Consolidated CDA Release 2.2
2.2 - CI Build Unknown state code 'US'

Consolidated CDA Release 2.2 - Local Development build (v2.2). See the Directory of published versions

Resource Profile: SeverityObservation - XML Profile

Active as of 2023-05-30

XML representation of the 2.16.840.1.113883.10.20.22.4.8 resource profile.

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<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="2.16.840.1.113883.10.20.22.4.8"/>
  <meta>
    <versionId value="4"/>
    <lastUpdated value="2022-05-13T19:09:30.621+00:00"/>
    <source value="#kniLtlGhdA7knl9h"/>
  </meta>
  <text>
    <status value="extensions"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><table border="0" cellpadding="0" cellspacing="0" style="border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;"><tr style="border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top"><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the the element can appear in the instance">Card.</a></th><th style="width: 100px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description &amp; Constraints</a><span style="float: right"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/></a></span></th></tr><tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck0.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_resource.png" alt="." style="background-color: white; background-color: inherit" title="Resource" class="hierarchy"/> <a href="StructureDefinition-2.16.840.1.113883.10.20.22.4.8-definitions.html#Observation">Observation</a><a name="Observation"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/ahdis/cda-core-2.0//StructureDefinition-Observation.html">CDAR2.Observation</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Base for all types and resources</span></td></tr>
<tr><td colspan="5" class="hierarchy"><br/><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
  </text>
  <url
       value="http://hl7.org/fhir/cda/ccda/StructureDefinition/2.16.840.1.113883.10.20.22.4.8"/>
  <identifier>
    <value value="urn:hl7ii:2.16.840.1.113883.10.20.22.4.8:2014-06-09"/>
  </identifier>
  <version value="2.2"/>
  <name value="SeverityObservation"/>
  <title value="Severity Observation"/>
  <status value="active"/>
  <date value="2023-05-30T19:31:57+00:00"/>
  <publisher value="Health Level Seven"/>
  <contact>
    <name value="HL7 International - Structured Documents"/>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/structure"/>
    </telecom>
  </contact>
  <jurisdiction>
    <coding>
      <system value="urn:iso:std:iso:3166:-2"/>
      <code value="US"/>
    </coding>
  </jurisdiction>
  <fhirVersion value="4.0.1"/>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM Mapping"/>
  </mapping>
  <kind value="resource"/>
  <abstract value="false"/>
  <type value="Observation"/>
  <baseDefinition
                  value="http://hl7.org/fhir/cda/StructureDefinition/Observation"/>
  <derivation value="constraint"/>
  <snapshot>
    <element id="Observation">
      <path value="Observation"/>
      <short value="Base for all types and resources"/>
      <definition
                  value="Base definition for all types defined in FHIR type system."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Base"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <isModifier value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Observation.classCode">
      <path value="Observation.classCode"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.classCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ActClassObservation"/>
      </binding>
    </element>
    <element id="Observation.moodCode">
      <path value="Observation.moodCode"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.moodCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element id="Observation.negationInd">
      <path value="Observation.negationInd"/>
      <representation value="xmlAttr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.negationInd"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
      </type>
    </element>
    <element id="Observation.realmCode">
      <path value="Observation.realmCode"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.realmCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CS"/>
      </type>
    </element>
    <element id="Observation.typeId">
      <path value="Observation.typeId"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.typeId"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/II"/>
      </type>
    </element>
    <element id="Observation.templateId">
      <path value="Observation.templateId"/>
      <definition
                  value="When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.templateId"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/II"/>
      </type>
    </element>
    <element id="Observation.id">
      <path value="Observation.id"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.id"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/II"/>
      </type>
    </element>
    <element id="Observation.code">
      <path value="Observation.code"/>
      <representation value="typeAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.code"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CD"/>
      </type>
      <binding>
        <strength value="extensible"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ObservationType"/>
      </binding>
    </element>
    <element id="Observation.derivationExpr">
      <path value="Observation.derivationExpr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.derivationExpr"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/ST"/>
      </type>
    </element>
    <element id="Observation.text">
      <path value="Observation.text"/>
      <representation value="typeAttr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.text"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/ED"/>
      </type>
    </element>
    <element id="Observation.statusCode">
      <path value="Observation.statusCode"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.statusCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CS"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/v3-ActStatus"/>
      </binding>
    </element>
    <element id="Observation.effectiveTime">
      <path value="Observation.effectiveTime"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.effectiveTime"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/IVL-TS"/>
      </type>
    </element>
    <element id="Observation.priorityCode">
      <path value="Observation.priorityCode"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.priorityCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CE"/>
      </type>
      <binding>
        <strength value="extensible"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/v3-ActPriority"/>
      </binding>
    </element>
    <element id="Observation.repeatNumber">
      <path value="Observation.repeatNumber"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.repeatNumber"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/IVL-INT"/>
      </type>
    </element>
    <element id="Observation.languageCode">
      <path value="Observation.languageCode"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.languageCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CS"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-HumanLanguage"/>
      </binding>
    </element>
    <element id="Observation.value">
      <path value="Observation.value"/>
