<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="encounter-outpatient" />
  <url value="http://StructureDefinition.hl7fhir.cn/encounter-outpatient" />
  <name value="EncounterOutpatient" />
  <title value="门诊" />
  <status value="draft" />
  <description value="门诊是医疗预防机构为不需要或尚未住院的群众防治疾病的一种方式。包括对病人的诊断治疗（认为必要时收进医院诊治），健康检查和预防接种，孕妇的产前检查，出院病人的随访等工作。为某类疾病专门设立的门诊，称为“专科门诊”，如心脏病、骨伤科等。&#xD;&#xA;门诊通常接诊病情表症较轻的病人，经过门诊医生一整套的诊断手段、辅助检查，给病人得出初步诊断，门诊医生能够对症治疗即给予病人进行治疗，如果门诊医生对病人病情有疑问或诊断为病情较重较急，则将病人收入住院病房，在医院作进一步检查或进行手术或相关的治疗等医疗措施。" />
  <fhirVersion value="4.0.0" />
  <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="w5" />
    <uri value="http://hl7.org/fhir/fivews" />
    <name value="FiveWs Pattern Mapping" />
  </mapping>
  <mapping>
    <identity value="v2" />
    <uri value="http://hl7.org/v2" />
    <name value="HL7 v2 Mapping" />
  </mapping>
  <kind value="resource" />
  <abstract value="false" />
  <type value="Encounter" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Encounter" />
  <derivation value="constraint" />
  <snapshot>
    <element id="Encounter">
      <path value="Encounter" />
      <short value="门诊服务" />
      <definition value="患者与医疗保健提供者之间的交互，目的是提供医疗保健服务或评估患者的健康状况。这里确定为门诊服务" />
      <alias value="Visit" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter" />
        <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-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-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>
        <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>
      <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>
      <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="Encounter[@moodCode='EVN']" />
      </mapping>
    </element>
    <element id="Encounter.id">
      <path value="Encounter.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="The only time that a resource does not have an id is when it is being submitted to the server using a create operation." />
      <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="id" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.meta">
      <path value="Encounter.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>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.implicitRules">
      <path value="Encounter.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>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <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" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.language">
      <path value="Encounter.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>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <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>
        <strength value="preferred" />
        <description value="A human language." />
        <valueSet value="http://hl7.org/fhir/ValueSet/languages" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.text">
      <path value="Encounter.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 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>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="Act.text?" />
      </mapping>
    </element>
    <element id="Encounter.contained">
      <path value="Encounter.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, and 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>
      <mapping>
        <identity value="rim" />
        <map value="Entity. Role, or Act" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.extension">
      <path value="Encounter.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 resource. 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="DomainResource.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.modifierExtension">
      <path value="Encounter.modifierExtension" />
      <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="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.&#xA;&#xA;Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension)." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="DomainResource.modifierExtension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <isModifier value="true" />
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.identifier">
      <path value="Encounter.identifier" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="type" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <short value="业务标识符" />
      <definition value="标识符，唯一且明确地标识某个域中的实体。常用作业务标识符，在不同业务域中的唯一标识ID。在很多场景下可作为交叉索引使用。" />
      <comment value="业务ID不是资源服务器上的逻辑ID（非标识主键）" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.identifier" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Identifier" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Identifier" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CX / EI (occasionally, more often EI maps to a resource id or a URL)" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]" />
      </mapping>
      <mapping>
        <identity value="servd" />
        <map value="Identifier" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.identifier" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.identifier" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-19" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".id" />
      </mapping>
    </element>
    <element id="Encounter.identifier:outpatientIdentifier">
      <path value="Encounter.identifier" />
      <sliceName value="outpatientIdentifier" />
      <short value="门诊号" />
      <definition value="门诊编号，作为门诊业务的业务主键。" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.identifier" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Identifier" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CX / EI (occasionally, more often EI maps to a resource id or a URL)" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]" />
      </mapping>
      <mapping>
        <identity value="servd" />
        <map value="Identifier" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.identifier" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.identifier" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-19" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".id" />
      </mapping>
    </element>
    <element id="Encounter.identifier:registrationIdentifier">
      <path value="Encounter.identifier" />
      <sliceName value="registrationIdentifier" />
      <short value="挂号单号" />
      <definition value="挂号单的唯一流水编号" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.identifier" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Identifier" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CX / EI (occasionally, more often EI maps to a resource id or a URL)" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]" />
      </mapping>
      <mapping>
        <identity value="servd" />
        <map value="Identifier" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.identifier" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.identifier" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-19" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".id" />
      </mapping>
    </element>
    <element id="Encounter.identifier:otherIdentifier">
      <path value="Encounter.identifier" />
      <sliceName value="otherIdentifier" />
      <short value="其他业务标识符" />
      <definition value="其他业务标识符" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.identifier" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Identifier" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CX / EI (occasionally, more often EI maps to a resource id or a URL)" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]" />
      </mapping>
      <mapping>
        <identity value="servd" />
        <map value="Identifier" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.identifier" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.identifier" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-19" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".id" />
      </mapping>
    </element>
    <element id="Encounter.status">
      <path value="Encounter.status" />
      <short value="门诊状态" />
      <definition value="描述门诊服务的各种状态&#xD;&#xA;planned | arrived | triaged | in-progress | onleave | finished | cancelled +." />
      <comment value="Note that internal business rules will determine the appropriate transitions that may occur between statuses (and also classes)." />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="Encounter.status" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="code" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isModifier value="true" />
      <isModifierReason value="This element is labeled 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="EncounterStatus" />
        </extension>
        <strength value="required" />
        <description value="Current state of the encounter." />
