Order Catalog Implementation Guide
current - CI Build

Order Catalog Implementation Guide, published by HL7 International - Orders and Observations Work Group. This is not an authorized publication; it is the continuous build for version current). This version is based on the current content of https://github.com/HL7/fhir-order-catalog/ and changes regularly. See the Directory of published versions

Resource Profile: CatalogHeader - XML Profile

XML representation of the CatalogHeader resource profile.

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<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="CatalogHeader"/>
  <text>
    <status value="additional"/>
    <div xmlns="http://www.w3.org/1999/xhtml">This profile constrains the Composition resource to
      represent the header of a catalog of healthcare products/services/knowledge artefacts. The
      resource provides the global metadata of the catalog, such as the custodian, category,
      validity period and title. An instance of Composition profiled by CatalogHeader does not
      mention the catalog items. Instead, it is referenced by the definitional resources
      representing the items belonging to this catalog.</div>
  </text>
  <url
       value="http://hl7.org/fhir/uv/order-catalog/StructureDefinition/CatalogHeader"/>
  <version value="current"/>
  <name value="CatalogHeader"/>
  <title value="Catalog Header"/>
  <status value="draft"/>
  <date value="2022-05-06T15:37:23+00:00"/>
  <publisher value="HL7 International - Orders and Observations Work Group"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/Special/committees/orders"/>
    </telecom>
  </contact>
  <description
               value="This profile of Compositions retains the elements and extensions needed to characterize a catalog of healthare products / services / knowledge artefacts, with a set of general properties (name, category, owner, ...)"/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
    </coding>
  </jurisdiction>
  <purpose
           value="An instance of Composition conforming to this profile represents the general properties of a specific catalog of healthcare items (services/products/knowledge artefacts).
Such a resource is referenced by the resources representing the individual items of the catalog."/>
  <fhirVersion value="5.0.0-snapshot1"/>
  <mapping>
    <identity value="workflow"/>
    <uri value="http://hl7.org/fhir/workflow"/>
    <name value="Workflow Pattern"/>
  </mapping>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM Mapping"/>
  </mapping>
  <mapping>
    <identity value="cda"/>
    <uri value="http://hl7.org/v3/cda"/>
    <name value="CDA (R2)"/>
  </mapping>
  <mapping>
    <identity value="fhirdocumentreference"/>
    <uri value="http://hl7.org/fhir/documentreference"/>
    <name value="FHIR DocumentReference"/>
  </mapping>
  <mapping>
    <identity value="w5"/>
    <uri value="http://hl7.org/fhir/fivews"/>
    <name value="FiveWs Pattern Mapping"/>
  </mapping>
  <kind value="resource"/>
  <abstract value="false"/>
  <type value="Composition"/>
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Composition"/>
  <derivation value="constraint"/>
  <snapshot>
    <element id="Composition">
      <path value="Composition"/>
      <short
             value="A set of resources composed into a single coherent clinical statement with clinical attestation"/>
      <definition
                  value="A set of healthcare-related information that is assembled together into a single logical package that provides a single coherent statement of meaning, establishes its own context and that has clinical attestation with regard to who is making the statement. A Composition defines the structure and narrative content necessary for a document. However, a Composition alone does not constitute a document. Rather, the Composition must be the first entry in a Bundle where Bundle.type=document, and any other resources referenced from Composition must be included as subsequent entries in the Bundle (for example Patient, Practitioner, Encounter, etc.)."/>
      <comment
               value="While the focus of this specification is on patient-specific clinical statements, this resource can also apply to other healthcare-related statements such as study protocol designs, healthcare invoices and other activities that are not necessarily patient-specific or clinical."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Composition"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <constraint>
        <key value="dom-2"/>
        <severity value="error"/>
        <human
               value="If the resource is contained in another resource, it SHALL NOT contain nested Resources"/>
        <expression value="contained.contained.empty()"/>
        <xpath value="not(parent::f:contained and f:contained)"/>
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
      </constraint>
      <constraint>
        <key value="dom-3"/>
        <severity value="error"/>
        <human
               value="If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource"/>
        <expression
                    value="contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()"/>
        <xpath
               value="not(exists(for $id in f:contained/*/f:id/@value return $contained[not(parent::*/descendant::f:reference/@value=concat('#', $contained/*/id/@value) or descendant::f:reference[@value='#'])]))"/>
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
      </constraint>
      <constraint>
        <key value="dom-4"/>
        <severity value="error"/>
        <human
               value="If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated"/>
        <expression
                    value="contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()"/>
        <xpath
               value="not(exists(f:contained/*/f:meta/f:versionId)) and not(exists(f:contained/*/f:meta/f:lastUpdated))"/>
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
      </constraint>
      <constraint>
        <key value="dom-5"/>
        <severity value="error"/>
        <human
               value="If a resource is contained in another resource, it SHALL NOT have a security label"/>
        <expression value="contained.meta.security.empty()"/>
        <xpath value="not(exists(f:contained/*/f:meta/f:security))"/>
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
      </constraint>
      <constraint>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice">
          <valueBoolean value="true"/>
        </extension>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation">
          <valueMarkdown
                         value="When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time."/>
        </extension>
        <key value="dom-6"/>
        <severity value="warning"/>
        <human value="A resource should have narrative for robust management"/>
        <expression value="text.`div`.exists()"/>
        <xpath value="exists(f:text/h:div)"/>
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="Entity. Role, or Act"/>
      </mapping>
      <mapping>
        <identity value="workflow"/>
        <map value="Event"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map
             value="Document[classCode=&quot;DOC&quot; and moodCode=&quot;EVN&quot; and isNormalAct()]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value="ClinicalDocument"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="when described by DocumentReference"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="infrastructure.documents"/>
