type-must-support

<?xml version="1.0" encoding="UTF-8"?>

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="elementdefinition-type-must-support"/> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="1"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="trial-use"/> 
  </extension> 
  <url value="http://hl7.org/fhir/StructureDefinition/elementdefinition-type-must-support"/> 
  <version value="5.0.0-snapshot3"/> 
  <name value="type-must-support"/> 
  <status value="draft"/> 
  <experimental value="false"/> 
  <date value="2015-02-28"/> 
  <publisher value="Health Level Seven, Inc. - FHIR Core WG"/> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://hl7.org/special/committees/FHIR"/> 
    </telecom> 
  </contact> 
  <description value="If true indicates that the specified type, profile or targetProfile must be supported
   by implementations."/> 
  <fhirVersion value="5.0.0-snapshot3"/> 
  <mapping> 
    <identity value="rim"/> 
    <uri value="http://hl7.org/v3"/> 
    <name value="RIM Mapping"/> 
  </mapping> 
  <kind value="complex-type"/> 
  <abstract value="false"/> 
  <context> 
    <type value="element"/> 
    <expression value="ElementDefinition.type"/> 
  </context> 
  <context> 
    <type value="element"/> 
    <expression value="ElementDefinition.type.profile"/> 
  </context> 
  <context> 
    <type value="element"/> 
    <expression value="ElementDefinition.type.targetProfile"/> 
  </context> 
  <type value="Extension"/> 
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension"/> 
  <derivation value="constraint"/> 
  <snapshot> 
    <element id="Extension">
      <path value="Extension"/> 
      <short value="If true, the specified type/profile/target must be supported by implementations"/> 
      <definition value="If true indicates that the specified type, profile or targetProfile must be supported
       by implementations."/> 
      <comment value="An element may be labelled as must support. This extension clarifies which types/profiles/tar
      getProfiles are must-support. It has no meaning if the element itself is not must-support.
       If the element is labelled must-support, and none of the options are labelled as
       must support, then an application must support at least one of the possible options,
       but is not required to support all of them. Specific details on what it means to
       'support' the specified profile will be defined either by the implementation guide,
       by the profile and/or in usage notes for the element holding the extension.  If
       this extension is not declared on a mustSupport element, the presumption is that
       implementations need only support one of the potential types unless other documentation
       in the specification explicitly dictates otherwise."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="Extension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <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())"/> 
        <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()"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> 
      </constraint> 
      <isModifier value="false"/> 
    </element> 
    <element id="Extension.id">
      <path value="Extension.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="id"/> 
        </extension> 
        <code value="http://hl7.org/fhirpath/System.String"/> 
      </type> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="n/a"/> 
      </mapping> 
    </element> 
    <element id="Extension.extension">
      <path value="Extension.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="Extension"/> 
      <definition value="An Extension"/> 
      <min value="0"/> 
      <max value="0"/> 
      <base> 
        <path value="Element.extension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
      </type> 
      <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())"/> 
        <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()"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
    </element> 
    <element id="Extension.url">
      <path value="Extension.url"/> 
      <representation value="xmlAttr"/> 
      <short value="identifies the meaning of the extension"/> 
      <definition value="Source of the definition for the extension code - a logical name or a URL."/> 
      <comment value="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."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="Extension.url"/> 
        <min value="1"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="uri"/> 
        </extension> 
        <code value="http://hl7.org/fhirpath/System.String"/> 
      </type> 
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/elementdefinition-type-must-support"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="Extension.value[x]">
      <path value="Extension.value[x]"/> 
      <short value="Value of extension"/> 
      <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](
      extensibility.html) for a list)."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="Extension.value[x]"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="boolean"/> 
      </type> 
      <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())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
  </snapshot> 
  <differential> 
    <element id="Extension">
      <path value="Extension"/> 
      <short value="If true, the specified type/profile/target must be supported by implementations"/> 
      <definition value="If true indicates that the specified type, profile or targetProfile must be supported
       by implementations."/> 
      <comment value="An element may be labelled as must support. This extension clarifies which types/profiles/tar
      getProfiles are must-support. It has no meaning if the element itself is not must-support.
       If the element is labelled must-support, and none of the options are labelled as
       must support, then an application must support at least one of the possible options,
       but is not required to support all of them. Specific details on what it means to
       'support' the specified profile will be defined either by the implementation guide,
       by the profile and/or in usage notes for the element holding the extension.  If
       this extension is not declared on a mustSupport element, the presumption is that
       implementations need only support one of the potential types unless other documentation
       in the specification explicitly dictates otherwise."/> 
      <min value="0"/> 
      <max value="1"/> 
    </element> 
    <element id="Extension.extension">
      <path value="Extension.extension"/> 
      <max value="0"/> 
    </element> 
    <element id="Extension.url">
      <path value="Extension.url"/> 
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/elementdefinition-type-must-support"/> 
    </element> 
    <element id="Extension.value[x]">
      <path value="Extension.value[x]"/> 
      <min value="1"/> 
      <type> 
        <code value="boolean"/> 
      </type> 
    </element> 
  </differential> 
</StructureDefinition>