        <valueSet value="http://hl7.org/fhir/ValueSet/encounter-status|4.0.1" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.status" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.status" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="No clear equivalent in HL7 v2; active/finished could be inferred from PV1-44, PV1-45, PV2-24; inactive could be inferred from PV2-16" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".statusCode" />
      </mapping>
    </element>
    <element id="Encounter.status.id">
      <path value="Encounter.status.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.status.extension">
      <path value="Encounter.status.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.status.extension:status">
      <path value="Encounter.status.extension" />
      <sliceName value="status" />
      <short value="门诊状态" />
      <definition value="描述门诊服务的各种状态" />
      <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="1" />
      <max value="1" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
        <profile value="http://StructureDefinition.hl7fhir.cn/resource-status" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <binding>
        <strength value="required" />
        <valueSet value="http://ValueSet.hl7fhir.cn/encounter-status-vs" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.status.value">
      <path value="Encounter.status.value" />
      <representation value="xmlAttr" />
      <short value="Primitive value for code" />
      <definition value="Primitive value for code" />
      <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="code" />
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/regex">
          <valueString value="[^\s]+(\s[^\s]+)*" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <maxLength value="1048576" />
    </element>
    <element id="Encounter.statusHistory">
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name">
        <valueString value="StatusHistory" />
      </extension>
      <path value="Encounter.statusHistory" />
      <short value="List of past encounter statuses" />
      <definition value="The status history permits the encounter resource to contain the status history without needing to read through the historical versions of the resource, or even have the server store them." />
      <comment value="The current status is always found in the current version of the resource, not the status history." />
      <min value="0" />
      <max value="0" />
      <base>
        <path value="Encounter.statusHistory" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="BackboneElement" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.statusHistory.id">
      <path value="Encounter.statusHistory.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.statusHistory.extension">
      <path value="Encounter.statusHistory.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.statusHistory.modifierExtension">
      <path value="Encounter.statusHistory.modifierExtension" />
      <short value="Extensions that cannot be ignored even if unrecognized" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.&#xA;&#xA;Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension)." />
      <alias value="extensions" />
      <alias value="user content" />
      <alias value="modifiers" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="BackboneElement.modifierExtension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <isModifier value="true" />
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them" />
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.statusHistory.status">
      <path value="Encounter.statusHistory.status" />
      <short value="planned | arrived | triaged | in-progress | onleave | finished | cancelled +" />
      <definition value="planned | arrived | triaged | in-progress | onleave | finished | cancelled +." />
      <comment value="Note that FHIR strings SHALL NOT exceed 1MB in size" />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="Encounter.statusHistory.status" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="code" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="EncounterStatus" />
        </extension>
        <strength value="required" />
        <description value="Current state of the encounter." />
        <valueSet value="http://hl7.org/fhir/ValueSet/encounter-status|4.0.1" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.statusHistory.period">
      <path value="Encounter.statusHistory.period" />
      <short value="时段范围" />
      <definition value="由开始和结束时间以及可选时间定义的时间段范围。" />
      <comment value="注意是时间段Period数据类型，而非持续时间Duration数据类型。结束时间应总是晚于开始时间。" />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="Encounter.statusHistory.period" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="Period" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Period" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="per-1" />
        <severity value="error" />
        <human value="If present, start SHALL have a lower value than end" />
        <expression value="start.hasValue().not() or end.hasValue().not() or (start &lt;= end)" />
        <xpath value="not(exists(f:start/@value)) or not(exists(f:end/@value)) or (xs:dateTime(f:start/@value) &lt;= xs:dateTime(f:end/@value))" />
        <source value="http://hl7.org/fhir/StructureDefinition/Period" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="DR" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="IVL&lt;TS&gt;[lowClosed=&quot;true&quot; and highClosed=&quot;true&quot;] or URG&lt;TS&gt;[lowClosed=&quot;true&quot; and highClosed=&quot;true&quot;]" />
      </mapping>
    </element>
    <element id="Encounter.class">
      <path value="Encounter.class" />
      <short value="医疗事件分类" />
      <definition value="代表病人遭遇分类的概念，如门诊、住院、急诊、家庭健康或因地方差异而产生的其他情况。该出确定为门诊服务" />
      <comment value="编码可以使用枚举值或编码列表非常随意地定义。也可以非常正式的定义，如SNOMED CT。请参阅HL7 v3核心原则。" />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="Encounter.class" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="Coding" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Coding" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="EncounterClass" />
        </extension>
        <strength value="extensible" />
        <description value="医疗事件分类代码" />
        <valueSet value="http://ValueSet.hl7fhir.cn/act-encounter-code" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE subset one of the sets of component 1-3 or 4-6" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CV" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:Coding rdfs:subClassOf dt:CDCoding" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.class" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-2" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".inboundRelationship[typeCode=SUBJ].source[classCode=LIST].code" />
      </mapping>
    </element>
    <element id="Encounter.classHistory">
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name">
        <valueString value="ClassHistory" />
      </extension>
      <path value="Encounter.classHistory" />
      <short value="List of past encounter classes" />
      <definition value="The class history permits the tracking of the encounters transitions without needing to go  through the resource history.  This would be used for a case where an admission starts of as an emergency encounter, then transitions into an inpatient scenario. Doing this and not restarting a new encounter ensures that any lab/diagnostic results can more easily follow the patient and not require re-processing and not get lost or cancelled during a kind of discharge from emergency to inpatient." />
      <min value="0" />
      <max value="0" />
      <base>
        <path value="Encounter.classHistory" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="BackboneElement" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.classHistory.id">
      <path value="Encounter.classHistory.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.classHistory.extension">
      <path value="Encounter.classHistory.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.classHistory.modifierExtension">
      <path value="Encounter.classHistory.modifierExtension" />
      <short value="Extensions that cannot be ignored even if unrecognized" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.&#xA;&#xA;Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension)." />
      <alias value="extensions" />
      <alias value="user content" />
      <alias value="modifiers" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="BackboneElement.modifierExtension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <isModifier value="true" />
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them" />
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.classHistory.class">
      <path value="Encounter.classHistory.class" />
      <short value="inpatient | outpatient | ambulatory | emergency +" />