      </mapping>
    </element>
    <element id="Composition.id">
      <path value="Composition.id"/>
      <short value="Logical id of this artifact"/>
      <definition
                  value="The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes."/>
      <comment
               value="Typically, the resource has an id except for cases like the create operation, conditional updates."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.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>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Composition.meta">
      <path value="Composition.meta"/>
      <short value="Metadata about the resource"/>
      <definition
                  value="The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.meta"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Meta"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Composition.implicitRules">
      <path value="Composition.implicitRules"/>
      <short value="A set of rules under which this content was created"/>
      <definition
                  value="A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc."/>
      <comment
               value="Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.implicitRules"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="uri"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="true"/>
      <isModifierReason
                        value="This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation"/>
      <isSummary value="true"/>
    </element>
    <element id="Composition.language">
      <path value="Composition.language"/>
      <short value="Language of the resource content"/>
      <definition value="The base language in which the resource is written."/>
      <comment
               value="Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies  to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.language"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet">
          <valueCanonical value="http://hl7.org/fhir/ValueSet/all-languages"/>
        </extension>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Language"/>
        </extension>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="preferred"/>
        <description value="IETF language tag"/>
        <valueSet value="http://hl7.org/fhir/ValueSet/languages"/>
      </binding>
    </element>
    <element id="Composition.text">
      <path value="Composition.text"/>
      <short value="Text summary of the resource, for human interpretation"/>
      <definition
                  value="A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it &quot;clinically safe&quot; for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety."/>
      <comment
               value="Contained resources do not have a narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied).  This may be necessary for data from legacy systems where information is captured as a &quot;text blob&quot; or where text is additionally entered raw or narrated and encoded information is added later."/>
      <alias value="narrative"/>
      <alias value="html"/>
      <alias value="xhtml"/>
      <alias value="display"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="DomainResource.text"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Narrative"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="Act.text?"/>
      </mapping>
    </element>
    <element id="Composition.contained">
      <path value="Composition.contained"/>
      <short value="Contained, inline Resources"/>
      <definition
                  value="These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope."/>
      <comment
               value="This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels."/>
      <alias value="inline resources"/>
      <alias value="anonymous resources"/>
      <alias value="contained resources"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.contained"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Resource"/>
      </type>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Composition.extension">
      <path value="Composition.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <rules value="open"/>
      </slicing>
      <short value="Extension"/>
      <definition value="An Extension"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.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())"/>
        <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(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Composition.extension:ValidityPeriod">
      <path value="Composition.extension"/>
      <sliceName value="ValidityPeriod"/>
      <short value="Validity Period"/>
      <definition
                  value="The period in which the catalog is valid, with optional start and end dates."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="DomainResource.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/uv/order-catalog/StructureDefinition/ValidityPeriod"/>
      </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())"/>
        <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>
      <mustSupport value="true"/>
      <isModifier value="false"/>
    </element>
    <element id="Composition.modifierExtension">
      <path value="Composition.modifierExtension"/>
      <short value="Extensions that cannot be ignored"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it 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 is allowed to 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.

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](http://build.fhir.org/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.modifierExtension"/>
        <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())"/>
        <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(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Composition.identifier">
      <path value="Composition.identifier"/>
      <short value="Version-independent identifier for the Composition"/>
      <definition
                  value="A version-independent identifier for the Composition. This identifier stays constant as the composition is changed over time."/>
      <comment
               value="Similar to ClinicalDocument/setId in CDA. See discussion in resource definition for how these relate."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.identifier"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Identifier"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Event.identifier"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.identifier"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="Document.id / Document.setId"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".setId"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.masterIdentifier"/>
      </mapping>
    </element>
    <element id="Composition.status">
      <path value="Composition.status"/>
      <short
             value="preliminary | final | amended | entered-in-error | deprecated"/>
      <definition
                  value="The workflow/clinical status of this composition. The status is a marker for the clinical standing of the document."/>
      <comment
               value="If a composition is marked as withdrawn, the compositions/documents in the series, or data from the composition or document series, should never be displayed to a user without being clearly marked as untrustworthy. The flag &quot;entered-in-error&quot; is why this element is labeled as a modifier of other elements.   

