" />
      </type>
    </element>
  </differential>
</StructureDefinition>