      <definition value="inpatient | outpatient | ambulatory | emergency +." />
      <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." />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="Encounter.classHistory.class" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="Coding" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="EncounterClass" />
        </extension>
        <strength value="extensible" />
        <description value="Classification of the encounter." />
        <valueSet value="http://terminology.hl7.org/ValueSet/v3-ActEncounterCode" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE subset one of the sets of component 1-3 or 4-6" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CV" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:Coding rdfs:subClassOf dt:CDCoding" />
      </mapping>
    </element>
    <element id="Encounter.classHistory.period">
      <path value="Encounter.classHistory.period" />
      <short value="The time that the episode was in the specified class" />
      <definition value="The time that the episode was in the specified class." />
      <comment value="A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. &quot;the patient was an inpatient of the hospital for this time range&quot;) or one value from the range applies (e.g. &quot;give to the patient between these two times&quot;).&#xA;&#xA;Period is not used for a duration (a measure of elapsed time). See [Duration](datatypes.html#Duration)." />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="Encounter.classHistory.period" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="Period" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="per-1" />
        <severity value="error" />
        <human value="If present, start SHALL have a lower value than end" />
        <expression value="start.hasValue().not() or end.hasValue().not() or (start &lt;= end)" />
        <xpath value="not(exists(f:start/@value)) or not(exists(f:end/@value)) or (xs:dateTime(f:start/@value) &lt;= xs:dateTime(f:end/@value))" />
        <source value="http://hl7.org/fhir/StructureDefinition/Period" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="DR" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="IVL&lt;TS&gt;[lowClosed=&quot;true&quot; and highClosed=&quot;true&quot;] or URG&lt;TS&gt;[lowClosed=&quot;true&quot; and highClosed=&quot;true&quot;]" />
      </mapping>
    </element>
    <element id="Encounter.type">
      <path value="Encounter.type" />
      <short value="医疗事件特定类型" />
      <definition value="描述医疗事件的特定类型，例如，电子邮件咨询，日间手术，熟练的护理，康复）。" />
      <comment value="这是表示术语的常用模型，但并不适用于所有的术语。在某些情况下，会直接使用编码，并使用自己的结构来管理描述文本、编码、翻译、元素之间的关系、前协调（预置映射规则）和后协调（映射后置处理）。" />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="Encounter.type" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="EncounterType" />
        </extension>
        <strength value="example" />
        <description value="The type of encounter." />
        <valueSet value="http://ValueSet.hl7fhir.cn/encounter-type-vs" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.code" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.class" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-4 / PV1-18" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".code" />
      </mapping>
    </element>
    <element id="Encounter.serviceType">
      <path value="Encounter.serviceType" />
      <short value="医疗事件的广泛分类" />
      <definition value="将提供的服务的广泛分类(如心脏病学)。" />
      <comment value="这是表示术语的常用模型，但并不适用于所有的术语。在某些情况下，会直接使用编码，并使用自己的结构来管理描述文本、编码、翻译、元素之间的关系、前协调（预置映射规则）和后协调（映射后置处理）。" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.serviceType" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="EncounterServiceType" />
        </extension>
        <strength value="example" />
        <description value="Broad categorization of the service that is to be provided." />
        <valueSet value="http://hl7.org/fhir/ValueSet/service-type" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.code" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-10" />
      </mapping>
    </element>
    <element id="Encounter.priority">
      <path value="Encounter.priority" />
      <short value="概念——指向术语或通过文本来表示" />
      <definition value="一种概念，它可以通过对术语或本体的正式引用来定义，也可以通过文本来表示。" />
      <comment value="这是表示术语的常用模型，但并不适用于所有的术语。在某些情况下，会直接使用编码，并使用自己的结构来管理描述文本、编码、翻译、元素之间的关系、前协调（预置映射规则）和后协调（映射后置处理）。" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.priority" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Priority" />
        </extension>
        <strength value="example" />
        <description value="优先级" />
        <valueSet value="http://ValueSet.hl7fhir.cn/act-priority-vs" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.grade" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV2-25" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".priorityCode" />
      </mapping>
    </element>
    <element id="Encounter.subject">
      <path value="Encounter.subject" />
      <short value="患者" />
      <definition value="引用患者信息" />
      <comment value="引用应该是对实际FHIR资源的引用，并且应该是可解析的(允许访问控制、临时不可用等)。解析可以通过从URL检索来实现，也可以在适用的情况下通过资源类型来实现，将绝对引用作为标准URL处理并在本地注册表/存储库中查找它。" />
      <alias value="patient" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.subject" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Group" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.subject" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.subject[x]" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PID-3" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".participation[typeCode=SBJ]/role[classCode=PAT]" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.subject" />
      </mapping>
    </element>
    <element id="Encounter.episodeOfCare">
      <path value="Encounter.episodeOfCare" />
      <short value="医疗周期" />
      <definition value="引用医疗周期资源，有关在一段时间内可能发生相关医疗保健活动的患者与医疗保健提供者的关联的信息。" />
      <comment value="引用应该是对实际FHIR资源的引用，并且应该是可解析的(允许访问控制、临时不可用等)。解析可以通过从URL检索来实现，也可以在适用的情况下通过资源类型来实现，将绝对引用作为标准URL处理并在本地注册表/存储库中查找它。" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.episodeOfCare" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/EpisodeOfCare" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.context" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.context" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-54, PV1-53" />
      </mapping>
    </element>
    <element id="Encounter.basedOn">
      <path value="Encounter.basedOn" />
      <short value="引用类型" />
      <definition value="从一个资源到另一个资源的引用" />
      <comment value="引用应该是对实际FHIR资源的引用，并且应该是可解析的(允许访问控制、临时不可用等)。解析可以通过从URL检索来实现，也可以在适用的情况下通过资源类型来实现，将绝对引用作为标准URL处理并在本地注册表/存储库中查找它。" />
      <alias value="incomingReferral" />
      <min value="0" />
      <max value="0" />
      <base>
        <path value="Encounter.basedOn" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/ServiceRequest" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.basedOn" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".reason.ClinicalDocument" />
      </mapping>
    </element>
    <element id="Encounter.participant">
      <path value="Encounter.participant" />
      <short value="参与的医护人员名单" />
      <definition value="负责提供服务的人员列表。" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.participant" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="BackboneElement" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.performer" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="ROL" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".participation[typeCode=PFM]" />
      </mapping>
    </element>
    <element id="Encounter.participant.id">
      <path value="Encounter.participant.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.participant.extension">
      <path value="Encounter.participant.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.participant.modifierExtension">
      <path value="Encounter.participant.modifierExtension" />
      <short value="Extensions that cannot be ignored even if unrecognized" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.&#xA;&#xA;Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension)." />
      <alias value="extensions" />
      <alias value="user content" />
      <alias value="modifiers" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="BackboneElement.modifierExtension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <isModifier value="true" />
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them" />
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.participant.type">
      <path value="Encounter.participant.type" />
      <short value="参与者角色" />
      <definition value="在门诊服务中参与者的角色" />
      <comment value="这是表示术语的常用模型，但并不适用于所有的术语。在某些情况下，会直接使用编码，并使用自己的结构来管理描述文本、编码、翻译、元素之间的关系、前协调（预置映射规则）和后协调（映射后置处理）。" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.participant.type" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ParticipantType" />