Some reporting work flows require that the original narrative of a final document never be altered; instead, only new narrative can be added. The composition resource has no explicit status for explicitly noting whether this business rule is in effect. This would be handled by an extension if required."/>
      <requirements
                    value="Need to be able to mark interim, amended, or withdrawn compositions or documents."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Composition.status"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="true"/>
      <isModifierReason
                        value="This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="CompositionStatus"/>
        </extension>
        <strength value="required"/>
        <description value="The workflow/clinical status of the composition."/>
        <valueSet
                  value="http://hl7.org/fhir/ValueSet/composition-status|5.0.0-snapshot1"/>
      </binding>
      <mapping>
        <identity value="workflow"/>
        <map value="Event.status"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.status"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map
             value="interim: .completionCode=&quot;IN&quot; &amp; ./statusCode[isNormalDatatype()]=&quot;active&quot;;  final: .completionCode=&quot;AU&quot; &amp;&amp;  ./statusCode[isNormalDatatype()]=&quot;complete&quot; and not(./inboundRelationship[typeCode=&quot;SUBJ&quot; and isNormalActRelationship()]/source[subsumesCode(&quot;ActClass#CACT&quot;) and moodCode=&quot;EVN&quot; and domainMember(&quot;ReviseComposition&quot;, code) and isNormalAct()]);  amended: .completionCode=&quot;AU&quot; &amp;&amp;  ./statusCode[isNormalDatatype()]=&quot;complete&quot; and ./inboundRelationship[typeCode=&quot;SUBJ&quot; and isNormalActRelationship()]/source[subsumesCode(&quot;ActClass#CACT&quot;) and moodCode=&quot;EVN&quot; and domainMember(&quot;ReviseComposition&quot;, code) and isNormalAct() and statusCode=&quot;completed&quot;];  withdrawn : .completionCode=NI &amp;&amp;  ./statusCode[isNormalDatatype()]=&quot;obsolete&quot;"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value="n/a"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.status"/>
      </mapping>
    </element>
    <element id="Composition.type">
      <path value="Composition.type"/>
      <short value="Kind of composition: a catalog"/>
      <definition
                  value="Specifies the particular kind of composition (e.g. History and Physical, Discharge Summary, Progress Note). This usually equates to the purpose of making the composition."/>
      <comment
               value="For Composition type, LOINC is ubiquitous and strongly endorsed by HL7. Most implementation guides will require a specific LOINC code, or use LOINC as an extensible binding."/>
      <requirements
                    value="Key metadata element describing the composition, used in searching/filtering."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Composition.type"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="DocumentType"/>
        </extension>
        <strength value="preferred"/>
        <description value="Type of a composition."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/doc-typecodes"/>
      </binding>
      <mapping>
        <identity value="workflow"/>
        <map value="Event.code"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.class"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="./code"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".code"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.type"/>
      </mapping>
    </element>
    <element id="Composition.type.id">
      <path value="Composition.type.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>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Composition.type.extension">
      <path value="Composition.type.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>
      <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(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Composition.type.coding">
      <path value="Composition.type.coding"/>
      <short value="Code defined by a terminology system"/>
      <definition value="A reference to a code defined by a terminology system."/>
      <comment
               value="Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information.  Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true."/>
      <requirements
                    value="Allows for alternative encodings within a code system, and translations to other code systems."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="CodeableConcept.coding"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Coding"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="C*E.1-8, C*E.10-22"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="union(., ./translation)"/>
      </mapping>
      <mapping>
        <identity value="orim"/>
        <map value="fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding"/>
      </mapping>
    </element>
    <element id="Composition.type.text">
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/>
      </extension>
      <path value="Composition.type.text"/>
      <short value="Plain text representation of the concept"/>
      <definition
                  value="A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user."/>
      <comment
               value="Very often the text is the same as a displayName of one of the codings."/>
      <requirements
                    value="The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="CodeableConcept.text"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <fixedString value="Catalog"/>
      <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>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="C*E.9. But note many systems use C*E.2 for this"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="./originalText[mediaType/code=&quot;text/plain&quot;]/data"/>
      </mapping>
      <mapping>
        <identity value="orim"/>
        <map
             value="fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText"/>
      </mapping>
    </element>
    <element id="Composition.category">
      <path value="Composition.category"/>
      <short value="Kind of catalog"/>
      <definition
                  value="A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type."/>
      <comment
               value="This is a metadata field from [XDS/MHD](http://wiki.ihe.net/index.php?title=Mobile_access_to_Health_Documents_(MHD))."/>
      <requirements
                    value="Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents."/>
      <min value="1"/>
      <max value="*"/>
      <base>
        <path value="Composition.category"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <strength value="example"/>
        <description value="Category of catalog content"/>
        <valueSet value="http://hl7.org/fhir/ValueSet/catalogType"/>
      </binding>
      <mapping>
        <identity value="workflow"/>
        <map value="Event.subject"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.class"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map
             value=".outboundRelationship[typeCode=&quot;COMP].target[classCode=&quot;LIST&quot;, moodCode=&quot;EVN&quot;].code"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value="n/a"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumenttReference.category"/>
      </mapping>
    </element>
    <element id="Composition.subject">
      <path value="Composition.subject"/>
      <short value="Plan or set of dispositions subject of the catalog"/>
      <definition
                  value="The catalog may be set up to be used in the context of a particular plan or set of financial, organizational or legal dispositions"/>
      <comment
               value="For example the catalog may provide the details of reimbursement of its items within the context of an insurance plan handled by a payer"/>
      <requirements
                    value="Essential metadata for searching for the composition. Identifies who and/or what the composition/document is about."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.subject"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Resource"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.subject[x]"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map