      <representation value="typeAttr"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.value"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/BL"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/ED"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/ST"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CD"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CV"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CE"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/SC"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/II"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/TEL"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/AD"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/EN"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/INT"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/REAL"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/PQ"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/MO"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/TS"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/IVL-PQ"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/IVL-TS"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/PIVL-TS"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/EIVL-TS"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/SXPR-TS"/>
      </type>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/RTO-PQ-PQ"/>
      </type>
    </element>
    <element id="Observation.interpretationCode">
      <path value="Observation.interpretationCode"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.interpretationCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CE"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ObservationInterpretation"/>
      </binding>
    </element>
    <element id="Observation.methodCode">
      <path value="Observation.methodCode"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.methodCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CE"/>
      </type>
      <binding>
        <strength value="extensible"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ObservationMethod"/>
      </binding>
    </element>
    <element id="Observation.targetSiteCode">
      <path value="Observation.targetSiteCode"/>
      <definition value="Drawn from concept domain ActSite"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.targetSiteCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CD"/>
      </type>
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.subject"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Element"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="Observation.subject.id">
      <path value="Observation.subject.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="Observation.subject.extension">
      <path value="Observation.subject.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())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Observation.subject.typeCode">
      <path value="Observation.subject.typeCode"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.subject.typeCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <defaultValueCode value="SBJ"/>
      <fixedCode value="SBJ"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ParticipationTargetSubject"/>
      </binding>
    </element>
    <element id="Observation.subject.contextControlCode">
      <path value="Observation.subject.contextControlCode"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.subject.contextControlCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <defaultValueCode value="OP"/>
      <fixedCode value="OP"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ContextControl"/>
      </binding>
    </element>
    <element id="Observation.subject.awarenessCode">
      <path value="Observation.subject.awarenessCode"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.subject.awarenessCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/CE"/>
      </type>
      <binding>
        <strength value="extensible"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-TargetAwareness"/>
      </binding>
    </element>
    <element id="Observation.subject.relatedSubject">
      <path value="Observation.subject.relatedSubject"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.subject.relatedSubject"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/RelatedSubject"/>
      </type>
    </element>
    <element id="Observation.specimen">
      <path value="Observation.specimen"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.specimen"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/Specimen"/>
      </type>
    </element>
    <element id="Observation.performer">
      <path value="Observation.performer"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.performer"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/Performer2"/>
      </type>
    </element>
    <element id="Observation.author">
      <path value="Observation.author"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.author"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/Author"/>
      </type>
    </element>
    <element id="Observation.informant">
      <path value="Observation.informant"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.informant"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Element"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="Observation.informant.id">
      <path value="Observation.informant.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="Observation.informant.extension">
      <path value="Observation.informant.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())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Observation.informant.typeCode">
      <path value="Observation.informant.typeCode"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.informant.typeCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <defaultValueCode value="INF"/>
      <fixedCode value="INF"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ParticipationInformationGenerator"/>
      </binding>
    </element>
    <element id="Observation.informant.contextControlCode">
      <path value="Observation.informant.contextControlCode"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.informant.contextControlCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <defaultValueCode value="OP"/>
      <fixedCode value="OP"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ContextControl"/>
      </binding>
    </element>
    <element id="Observation.informant.assignedEntity">
      <path value="Observation.informant.assignedEntity"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.informant.assignedEntity"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/AssignedEntity"/>
      </type>
    </element>
    <element id="Observation.informant.relatedEntity">
      <path value="Observation.informant.relatedEntity"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.informant.relatedEntity"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/RelatedEntity"/>
      </type>
    </element>
    <element id="Observation.participant">
      <path value="Observation.participant"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.participant"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/Participant2"/>
      </type>
    </element>
    <element id="Observation.entryRelationship">
      <path value="Observation.entryRelationship"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.entryRelationship"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Element"/>
      </type>
      <constraint>
        <key value="obs-er-1"/>
        <severity value="error"/>
        <human
               value="Only one of observation, regionOfInterest, observationMedia, substanceAdministration, supply, procedure, encounter, organizer, and act"/>
        <expression
                    value="(observation | regionOfInterest | observationMedia | substanceAdministration | supply | procedure | encounter | organizer | act).count() = 1"/>
        <source
                value="http://hl7.org/fhir/cda/StructureDefinition/Observation"/>
      </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())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="Observation.entryRelationship.id">
      <path value="Observation.entryRelationship.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="Observation.entryRelationship.extension">