        </extension>
        <strength value="extensible" />
        <description value="Role of participant in encounter." />
        <valueSet value="http://ValueSet.hl7fhir.cn/encounter-participant-type-vs" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.performer.function" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="ROL-3 (or maybe PRT-4)" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".functionCode" />
      </mapping>
    </element>
    <element id="Encounter.participant.period">
      <path value="Encounter.participant.period" />
      <short value="参与者参与的时间段" />
      <definition value="由开始和结束时间以及可选时间定义的时间段范围。" />
      <comment value="注意是时间段Period数据类型，而非持续时间Duration数据类型。结束时间应总是晚于开始时间。" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.participant.period" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Period" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Period" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="per-1" />
        <severity value="error" />
        <human value="If present, start SHALL have a lower value than end" />
        <expression value="start.hasValue().not() or end.hasValue().not() or (start &lt;= end)" />
        <xpath value="not(exists(f:start/@value)) or not(exists(f:end/@value)) or (xs:dateTime(f:start/@value) &lt;= xs:dateTime(f:end/@value))" />
        <source value="http://hl7.org/fhir/StructureDefinition/Period" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="DR" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="IVL&lt;TS&gt;[lowClosed=&quot;true&quot; and highClosed=&quot;true&quot;] or URG&lt;TS&gt;[lowClosed=&quot;true&quot; and highClosed=&quot;true&quot;]" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="ROL-5, ROL-6 (or maybe PRT-5)" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".time" />
      </mapping>
    </element>
    <element id="Encounter.participant.individual">
      <path value="Encounter.participant.individual" />
      <short value="参与者" />
      <definition value="以引用方式关联参与者" />
      <comment value="引用应该是对实际FHIR资源的引用，并且应该是可解析的(允许访问控制、临时不可用等)。解析可以通过从URL检索来实现，也可以在适用的情况下通过资源类型来实现，将绝对引用作为标准URL处理并在本地注册表/存储库中查找它。" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.participant.individual" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Practitioner" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/PractitionerRole" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/RelatedPerson" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.performer.actor" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.who" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="ROL-4" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".role" />
      </mapping>
    </element>
    <element id="Encounter.appointment">
      <path value="Encounter.appointment" />
      <short value="预约或者挂号信息" />
      <definition value="引用预约和挂号信息" />
      <comment value="引用应该是对实际FHIR资源的引用，并且应该是可解析的(允许访问控制、临时不可用等)。解析可以通过从URL检索来实现，也可以在适用的情况下通过资源类型来实现，将绝对引用作为标准URL处理并在本地注册表/存储库中查找它。" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.appointment" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Appointment" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.basedOn" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="SCH-1 / SCH-2" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".outboundRelationship[typeCode=FLFS].target[classCode=ENC, moodCode=APT]" />
      </mapping>
    </element>
    <element id="Encounter.period">
      <path value="Encounter.period" />
      <short value="就诊时间" />
      <definition value="门诊就诊时间段" />
      <comment value="注意是时间段Period数据类型，而非持续时间Duration数据类型。结束时间应总是晚于开始时间。" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.period" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Period" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Period" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="per-1" />
        <severity value="error" />
        <human value="If present, start SHALL have a lower value than end" />
        <expression value="start.hasValue().not() or end.hasValue().not() or (start &lt;= end)" />
        <xpath value="not(exists(f:start/@value)) or not(exists(f:end/@value)) or (xs:dateTime(f:start/@value) &lt;= xs:dateTime(f:end/@value))" />
        <source value="http://hl7.org/fhir/StructureDefinition/Period" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="DR" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="IVL&lt;TS&gt;[lowClosed=&quot;true&quot; and highClosed=&quot;true&quot;] or URG&lt;TS&gt;[lowClosed=&quot;true&quot; and highClosed=&quot;true&quot;]" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.occurrence[x]" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.done[x]" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-44, PV1-45" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".effectiveTime (low &amp; high)" />
      </mapping>
    </element>
    <element id="Encounter.length">
      <path value="Encounter.length" />
      <short value="Quantity of time the encounter lasted (less time absent)" />
      <definition value="Quantity of time the encounter lasted. This excludes the time during leaves of absence." />
      <comment value="May differ from the time the Encounter.period lasted because of leave of absence." />
      <min value="0" />
      <max value="0" />
      <base>
        <path value="Encounter.length" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Duration" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="qty-3" />
        <severity value="error" />
        <human value="If a code for the unit is present, the system SHALL also be present" />
        <expression value="code.empty() or system.exists()" />
        <xpath value="not(exists(f:code)) or exists(f:system)" />
        <source value="http://hl7.org/fhir/StructureDefinition/Quantity" />
      </constraint>
      <constraint>
        <key value="drt-1" />
        <severity value="error" />
        <human value="There SHALL be a code if there is a value and it SHALL be an expression of time.  If system is present, it SHALL be UCUM." />
        <expression value="code.exists() implies ((system = %ucum) and value.exists())" />
        <xpath value="(f:code or not(f:value)) and (not(exists(f:system)) or f:system/@value='http://unitsofmeasure.org')" />
        <source value="http://hl7.org/fhir/StructureDefinition/Duration" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="SN (see also Range) or CQ" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="PQ, IVL&lt;PQ&gt;, MO, CO, depending on the values" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="PQ, IVL&lt;PQ&gt; depending on the values" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.occurrence[x]" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="(PV1-45 less PV1-44) iff ( (PV1-44 not empty) and (PV1-45 not empty) ); units in minutes" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".lengthOfStayQuantity" />
      </mapping>
    </element>
    <element id="Encounter.reasonCode">
      <path value="Encounter.reasonCode" />
      <short value="概念——指向术语或通过文本来表示" />
      <definition value="一种概念，它可以通过对术语或本体的正式引用来定义，也可以通过文本来表示。" />
      <comment value="这是表示术语的常用模型，但并不适用于所有的术语。在某些情况下，会直接使用编码，并使用自己的结构来管理描述文本、编码、翻译、元素之间的关系、前协调（预置映射规则）和后协调（映射后置处理）。" />
      <alias value="Indication" />
      <alias value="Admission diagnosis" />
      <min value="0" />
      <max value="0" />
      <base>
        <path value="Encounter.reasonCode" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="EncounterReason" />
        </extension>
        <strength value="preferred" />
        <description value="Reason why the encounter takes place." />
        <valueSet value="http://hl7.org/fhir/ValueSet/encounter-reason" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.reasonCode" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.why[x]" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="EVN-4 / PV2-3 (note: PV2-3 is nominally constrained to inpatient admissions; HL7 v2 makes no vocabulary suggestions for PV2-3; would not expect PV2 segment or PV2-3 to be in use in all implementations )" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".reasonCode" />
      </mapping>
    </element>
    <element id="Encounter.reasonReference">
      <path value="Encounter.reasonReference" />
      <short value="引用类型" />
      <definition value="从一个资源到另一个资源的引用" />
      <comment value="引用应该是对实际FHIR资源的引用，并且应该是可解析的(允许访问控制、临时不可用等)。解析可以通过从URL检索来实现，也可以在适用的情况下通过资源类型来实现，将绝对引用作为标准URL处理并在本地注册表/存储库中查找它。" />
      <alias value="Indication" />
      <alias value="Admission diagnosis" />
      <min value="0" />
      <max value="0" />
      <base>