             value=".participation[typeCode=&quot;SBJ&quot;].role[typeCode=&quot;PAT&quot;]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".recordTarget"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.subject"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.subject"/>
      </mapping>
    </element>
    <element id="Composition.encounter">
      <path value="Composition.encounter"/>
      <short value="Context of the Composition"/>
      <definition
                  value="Describes the clinical encounter or type of care this documentation is associated with."/>
      <requirements
                    value="Provides context for the composition and supports searching."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="Composition.encounter"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Encounter"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Event.context"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.context"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map
             value="unique(highest(./outboundRelationship[typeCode=&quot;SUBJ&quot; and isNormalActRelationship()], priorityNumber)/target[moodCode=&quot;EVN&quot; and classCode=(&quot;ENC&quot;, &quot;PCPR&quot;) and isNormalAct])"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".componentOf.encompassingEncounter"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.context.encounter"/>
      </mapping>
    </element>
    <element id="Composition.date">
      <path value="Composition.date"/>
      <short value="Catalog content last editing time"/>
      <definition
                  value="The composition editing time, when the composition was last logically changed by the author."/>
      <comment
               value="The Last Modified Date on the composition may be after the date of the document was attested without being changed."/>
      <requirements
                    value="dateTime is used for tracking, organizing versions and searching. Note that this is the time of *authoring*. When packaged in a document, [Bundle.timestamp](http://build.fhir.org/bundle-definitions.html#Bundle.timestamp) is the date of packaging."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Composition.date"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="dateTime"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Event.occurrence[x]"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.done[x]"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value=".effectiveTime[type=&quot;TS&quot;]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".effectiveTime"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map
             value="DocumentReference.content.attachment.date, DocumentReference.created"/>
      </mapping>
    </element>
    <element id="Composition.author">
      <path value="Composition.author"/>
      <short value="The organization authoring the catalog content"/>
      <definition
                  value="An organization authoring and owning the content of the catalog"/>
      <comment
               value="In general there is a single author for a catalog. However there may be use cases where multiple authors contribute to various parts of a catalog, each author owning one part and being responsible for its content."/>
      <requirements value="Identifies who is responsible for the content."/>
      <alias value="catalog owner"/>
      <min value="1"/>
      <max value="*"/>
      <base>
        <path value="Composition.author"/>
        <min value="1"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Organization"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Event.performer"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.author"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map
             value=".participation[typeCode=&quot;AUT&quot;].role[classCode=&quot;ASSIGNED&quot;]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".author.assignedAuthor"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.agent"/>
      </mapping>
    </element>
    <element id="Composition.title">
      <path value="Composition.title"/>
      <short value="Human Readable name/title"/>
      <definition value="Official human-readable label for the composition."/>
      <comment
               value="For many compositions, the title is the same as the text or a display name of Composition.type (e.g. a &quot;consultation&quot; or &quot;progress note&quot;). Note that CDA does not make title mandatory, but there are no known cases where it is useful for title to be omitted, so it is mandatory here. Feedback on this requirement is welcome during the trial use period."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Composition.title"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="./title"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".title"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map
             value="DocumentReference.description, DocumentReference.content.attachment.title"/>
      </mapping>
    </element>
    <element id="Composition.title.id">
      <path value="Composition.title.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition
                  value="unique id for the element within a resource (for internal references)"/>
      <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>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Composition.title.extension">
      <path value="Composition.title.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <rules value="open"/>
      </slicing>
      <short value="Extension"/>
      <definition value="An Extension"/>
      <min value="0"/>
      <max value="*"/>
      <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())"/>
        <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="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Composition.title.extension:OtherTitle">
      <path value="Composition.title.extension"/>
      <sliceName value="OtherTitle"/>
      <short value="Language Translation (Localization)"/>
      <definition
                  value="Language translation from base language of resource to another language."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/translation"/>
      </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())"/>
        <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="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="ST.translation"/>
      </mapping>
    </element>
    <element id="Composition.title.value">
      <path value="Composition.title.value"/>
      <representation value="xmlAttr"/>
      <short value="Primitive value for string"/>
      <definition value="The actual value"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="string.value"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/regex">
          <valueString value="[ \r\n\t\S]+"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <maxLength value="1048576"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Composition.confidentiality">
      <path value="Composition.confidentiality"/>
      <short value="As defined by affinity domain"/>
      <definition
                  value="The code specifying the level of confidentiality of the Composition."/>
      <comment
               value="The exact use of this element, and enforcement and issues related to highly sensitive documents are out of scope for the base specification, and delegated to implementation profiles (see security section).  This element is labeled as a modifier because highly confidential documents must not be treated as if they are not."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.confidentiality"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="DocumentConfidentiality"/>
        </extension>
        <strength value="required"/>
        <description
                     value="Codes specifying the level of confidentiality of the composition."/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-Confidentiality|2.0.0"/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value=".confidentialityCode"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".confidentialityCode"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.securityLabel"/>
      </mapping>
    </element>
    <element id="Composition.attester">