      <path value="Observation.entryRelationship.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())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Observation.entryRelationship.typeCode">
      <path value="Observation.entryRelationship.typeCode"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.typeCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.inversionInd">
      <path value="Observation.entryRelationship.inversionInd"/>
      <representation value="xmlAttr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.inversionInd"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.contextConductionInd">
      <path value="Observation.entryRelationship.contextConductionInd"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.contextConductionInd"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
      </type>
      <defaultValueBoolean value="true"/>
    </element>
    <element id="Observation.entryRelationship.sequenceNumber">
      <path value="Observation.entryRelationship.sequenceNumber"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.sequenceNumber"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/INT"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.negationInd">
      <path value="Observation.entryRelationship.negationInd"/>
      <representation value="xmlAttr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.negationInd"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.seperatableInd">
      <path value="Observation.entryRelationship.seperatableInd"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.seperatableInd"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/BL"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.observation">
      <path value="Observation.entryRelationship.observation"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.observation"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/Observation"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.regionOfInterest">
      <path value="Observation.entryRelationship.regionOfInterest"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.regionOfInterest"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/RegionOfInterest"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.observationMedia">
      <path value="Observation.entryRelationship.observationMedia"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.observationMedia"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/ObservationMedia"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.substanceAdministration">
      <path value="Observation.entryRelationship.substanceAdministration"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.substanceAdministration"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/SubstanceAdministration"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.supply">
      <path value="Observation.entryRelationship.supply"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.supply"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/Supply"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.procedure">
      <path value="Observation.entryRelationship.procedure"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.procedure"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/Procedure"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.encounter">
      <path value="Observation.entryRelationship.encounter"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.encounter"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/Encounter"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.organizer">
      <path value="Observation.entryRelationship.organizer"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.organizer"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/Organizer"/>
      </type>
    </element>
    <element id="Observation.entryRelationship.act">
      <path value="Observation.entryRelationship.act"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.entryRelationship.act"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/Act"/>
      </type>
    </element>
    <element id="Observation.reference">
      <path value="Observation.reference"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.reference"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Element"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="Observation.reference.id">
      <path value="Observation.reference.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="Observation.reference.extension">
      <path value="Observation.reference.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())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Observation.reference.typeCode">
      <path value="Observation.reference.typeCode"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.reference.typeCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element id="Observation.reference.seperatableInd">
      <path value="Observation.reference.seperatableInd"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.reference.seperatableInd"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/fhir/cda/StructureDefinition/BL"/>
      </type>
    </element>
    <element id="Observation.reference.externalAct">
      <path value="Observation.reference.externalAct"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.reference.externalAct"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/ExternalAct"/>
      </type>
    </element>
    <element id="Observation.reference.externalObservation">
      <path value="Observation.reference.externalObservation"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.reference.externalObservation"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/ExternalObservation"/>
      </type>
    </element>
    <element id="Observation.reference.externalProcedure">
      <path value="Observation.reference.externalProcedure"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.reference.externalProcedure"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/ExternalProcedure"/>
      </type>
    </element>
    <element id="Observation.reference.externalDocument">
      <path value="Observation.reference.externalDocument"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.reference.externalDocument"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/ExternalDocument"/>
      </type>
    </element>
    <element id="Observation.precondition">
      <path value="Observation.precondition"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.precondition"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/Precondition"/>
      </type>
    </element>
    <element id="Observation.referenceRange">
      <path value="Observation.referenceRange"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.referenceRange"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Element"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="Observation.referenceRange.id">
      <path value="Observation.referenceRange.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="Observation.referenceRange.extension">
      <path value="Observation.referenceRange.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())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Observation.referenceRange.typeCode">
      <path value="Observation.referenceRange.typeCode"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.referenceRange.typeCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <defaultValueCode value="REFV"/>
      <fixedCode value="REFV"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ActRelationshipPertains"/>
      </binding>
    </element>
    <element id="Observation.referenceRange.observationRange">
      <path value="Observation.referenceRange.observationRange"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.referenceRange.observationRange"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/fhir/cda/StructureDefinition/ObservationRange"/>
      </type>
    </element>
  </snapshot>
  <differential>
    <element id="Observation">
      <path value="Observation"/>
    </element>
  </differential>
</StructureDefinition>