        <path value="Encounter.reasonReference" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Condition" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Procedure" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Observation" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/ImmunizationRecommendation" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.reasonCode" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.why[x]" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="EVN-4 / PV2-3 (note: PV2-3 is nominally constrained to inpatient admissions; HL7 v2 makes no vocabulary suggestions for PV2-3; would not expect PV2 segment or PV2-3 to be in use in all implementations )" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".reasonCode" />
      </mapping>
    </element>
    <element id="Encounter.diagnosis">
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name">
        <valueString value="Diagnosis" />
      </extension>
      <path value="Encounter.diagnosis" />
      <short value="诊断" />
      <definition value="与此相关的诊断列表。" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.diagnosis" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="BackboneElement" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".outboundRelationship[typeCode=RSON]" />
      </mapping>
    </element>
    <element id="Encounter.diagnosis.id">
      <path value="Encounter.diagnosis.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.diagnosis.extension">
      <path value="Encounter.diagnosis.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.diagnosis.modifierExtension">
      <path value="Encounter.diagnosis.modifierExtension" />
      <short value="Extensions that cannot be ignored even if unrecognized" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.&#xA;&#xA;Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension)." />
      <alias value="extensions" />
      <alias value="user content" />
      <alias value="modifiers" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="BackboneElement.modifierExtension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <isModifier value="true" />
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them" />
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.diagnosis.condition">
      <path value="Encounter.diagnosis.condition" />
      <short value="与该门诊有关的诊断或程序" />
      <definition value="从一个资源到另一个资源的引用" />
      <comment value="引用应该是对实际FHIR资源的引用，并且应该是可解析的(允许访问控制、临时不可用等)。解析可以通过从URL检索来实现，也可以在适用的情况下通过资源类型来实现，将绝对引用作为标准URL处理并在本地注册表/存储库中查找它。" />
      <alias value="Admission diagnosis" />
      <alias value="discharge diagnosis" />
      <alias value="indication" />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="Encounter.diagnosis.condition" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Condition" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Procedure" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.reasonReference" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.why[x]" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="Resources that would commonly referenced at Encounter.indication would be Condition and/or Procedure. These most closely align with DG1/PRB and PR1 respectively." />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".outboundRelationship[typeCode=RSON].target" />
      </mapping>
    </element>
    <element id="Encounter.diagnosis.use">
      <path value="Encounter.diagnosis.use" />
      <short value="诊断类型" />
      <definition value="该诊断在门诊中的类型" />
      <comment value="这是表示术语的常用模型，但并不适用于所有的术语。在某些情况下，会直接使用编码，并使用自己的结构来管理描述文本、编码、翻译、元素之间的关系、前协调（预置映射规则）和后协调（映射后置处理）。" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.diagnosis.use" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="DiagnosisRole" />
        </extension>
        <strength value="preferred" />
        <description value="诊断类型代码表" />
        <valueSet value="http://ValueSet.hl7fhir.cn/diagnosis-role" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
    </element>
    <element id="Encounter.diagnosis.rank">
      <path value="Encounter.diagnosis.rank" />
      <short value="Ranking of the diagnosis (for each role type)" />
      <definition value="Ranking of the diagnosis (for each role type)." />
      <comment value="32 bit number; for values larger than this, use decimal" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.diagnosis.rank" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="positiveInt" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".outboundRelationship[typeCode=RSON].priority" />
      </mapping>
    </element>
    <element id="Encounter.account">
      <path value="Encounter.account" />
      <short value="The set of accounts that may be used for billing for this Encounter" />
      <definition value="The set of accounts that may be used for billing for this Encounter." />
      <comment value="The billing system may choose to allocate billable items associated with the Encounter to different referenced Accounts based on internal business rules." />
      <min value="0" />
      <max value="0" />
      <base>
        <path value="Encounter.account" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Account" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".pertains.A_Account" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization">
      <path value="Encounter.hospitalization" />
      <short value="Details about the admission to a healthcare service" />
      <definition value="Details about the admission to a healthcare service." />
      <comment value="An Encounter may cover more than just the inpatient stay. Contexts such as outpatients, community clinics, and aged care facilities are also included.&#xD;&#xD;The duration recorded in the period of this encounter covers the entire scope of this hospitalization record." />
      <min value="0" />
      <max value="0" />
      <base>
        <path value="Encounter.hospitalization" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="BackboneElement" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".outboundRelationship[typeCode=COMP].target[classCode=ENC, moodCode=EVN]" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.id">
      <path value="Encounter.hospitalization.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.extension">
      <path value="Encounter.hospitalization.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.modifierExtension">
      <path value="Encounter.hospitalization.modifierExtension" />
      <short value="Extensions that cannot be ignored even if unrecognized" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.&#xA;&#xA;Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension)." />
      <alias value="extensions" />
      <alias value="user content" />
      <alias value="modifiers" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="BackboneElement.modifierExtension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <isModifier value="true" />
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them" />
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.preAdmissionIdentifier">
      <path value="Encounter.hospitalization.preAdmissionIdentifier" />
      <short value="Pre-admission identifier" />
      <definition value="Pre-admission identifier." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.hospitalization.preAdmissionIdentifier" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Identifier" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CX / EI (occasionally, more often EI maps to a resource id or a URL)" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]" />
      </mapping>
      <mapping>
        <identity value="servd" />
        <map value="Identifier" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-5" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".id" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.origin">
      <path value="Encounter.hospitalization.origin" />
      <short value="The location/organization from which the patient came before admission" />
      <definition value="The location/organization from which the patient came before admission." />
      <comment value="References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.hospitalization.origin" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Location" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".participation[typeCode=ORG].role" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.admitSource">
      <path value="Encounter.hospitalization.admitSource" />
      <short value="From where patient was admitted (physician referral, transfer)" />
      <definition value="From where patient was admitted (physician referral, transfer)." />
      <comment value="Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.hospitalization.admitSource" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="AdmitSource" />
        </extension>
        <strength value="preferred" />
        <description value="From where the patient was admitted." />