      <path value="Composition.attester"/>
      <short value="Attests to accuracy of composition"/>
      <definition
                  value="A participant who has attested to the accuracy of the composition/document."/>
      <comment value="Only list each attester once."/>
      <requirements
                    value="Identifies responsibility for the accuracy of the composition content."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.attester"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map
             value=".participation[typeCode=&quot;AUTHEN&quot;].role[classCode=&quot;ASSIGNED&quot;]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".authenticator/.legalAuthenticator"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.authenticator"/>
      </mapping>
    </element>
    <element id="Composition.attester.id">
      <path value="Composition.attester.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="Composition.attester.extension">
      <path value="Composition.attester.extension"/>
      <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>
      <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(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Composition.attester.modifierExtension">
      <path value="Composition.attester.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.

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](http://build.fhir.org/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>
      <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(.), &quot;value&quot;)])"/>
        <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>
    </element>
    <element id="Composition.attester.mode">
      <path value="Composition.attester.mode"/>
      <short value="personal | professional | legal | official"/>
      <definition value="The type of attestation the authenticator offers."/>
      <requirements value="Indicates the level of authority of the attestation."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Composition.attester.mode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="CompositionAttestationMode"/>
        </extension>
        <strength value="preferred"/>
        <description
                     value="The way in which a person authenticated a composition."/>
        <valueSet
                  value="http://hl7.org/fhir/ValueSet/composition-attestation-mode"/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="unique(./modeCode)"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value="implied by .authenticator/.legalAuthenticator"/>
      </mapping>
    </element>
    <element id="Composition.attester.time">
      <path value="Composition.attester.time"/>
      <short value="When the composition was attested"/>
      <definition value="When the composition was attested by the party."/>
      <requirements
                    value="Identifies when the information in the composition was deemed accurate.  (Things may have changed since then.)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Composition.attester.time"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="dateTime"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="./time[type=&quot;TS&quot; and isNormalDatatype()]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".authenticator.time"/>
      </mapping>
    </element>
    <element id="Composition.attester.party">
      <path value="Composition.attester.party"/>
      <short value="Who attested the composition"/>
      <definition value="Who attested the composition in the specified way."/>
      <requirements
                    value="Identifies who has taken on the responsibility for accuracy of the composition content."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.attester.party"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/RelatedPerson"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Practitioner"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/PractitionerRole"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Organization"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.witness"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map
             value="./role[classCode=&quot;ASSIGNED&quot; and isNormalRole]/player[determinerCode=&quot;INST&quot; and classCode=(&quot;DEV&quot;, &quot;PSN&quot;) and isNormalEntity()] or ./role[classCode=&quot;ASSIGNED&quot; and isNormalRole and not(player)]/scoper[determinerCode=&quot;INST&quot; and classCode=&quot;ORG&quot; and isNormalEntity()]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".authenticator.assignedEnttty"/>
      </mapping>
    </element>
    <element id="Composition.custodian">
      <path value="Composition.custodian"/>
      <short value="Organization which maintains the composition"/>
      <definition
                  value="Identifies the organization or group who is responsible for ongoing maintenance of and access to the composition/document information."/>
      <comment
               value="This is useful when documents are derived from a composition - provides guidance for how to get the latest version of the document. This is optional because this is sometimes not known by the authoring system, and can be inferred by context. However, it is important that this information be known when working with a derived document, so providing a custodian is encouraged."/>
      <requirements
                    value="Identifies where to go to find the current version, where to report issues, etc."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Composition.custodian"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Organization"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map
             value=".participation[typeCode=&quot;RCV&quot;].role[classCode=&quot;CUST&quot;].scoper[classCode=&quot;ORG&quot; and determinerCode=&quot;INST&quot;]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".custodian.assignedCustodian"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.custodian"/>
      </mapping>
    </element>
    <element id="Composition.relatesTo">
      <path value="Composition.relatesTo"/>
      <short value="Relationships to other compositions/documents"/>
      <definition
                  value="Relationships that this composition has with other compositions or documents that already exist."/>
      <comment value="A document is a version specific composition."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Composition.relatesTo"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="RelatedArtifact"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value=".outboundRelationship"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".relatedDocument"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.relatesTo"/>
      </mapping>
    </element>
    <element id="Composition.event">
      <path value="Composition.event"/>
      <short value="The clinical service(s) being documented"/>
      <definition
                  value="The clinical service, such as a colonoscopy or an appendectomy, being documented."/>
      <comment
               value="The event needs to be consistent with the type element, though can provide further information if desired."/>
      <requirements
                    value="Provides context for the composition and creates a linkage between a resource describing an event and the composition created describing the event."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="Composition.event"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map
             value="outboundRelationship[typeCode=&quot;SUBJ&quot;].target[classCode&lt;'ACT']"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".documentationOf.serviceEvent"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.event"/>
      </mapping>
    </element>
    <element id="Composition.event.id">
      <path value="Composition.event.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="Composition.event.extension">
      <path value="Composition.event.extension"/>
      <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>
      <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(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Composition.event.modifierExtension">
      <path value="Composition.event.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.