        <valueSet value="http://hl7.org/fhir/ValueSet/encounter-admit-source" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-14" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".admissionReferralSourceCode" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.reAdmission">
      <path value="Encounter.hospitalization.reAdmission" />
      <short value="The type of hospital re-admission that has occurred (if any). If the value is absent, then this is not identified as a readmission" />
      <definition value="Whether this hospitalization is a readmission and why if known." />
      <comment value="Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.hospitalization.reAdmission" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ReAdmissionType" />
        </extension>
        <strength value="example" />
        <description value="The reason for re-admission of this hospitalization encounter." />
        <valueSet value="http://terminology.hl7.org/ValueSet/v2-0092" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-13" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.dietPreference">
      <path value="Encounter.hospitalization.dietPreference" />
      <short value="Diet preferences reported by the patient" />
      <definition value="Diet preferences reported by the patient." />
      <comment value="For example, a patient may request both a dairy-free and nut-free diet preference (not mutually exclusive)." />
      <requirements value="Used to track patient's diet restrictions and/or preference. For a complete description of the nutrition needs of a patient during their stay, one should use the nutritionOrder resource which links to Encounter." />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.hospitalization.dietPreference" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="PatientDiet" />
        </extension>
        <strength value="example" />
        <description value="Medical, cultural or ethical food preferences to help with catering requirements." />
        <valueSet value="http://hl7.org/fhir/ValueSet/encounter-diet" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-38" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".outboundRelationship[typeCode=COMP].target[classCode=SBADM, moodCode=EVN, code=&quot;diet&quot;]" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.specialCourtesy">
      <path value="Encounter.hospitalization.specialCourtesy" />
      <short value="Special courtesies (VIP, board member)" />
      <definition value="Special courtesies (VIP, board member)." />
      <comment value="Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination." />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.hospitalization.specialCourtesy" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Courtesies" />
        </extension>
        <strength value="preferred" />
        <description value="Special courtesies." />
        <valueSet value="http://hl7.org/fhir/ValueSet/encounter-special-courtesy" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-16" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".specialCourtesiesCode" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.specialArrangement">
      <path value="Encounter.hospitalization.specialArrangement" />
      <short value="Wheelchair, translator, stretcher, etc." />
      <definition value="Any special requests that have been made for this hospitalization encounter, such as the provision of specific equipment or other things." />
      <comment value="Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination." />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.hospitalization.specialArrangement" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Arrangements" />
        </extension>
        <strength value="preferred" />
        <description value="Special arrangements." />
        <valueSet value="http://hl7.org/fhir/ValueSet/encounter-special-arrangements" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-15 / OBR-30 / OBR-43" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".specialArrangementCode" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.destination">
      <path value="Encounter.hospitalization.destination" />
      <short value="Location/organization to which the patient is discharged" />
      <definition value="Location/organization to which the patient is discharged." />
      <comment value="References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.hospitalization.destination" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Location" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-37" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".participation[typeCode=DST]" />
      </mapping>
    </element>
    <element id="Encounter.hospitalization.dischargeDisposition">
      <path value="Encounter.hospitalization.dischargeDisposition" />
      <short value="Category or kind of location after discharge" />
      <definition value="Category or kind of location after discharge." />
      <comment value="Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.hospitalization.dischargeDisposition" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="DischargeDisp" />
        </extension>
        <strength value="example" />
        <description value="Discharge Disposition." />
        <valueSet value="http://hl7.org/fhir/ValueSet/encounter-discharge-disposition" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-36" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".dischargeDispositionCode" />
      </mapping>
    </element>
    <element id="Encounter.location">
      <path value="Encounter.location" />
      <short value="门诊诊室" />
      <definition value="病人在此遭遇期间所处门诊诊室。" />
      <comment value="Virtual encounters can be recorded in the Encounter by specifying a location reference to a location of type &quot;kind&quot; such as &quot;client's home&quot; and an encounter.class = &quot;virtual&quot;." />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Encounter.location" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="BackboneElement" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".participation[typeCode=LOC]" />
      </mapping>
    </element>
    <element id="Encounter.location.id">
      <path value="Encounter.location.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.location.extension">
      <path value="Encounter.location.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.location.modifierExtension">
      <path value="Encounter.location.modifierExtension" />
      <short value="Extensions that cannot be ignored even if unrecognized" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.&#xA;&#xA;Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension)." />
      <alias value="extensions" />
      <alias value="user content" />
      <alias value="modifiers" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="BackboneElement.modifierExtension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <isModifier value="true" />
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them" />
      <isSummary value="true" />
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.location.location">
      <path value="Encounter.location.location" />
      <short value="Location the encounter takes place" />
      <definition value="The location where the encounter takes place." />
      <comment value="References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository." />
      <min value="1" />
      <max value="1" />
      <base>
        <path value="Encounter.location.location" />
        <min value="1" />
        <max value="1" />
      </base>
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Location" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.location" />
      </mapping>
      <mapping>
        <identity value="w5" />
        <map value="FiveWs.where[x]" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PV1-3 / PV1-6 / PV1-11 / PV1-42 / PV1-43" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".role" />
      </mapping>
    </element>
    <element id="Encounter.location.status">
      <path value="Encounter.location.status" />
      <short value="患者在该段时段并且在该诊室的状态" />
      <definition value="在指定的时间内，参与者在指定地点的存在状态。如果参与者不在该地点，那么该周期将有一个结束日期/时间。计划|活动|保留|完成" />
      <comment value="When the patient is no longer active at a location, then the period end date is entered, and the status may be changed to completed." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.location.status" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="code" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="EncounterLocationStatus" />
        </extension>
        <strength value="required" />
        <description value="The status of the location." />
        <valueSet value="http://hl7.org/fhir/ValueSet/encounter-location-status|4.0.1" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".role.statusCode" />
      </mapping>
    </element>
    <element id="Encounter.location.status.id">
      <path value="Encounter.location.status.id" />
      <representation value="xmlAttr" />
      <short value="Unique id for inter-element referencing" />
      <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Element.id" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
    </element>
    <element id="Encounter.location.status.extension">
      <path value="Encounter.location.status.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <description value="Extensions are always sliced by (at least) url" />
        <rules value="open" />
      </slicing>
      <short value="Additional content defined by implementations" />
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
      <alias value="extensions" />
      <alias value="user content" />
      <min value="0" />
      <max value="*" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.location.status.extension:status">
      <path value="Encounter.location.status.extension" />
      <sliceName value="status" />
      <short value="患者在该段时段并且在该位置的状态" />
      <definition value="在指定的时间内，参与者在指定地点的存在状态。如果参与者不在该地点，那么该周期将有一个结束日期/时间。计划|活动|保留|完成" />
      <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="1" />
      <base>
        <path value="Element.extension" />
        <min value="0" />
        <max value="*" />
      </base>
      <type>
        <code value="Extension" />
        <profile value="http://StructureDefinition.hl7fhir.cn/resource-status" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ext-1" />
        <severity value="error" />
        <human value="Must have either extensions or value[x], not both" />
        <expression value="extension.exists() != value.exists()" />
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
      </constraint>
      <binding>
        <strength value="required" />
        <valueSet value="http://ValueSet.hl7fhir.cn/encounter-location-status-vs" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A" />
      </mapping>
    </element>
    <element id="Encounter.location.status.value">
      <path value="Encounter.location.status.value" />
      <representation value="xmlAttr" />
      <short value="Primitive value for code" />
      <definition value="Primitive value for code" />
      <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="code" />
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/regex">
          <valueString value="[^\s]+(\s[^\s]+)*" />
        </extension>
        <code value="http://hl7.org/fhirpath/System.String" />
      </type>
      <maxLength value="1048576" />
    </element>
    <element id="Encounter.location.physicalType">
      <path value="Encounter.location.physicalType" />
      <short value="位置的物理形式" />
      <definition value="位置的物理形式，例如建筑物、房间、车辆、道路。病床，这里为房间" />
      <comment value="这是表示术语的常用模型，但并不适用于所有的术语。在某些情况下，会直接使用编码，并使用自己的结构来管理描述文本、编码、翻译、元素之间的关系、前协调（预置映射规则）和后协调（映射后置处理）。" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.location.physicalType" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="PhysicalType" />
        </extension>
        <strength value="example" />
        <description value="Physical form of the location." />
        <valueSet value="http://ValueSet.hl7fhir.cn/location-physical-type-vs" />
      </binding>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="CE/CNE/CWE" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="CD" />
      </mapping>
      <mapping>
        <identity value="orim" />
        <map value="fhir:CodeableConcept rdfs:subClassOf dt:CD" />
      </mapping>
    </element>
    <element id="Encounter.location.period">
      <path value="Encounter.location.period" />
      <short value="时段范围" />
      <definition value="由开始和结束时间以及可选时间定义的时间段范围。" />
      <comment value="周期指定时间范围;使用的上下文将说明整个范围是否适用(例如:“该病人是该医院在此时间范围内的住院病人”)或应用该时间范围中的一个值(例如:“在这两次之间给病人”)。&#xD;&#xA;Period不用于持续时间(运行时间的度量)。[时间](datatypes.html #持续时间)。" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.location.period" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Period" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Period" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="per-1" />
        <severity value="error" />
        <human value="If present, start SHALL have a lower value than end" />
        <expression value="start.hasValue().not() or end.hasValue().not() or (start &lt;= end)" />
        <xpath value="not(exists(f:start/@value)) or not(exists(f:end/@value)) or (xs:dateTime(f:start/@value) &lt;= xs:dateTime(f:end/@value))" />
        <source value="http://hl7.org/fhir/StructureDefinition/Period" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="DR" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="IVL&lt;TS&gt;[lowClosed=&quot;true&quot; and highClosed=&quot;true&quot;] or URG&lt;TS&gt;[lowClosed=&quot;true&quot; and highClosed=&quot;true&quot;]" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".time" />
      </mapping>
    </element>
    <element id="Encounter.serviceProvider">
      <path value="Encounter.serviceProvider" />
      <short value="门诊科室" />
      <definition value="这次门诊服务的组织。" />
      <comment value="引用应该是对实际FHIR资源的引用，并且应该是可解析的(允许访问控制、临时不可用等)。解析可以通过从URL检索来实现，也可以在适用的情况下通过资源类型来实现，将绝对引用作为标准URL处理并在本地注册表/存储库中查找它。" />
      <min value="0" />
      <max value="1" />
      <base>
        <path value="Encounter.serviceProvider" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.performer.actor" />
      </mapping>
      <mapping>
        <identity value="v2" />
        <map value="PL.6  &amp; PL.1" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".particiaption[typeCode=PFM].role" />
      </mapping>
    </element>
    <element id="Encounter.partOf">
      <path value="Encounter.partOf" />
      <short value="引用类型" />
      <definition value="从一个资源到另一个资源的引用" />
      <comment value="引用应该是对实际FHIR资源的引用，并且应该是可解析的(允许访问控制、临时不可用等)。解析可以通过从URL检索来实现，也可以在适用的情况下通过资源类型来实现，将绝对引用作为标准URL处理并在本地注册表/存储库中查找它。" />
      <min value="0" />
      <max value="0" />
      <base>
        <path value="Encounter.partOf" />
        <min value="0" />
        <max value="1" />
      </base>
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Encounter" />
      </type>
      <condition value="ele-1" />
      <constraint>
        <key value="ele-1" />
        <severity value="error" />
        <human value="All FHIR elements must have a @value or children" />
        <expression value="hasValue() or (children().count() &gt; id.count())" />
        <xpath value="@value|f:*|h:div" />
        <source value="http://hl7.org/fhir/StructureDefinition/Element" />
      </constraint>
      <constraint>
        <key value="ref-1" />
        <severity value="error" />
        <human value="SHALL have a contained resource if a local reference is provided" />
        <expression value="reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))" />
        <xpath value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])" />
        <source value="http://hl7.org/fhir/StructureDefinition/Reference" />
      </constraint>
      <mapping>
        <identity value="rim" />
        <map value="n/a" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)" />
      </mapping>
      <mapping>
        <identity value="workflow" />
        <map value="Event.partOf" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value=".inboundRelationship[typeCode=COMP].source[classCode=COMP, moodCode=EVN]" />
      </mapping>
    </element>
  </snapshot>
  <differential>
    <element id="Encounter">
      <path value="Encounter" />
      <short value="门诊服务" />
      <definition value="患者与医疗保健提供者之间的交互，目的是提供医疗保健服务或评估患者的健康状况。这里确定为门诊服务" />
    </element>
    <element id="Encounter.identifier">
      <path value="Encounter.identifier" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="type" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <type>
        <code value="Identifier" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Identifier" />
      </type>
    </element>
    <element id="Encounter.identifier:outpatientIdentifier">
      <path value="Encounter.identifier" />
      <sliceName value="outpatientIdentifier" />
      <short value="门诊号" />
      <definition value="门诊编号，作为门诊业务的业务主键。" />
      <max value="1" />
    </element>
    <element id="Encounter.identifier:registrationIdentifier">
      <path value="Encounter.identifier" />
      <sliceName value="registrationIdentifier" />
      <short value="挂号单号" />
      <definition value="挂号单的唯一流水编号" />
      <max value="1" />
    </element>
    <element id="Encounter.identifier:otherIdentifier">
      <path value="Encounter.identifier" />
      <sliceName value="otherIdentifier" />
      <short value="其他业务标识符" />
      <definition value="其他业务标识符" />
    </element>
    <element id="Encounter.status">
      <path value="Encounter.status" />
      <short value="门诊状态" />
      <definition value="描述门诊服务的各种状态&#xD;&#xA;planned | arrived | triaged | in-progress | onleave | finished | cancelled +." />