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](http://build.fhir.org/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>
      <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(.), &quot;value&quot;)])"/>
        <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>
    </element>
    <element id="Composition.event.code">
      <path value="Composition.event.code"/>
      <short value="Code(s) that apply to the event being documented"/>
      <definition
                  value="This list of codes represents the main clinical acts, such as a colonoscopy or an appendectomy, being documented. In some cases, the event is inherent in the typeCode, such as a &quot;History and Physical Report&quot; in which the procedure being documented is necessarily a &quot;History and Physical&quot; act."/>
      <comment
               value="An event can further specialize the act inherent in the typeCode, such as where it is simply &quot;Procedure Report&quot; and the procedure was a &quot;colonoscopy&quot;. If one or more eventCodes are included, they SHALL NOT conflict with the values inherent in the classCode, practiceSettingCode or typeCode, as such a conflict would create an ambiguous situation. This short list of codes is provided to be used as key words for certain types of queries."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Composition.event.code"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="DocumentEventType"/>
        </extension>
        <strength value="example"/>
        <description
                     value="This list of codes represents the main clinical acts being documented."/>
        <valueSet value="http://terminology.hl7.org/ValueSet/v3-ActCode"/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value=".code"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".code"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.event.code"/>
      </mapping>
    </element>
    <element id="Composition.event.period">
      <path value="Composition.event.period"/>
      <short value="The period covered by the documentation"/>
      <definition
                  value="The period of time covered by the documentation. There is no assertion that the documentation is a complete representation for this period, only that it documents events during this time."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.event.period"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Period"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value=".effectiveTime"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".effectiveTime"/>
      </mapping>
      <mapping>
        <identity value="fhirdocumentreference"/>
        <map value="DocumentReference.event.period"/>
      </mapping>
    </element>
    <element id="Composition.event.detail">
      <path value="Composition.event.detail"/>
      <short value="The event(s) being documented"/>
      <definition
                  value="The description and/or reference of the event(s) being documented. For example, this could be used to document such a colonoscopy or an appendectomy."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Composition.event.detail"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Resource"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value=".outboundRelationship[typeCode=&quot;SUBJ&quot;].target"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Composition.section">
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name">
        <valueString value="Section"/>
      </extension>
      <path value="Composition.section"/>
      <short value="Composition is broken into sections"/>
      <definition value="The root of the sections that make up the composition."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="Composition.section"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="cmp-1"/>
        <severity value="error"/>
        <human
               value="A section must contain at least one of text, entries, or sub-sections"/>
        <expression value="text.exists() or entry.exists() or section.exists()"/>
        <xpath value="exists(f:text) or exists(f:entry) or exists(f:section)"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Composition"/>
      </constraint>
      <constraint>
        <key value="cmp-2"/>
        <severity value="error"/>
        <human value="A section can only have an emptyReason if it is empty"/>
        <expression value="emptyReason.empty() or entry.empty()"/>
        <xpath value="not(exists(f:emptyReason) and exists(f:entry))"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Composition"/>
      </constraint>
      <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>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map
             value="./outboundRelationship[typeCode=&quot;COMP&quot; and isNormalActRelationship()]/target[moodCode=&quot;EVN&quot; and classCode=&quot;DOCSECT&quot; and isNormalAct]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".component.structuredBody.component.section"/>
      </mapping>
    </element>
    <element id="Composition.section.id">
      <path value="Composition.section.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="Composition.section.extension">
      <path value="Composition.section.extension"/>
      <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>
      <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(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Composition.section.modifierExtension">
      <path value="Composition.section.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.