    </element>
    <element id="Encounter.status.extension">
      <path value="Encounter.status.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Encounter.status.extension:status">
      <path value="Encounter.status.extension" />
      <sliceName value="status" />
      <short value="门诊状态" />
      <definition value="描述门诊服务的各种状态" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://StructureDefinition.hl7fhir.cn/resource-status" />
      </type>
      <binding>
        <strength value="required" />
        <valueSet value="http://ValueSet.hl7fhir.cn/encounter-status-vs" />
      </binding>
    </element>
    <element id="Encounter.statusHistory">
      <path value="Encounter.statusHistory" />
      <max value="0" />
    </element>
    <element id="Encounter.statusHistory.period">
      <path value="Encounter.statusHistory.period" />
      <type>
        <code value="Period" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Period" />
      </type>
    </element>
    <element id="Encounter.class">
      <path value="Encounter.class" />
      <short value="医疗事件分类" />
      <definition value="代表病人遭遇分类的概念，如门诊、住院、急诊、家庭健康或因地方差异而产生的其他情况。该出确定为门诊服务" />
      <type>
        <code value="Coding" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Coding" />
      </type>
      <binding>
        <strength value="extensible" />
        <description value="医疗事件分类代码" />
        <valueSet value="http://ValueSet.hl7fhir.cn/act-encounter-code" />
      </binding>
    </element>
    <element id="Encounter.classHistory">
      <path value="Encounter.classHistory" />
      <max value="0" />
    </element>
    <element id="Encounter.type">
      <path value="Encounter.type" />
      <short value="医疗事件特定类型" />
      <definition value="描述医疗事件的特定类型，例如，电子邮件咨询，日间手术，熟练的护理，康复）。" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <binding>
        <strength value="example" />
        <valueSet value="http://ValueSet.hl7fhir.cn/encounter-type-vs" />
      </binding>
    </element>
    <element id="Encounter.serviceType">
      <path value="Encounter.serviceType" />
      <short value="医疗事件的广泛分类" />
      <definition value="将提供的服务的广泛分类(如心脏病学)。" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
    </element>
    <element id="Encounter.priority">
      <path value="Encounter.priority" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <binding>
        <strength value="example" />
        <description value="优先级" />
        <valueSet value="http://ValueSet.hl7fhir.cn/act-priority-vs" />
      </binding>
    </element>
    <element id="Encounter.subject">
      <path value="Encounter.subject" />
      <short value="患者" />
      <definition value="引用患者信息" />
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
      </type>
    </element>
    <element id="Encounter.episodeOfCare">
      <path value="Encounter.episodeOfCare" />
      <short value="医疗周期" />
      <definition value="引用医疗周期资源，有关在一段时间内可能发生相关医疗保健活动的患者与医疗保健提供者的关联的信息。" />
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
      </type>
    </element>
    <element id="Encounter.basedOn">
      <path value="Encounter.basedOn" />
      <max value="0" />
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
      </type>
    </element>
    <element id="Encounter.participant">
      <path value="Encounter.participant" />
      <short value="参与的医护人员名单" />
      <definition value="负责提供服务的人员列表。" />
    </element>
    <element id="Encounter.participant.type">
      <path value="Encounter.participant.type" />
      <short value="参与者角色" />
      <definition value="在门诊服务中参与者的角色" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <binding>
        <strength value="extensible" />
        <valueSet value="http://ValueSet.hl7fhir.cn/encounter-participant-type-vs" />
      </binding>
    </element>
    <element id="Encounter.participant.period">
      <path value="Encounter.participant.period" />
      <short value="参与者参与的时间段" />
      <type>
        <code value="Period" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Period" />
      </type>
    </element>
    <element id="Encounter.participant.individual">
      <path value="Encounter.participant.individual" />
      <short value="参与者" />
      <definition value="以引用方式关联参与者" />
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
      </type>
    </element>
    <element id="Encounter.appointment">
      <path value="Encounter.appointment" />
      <short value="预约或者挂号信息" />
      <definition value="引用预约和挂号信息" />
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
      </type>
    </element>
    <element id="Encounter.period">
      <path value="Encounter.period" />
      <short value="就诊时间" />
      <definition value="门诊就诊时间段" />
      <type>
        <code value="Period" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Period" />
      </type>
    </element>
    <element id="Encounter.length">
      <path value="Encounter.length" />
      <max value="0" />
    </element>
    <element id="Encounter.reasonCode">
      <path value="Encounter.reasonCode" />
      <max value="0" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
    </element>
    <element id="Encounter.reasonReference">
      <path value="Encounter.reasonReference" />
      <max value="0" />
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
      </type>
    </element>
    <element id="Encounter.diagnosis">
      <path value="Encounter.diagnosis" />
      <short value="诊断" />
      <definition value="与此相关的诊断列表。" />
    </element>
    <element id="Encounter.diagnosis.condition">
      <path value="Encounter.diagnosis.condition" />
      <short value="与该门诊有关的诊断或程序" />
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
      </type>
    </element>
    <element id="Encounter.diagnosis.use">
      <path value="Encounter.diagnosis.use" />
      <short value="诊断类型" />
      <definition value="该诊断在门诊中的类型" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <binding>
        <strength value="preferred" />
        <description value="诊断类型代码表" />
        <valueSet value="http://ValueSet.hl7fhir.cn/diagnosis-role" />
      </binding>
    </element>
    <element id="Encounter.account">
      <path value="Encounter.account" />
      <max value="0" />
    </element>
    <element id="Encounter.hospitalization">
      <path value="Encounter.hospitalization" />
      <max value="0" />
    </element>
    <element id="Encounter.location">
      <path value="Encounter.location" />
      <short value="门诊诊室" />
      <definition value="病人在此遭遇期间所处门诊诊室。" />
    </element>
    <element id="Encounter.location.status">
      <path value="Encounter.location.status" />
      <short value="患者在该段时段并且在该诊室的状态" />
      <definition value="在指定的时间内，参与者在指定地点的存在状态。如果参与者不在该地点，那么该周期将有一个结束日期/时间。计划|活动|保留|完成" />
    </element>
    <element id="Encounter.location.status.extension">
      <path value="Encounter.location.status.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Encounter.location.status.extension:status">
      <path value="Encounter.location.status.extension" />
      <sliceName value="status" />
      <short value="患者在该段时段并且在该位置的状态" />
      <definition value="在指定的时间内，参与者在指定地点的存在状态。如果参与者不在该地点，那么该周期将有一个结束日期/时间。计划|活动|保留|完成" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://StructureDefinition.hl7fhir.cn/resource-status" />
      </type>
      <binding>
        <strength value="required" />
        <valueSet value="http://ValueSet.hl7fhir.cn/encounter-location-status-vs" />
      </binding>
    </element>
    <element id="Encounter.location.physicalType">
      <path value="Encounter.location.physicalType" />
      <short value="位置的物理形式" />
      <definition value="位置的物理形式，例如建筑物、房间、车辆、道路。病床，这里为房间" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://StructureDefinition.hl7fhir.cn/CodeableConcept" />
      </type>
      <binding>
        <strength value="example" />
        <valueSet value="http://ValueSet.hl7fhir.cn/location-physical-type-vs" />
      </binding>
    </element>
    <element id="Encounter.location.period">
      <path value="Encounter.location.period" />
      <comment value="周期指定时间范围;使用的上下文将说明整个范围是否适用(例如:“该病人是该医院在此时间范围内的住院病人”)或应用该时间范围中的一个值(例如:“在这两次之间给病人”)。&#xD;&#xA;Period不用于持续时间(运行时间的度量)。[时间](datatypes.html #持续时间)。" />
      <type>
        <code value="Period" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Period" />
      </type>
    </element>
    <element id="Encounter.serviceProvider">
      <path value="Encounter.serviceProvider" />
      <short value="门诊科室" />
      <definition value="这次门诊服务的组织。" />
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
      </type>
    </element>
    <element id="Encounter.partOf">
      <path value="Encounter.partOf" />
      <max value="0" />
      <type>
        <code value="Reference" />
        <profile value="http://StructureDefinition.hl7fhir.cn/Reference" />
      </type>
    </element>
  </differential>
</StructureDefinition>