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](http://build.fhir.org/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>
      <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(.), &quot;value&quot;)])"/>
        <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>
    </element>
    <element id="Composition.section.title">
      <path value="Composition.section.title"/>
      <short value="Label for section (e.g. for ToC)"/>
      <definition
                  value="The label for this particular section.  This will be part of the rendered content for the document, and is often used to build a table of contents."/>
      <comment
               value="The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title,  or documents that only have a single section. Most Implementation Guides will make section title to be a required element."/>
      <requirements
                    value="Section headings are often standardized for different types of documents.  They give guidance to humans on how the document is organized."/>
      <alias value="header"/>
      <alias value="label"/>
      <alias value="caption"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.section.title"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="./title"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".title"/>
      </mapping>
    </element>
    <element id="Composition.section.code">
      <path value="Composition.section.code"/>
      <short value="Classification of section (recommended)"/>
      <definition
                  value="A code identifying the kind of content contained within the section. This must be consistent with the section title."/>
      <comment
               value="The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.   

If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code."/>
      <requirements
                    value="Provides computable standardized labels to topics within the document."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.section.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="CompositionSectionType"/>
        </extension>
        <strength value="example"/>
        <description
                     value="Classification of a section of a composition/document."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/doc-section-codes"/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="./code"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".code"/>
      </mapping>
    </element>
    <element id="Composition.section.author">
      <path value="Composition.section.author"/>
      <short value="Who and/or what authored the section"/>
      <definition
                  value="Identifies who is responsible for the information in this section, not necessarily who typed it in."/>
      <requirements value="Identifies who is responsible for the content."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Composition.section.author"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Practitioner"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/PractitionerRole"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Device"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/RelatedPerson"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Organization"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.author"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map
             value=".participation[typeCode=&quot;AUT&quot;].role[classCode=&quot;ASSIGNED&quot;]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".author.assignedAuthor"/>
      </mapping>
    </element>
    <element id="Composition.section.focus">
      <path value="Composition.section.focus"/>
      <short
             value="Who/what the section is about, when it is not about the subject of composition"/>
      <definition
                  value="The actual focus of the section when it is not the subject of the composition, but instead represents something or someone associated with the subject such as (for a patient subject) a spouse, parent, fetus, or donor. If not focus is specified, the focus is assumed to be focus of the parent section, or, for a section in the Composition itself, the subject of the composition. Sections with a focus SHALL only include resources where the logical subject (patient, subject, focus, etc.) matches the section focus, or the resources have no logical subject (few resources)."/>
      <comment
               value="Typically, sections in a doument are about the subject of the document, whether that is a  patient, or group of patients, location, or device, or whatever. For some kind of documents, some sections actually contain data about related entities. Typical examples are  a section in a newborn discharge summary concerning the mother, or family history documents, with a section about each family member, though there are many other examples."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.section.focus"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Resource"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="cda"/>
        <map
             value=".subject? (CDA did not differentiate between subject and focus)"/>
      </mapping>
    </element>
    <element id="Composition.section.text">
      <path value="Composition.section.text"/>
      <short value="Text summary of the section, for human interpretation"/>
      <definition
                  value="A human-readable narrative that contains the attested content of the section, used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it &quot;clinically safe&quot; for a human to just read the narrative."/>
      <comment
               value="Document profiles may define what content should be represented in the narrative to ensure clinical safety."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.section.text"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Narrative"/>
      </type>
      <condition value="cmp-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>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value=".text"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".text"/>
      </mapping>
    </element>
    <element id="Composition.section.mode">
      <path value="Composition.section.mode"/>
      <short value="working | snapshot | changes"/>
      <definition
                  value="How the entry list was prepared - whether it is a working list that is suitable for being maintained on an ongoing basis, or if it represents a snapshot of a list of items from another source, or whether it is a prepared list where items may be marked as added, modified or deleted."/>
      <comment
               value="This element is labeled as a modifier because a change list must not be misunderstood as a complete list."/>
      <requirements
                    value="Sections are used in various ways, and it must be known in what way it is safe to use the entries in them."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.section.mode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SectionMode"/>
        </extension>
        <strength value="required"/>
        <description value="The processing mode that applies to this section."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/list-mode|5.0.0-snapshot1"/>
      </binding>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.class"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map
             value=".outBoundRelationship[typeCode=COMP].target[classCode=OBS&quot;].value"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Composition.section.orderedBy">
      <path value="Composition.section.orderedBy"/>
      <short value="Order of section entries"/>
      <definition
                  value="Specifies the order applied to the items in the section entries."/>
      <comment
               value="Applications SHOULD render ordered lists in the order provided, but MAY allow users to re-order based on their own preferences as well. If there is no order specified, the order is unknown, though there may still be some order."/>
      <requirements
                    value="Important for presentation and rendering.  Lists may be sorted to place more important information first or to group related entries."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.section.orderedBy"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </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())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SectionEntryOrder"/>
        </extension>
        <strength value="preferred"/>
        <description value="What order applies to the items in the entry."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/list-order"/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value=".outboundRelationship[typeCode=COMP].sequenceNumber &gt; 1"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Composition.section.entry">
      <path value="Composition.section.entry"/>
      <short value="A reference to data that supports this section"/>
      <definition
                  value="A reference to the actual resource from which the narrative in the section is derived."/>
      <comment
               value="If there are no entries in the list, an emptyReason SHOULD be provided."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Composition.section.entry"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Resource"/>
      </type>
      <condition value="cmp-2"/>
      <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>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map
             value=".outboundRelationship[typeCode=COMP] or  .participation[typeCode=SBJ]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".entry"/>
      </mapping>
    </element>
    <element id="Composition.section.emptyReason">
      <path value="Composition.section.emptyReason"/>
      <short value="Why the section is empty"/>
      <definition
                  value="If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason."/>
      <comment
               value="The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content has been suppressed, and not for when individual items are omitted - implementers may consider using a text note or a flag on an entry in these cases."/>
      <requirements
                    value="Allows capturing things like &quot;none exist&quot; or &quot;not asked&quot; which can be important for most lists."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Composition.section.emptyReason"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <condition value="cmp-2"/>
      <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>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SectionEmptyReason"/>
        </extension>
        <strength value="preferred"/>
        <description value="If a section is empty, why it is empty."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/list-empty-reason"/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map
             value=".inboundRelationship[typeCode=SUBJ,code&lt;ListEmptyReason].value[type=CD]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Composition.section.section">
      <path value="Composition.section.section"/>
      <short value="Nested Section"/>
      <definition value="A nested sub-section within this section."/>
      <comment
               value="Nested sections are primarily used to help human readers navigate to particular portions of the document."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Composition.section.section"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <contentReference
                        value="http://hl7.org/fhir/StructureDefinition/Composition#Composition.section"/>
      <condition value="cmp-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>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map
             value="./outboundRelationship[typeCode=&quot;COMP&quot; and isNormalActRelationship()]/target[moodCode=&quot;EVN&quot; and classCode=&quot;DOCSECT&quot; and isNormalAct]"/>
      </mapping>
      <mapping>
        <identity value="cda"/>
        <map value=".component.section"/>
      </mapping>
    </element>
  </snapshot>
  <differential>
    <element id="Composition">
      <path value="Composition"/>
    </element>
    <element id="Composition.extension">
      <path value="Composition.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <rules value="open"/>
      </slicing>
    </element>
    <element id="Composition.extension:ValidityPeriod">
      <path value="Composition.extension"/>
      <sliceName value="ValidityPeriod"/>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/uv/order-catalog/StructureDefinition/ValidityPeriod"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element id="Composition.type">
      <path value="Composition.type"/>
      <short value="Kind of composition: a catalog"/>
    </element>
    <element id="Composition.type.text">
      <path value="Composition.type.text"/>
      <min value="1"/>
      <fixedString value="Catalog"/>
    </element>
    <element id="Composition.category">
      <path value="Composition.category"/>
      <short value="Kind of catalog"/>
      <min value="1"/>
      <binding>
        <strength value="example"/>
        <description value="Category of catalog content"/>
        <valueSet value="http://hl7.org/fhir/ValueSet/catalogType"/>
      </binding>
    </element>
    <element id="Composition.subject">
      <path value="Composition.subject"/>
      <short value="Plan or set of dispositions subject of the catalog"/>
      <definition
                  value="The catalog may be set up to be used in the context of a particular plan or set of financial, organizational or legal dispositions"/>
      <comment
               value="For example the catalog may provide the details of reimbursement of its items within the context of an insurance plan handled by a payer"/>
    </element>
    <element id="Composition.encounter">
      <path value="Composition.encounter"/>
      <max value="0"/>
    </element>
    <element id="Composition.date">
      <path value="Composition.date"/>
      <short value="Catalog content last editing time"/>
    </element>
    <element id="Composition.author">
      <path value="Composition.author"/>
      <short value="The organization authoring the catalog content"/>
      <definition
                  value="An organization authoring and owning the content of the catalog"/>
      <comment
               value="In general there is a single author for a catalog. However there may be use cases where multiple authors contribute to various parts of a catalog, each author owning one part and being responsible for its content."/>
      <alias value="catalog owner"/>
      <type>
        <code value="Reference"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Organization"/>
      </type>
    </element>
    <element id="Composition.title.extension">
      <path value="Composition.title.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <rules value="open"/>
      </slicing>
    </element>
    <element id="Composition.title.extension:OtherTitle">
      <path value="Composition.title.extension"/>
      <sliceName value="OtherTitle"/>
      <type>
        <code value="Extension"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/translation"/>
      </type>
    </element>
    <element id="Composition.attester">
      <path value="Composition.attester"/>
      <max value="1"/>
    </element>
    <element id="Composition.attester.time">
      <path value="Composition.attester.time"/>
      <min value="1"/>
    </element>
    <element id="Composition.custodian">
      <path value="Composition.custodian"/>
      <min value="1"/>
    </element>
    <element id="Composition.event">
      <path value="Composition.event"/>
      <max value="0"/>
    </element>
    <element id="Composition.section">
      <path value="Composition.section"/>
      <max value="0"/>
    </element>
  </differential>
</StructureDefinition>