<StructureDefinition xmlns="http://hl7.org/fhir">
    <id value="appointment-ca-core" />
    <url value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/appointment-ca-core" />
    <name value="AppointmentCACore" />
    <title value="Appointment (CA-Core)" />
    <status value="draft" />
    <experimental value="false" />
    <date value="2025-03-06" />
    <publisher value="Canada Health Infoway" />
    <contact>
        <name value="National Standards Release Centre" />
        <telecom>
            <system value="url" />
            <value value="http://www.infoway-inforoute.ca" />
        </telecom>
        <telecom>
            <system value="email" />
            <value value="standards@infoway-inforoute.ca" />
        </telecom>
    </contact>
    <description value="This profile applies constraints to the Appointment resource for CA Core+ to support scheduling interactions in the pan-Canadian context." />
    <jurisdiction>
        <coding>
            <system value="urn:iso:std:iso:3166" />
            <code value="CA" />
        </coding>
    </jurisdiction>
    <copyright value="Copyright &#169; 2025+ Canada Health Infoway. All rights reserved. [Terms of Use and License Agreements](https://ic.infoway-inforoute.ca/en/about/tou). [Privacy Policy](https://www.infoway-inforoute.ca/en/legal/privacy-policy)." />
    <fhirVersion value="4.0.1" />
    <kind value="resource" />
    <abstract value="false" />
    <type value="Appointment" />
    <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Appointment" />
    <derivation value="constraint" />
    <snapshot>
        <element id="Appointment">
            <path value="Appointment" />
            <short value="A booking of a healthcare event among patient(s), practitioner(s), related person(s) and/or device(s) for a specific date/time. This may result in one or more Encounter(s)" />
            <definition value="A booking of a healthcare event among patient(s), practitioner(s), related person(s) and/or device(s) for a specific date/time. This may result in one or more Encounter(s)." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment" />
                <min value="0" />
                <max value="*" />
            </base>
            <constraint>
                <key value="app-2" />
                <severity value="error" />
                <human value="Either start and end are specified, or neither" />
                <expression value="start.exists() = end.exists()" />
                <xpath value="((exists(f:start) and exists(f:end)) or (not(exists(f:start)) and not(exists(f:end))))" />
            </constraint>
            <constraint>
                <key value="app-3" />
                <severity value="error" />
                <human value="Only proposed or cancelled appointments can be missing start/end dates" />
                <expression value="(start.exists() and end.exists()) or (status in (&#39;proposed&#39; | &#39;cancelled&#39; | &#39;waitlist&#39;))" />
                <xpath value="((exists(f:start) and exists(f:end)) or (f:status/@value=&#39;proposed&#39;) or (f:status/@value=&#39;cancelled&#39;) or (f:status/@value=&#39;waitlist&#39;))" />
            </constraint>
            <constraint>
                <key value="app-4" />
                <severity value="error" />
                <human value="Cancelation reason is only used for appointments that have been cancelled, or no-show" />
                <expression value="Appointment.cancelationReason.exists() implies (Appointment.status=&#39;no-show&#39; or Appointment.status=&#39;cancelled&#39;)" />
                <xpath value="not(exists(f:cancellationReason)) or f:status/@value=(&#39;no-show&#39;, &#39;cancelled&#39;)" />
            </constraint>
            <constraint>
                <key value="dom-2" />
                <severity value="error" />
                <human value="If the resource is contained in another resource, it SHALL NOT contain nested Resources" />
                <expression value="contained.contained.empty()" />
                <xpath value="not(parent::f:contained and f:contained)" />
                <source value="http://hl7.org/fhir/StructureDefinition/DomainResource" />
            </constraint>
            <constraint>
                <key value="dom-3" />
                <severity value="error" />
                <human value="If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource" />
                <expression value="contained.where(((&#39;#&#39;+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = &#39;#&#39;).exists() or descendants().where(as(canonical) = &#39;#&#39;).exists() or descendants().where(as(canonical) = &#39;#&#39;).exists()).not()).trace(&#39;unmatched&#39;, id).empty()" />
                <xpath value="not(exists(for $id in f:contained/*/f:id/@value return $contained[not(parent::*/descendant::f:reference/@value=concat(&#39;#&#39;, $contained/*/id/@value) or descendant::f:reference[@value=&#39;#&#39;])]))" />
                <source value="http://hl7.org/fhir/StructureDefinition/DomainResource" />
            </constraint>
            <constraint>
                <key value="dom-4" />
                <severity value="error" />
                <human value="If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated" />
                <expression value="contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()" />
                <xpath value="not(exists(f:contained/*/f:meta/f:versionId)) and not(exists(f:contained/*/f:meta/f:lastUpdated))" />
                <source value="http://hl7.org/fhir/StructureDefinition/DomainResource" />
            </constraint>
            <constraint>
                <key value="dom-5" />
                <severity value="error" />
                <human value="If a resource is contained in another resource, it SHALL NOT have a security label" />
                <expression value="contained.meta.security.empty()" />
                <xpath value="not(exists(f:contained/*/f:meta/f:security))" />
                <source value="http://hl7.org/fhir/StructureDefinition/DomainResource" />
            </constraint>
            <constraint>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice">
                    <valueBoolean value="true" />
                </extension>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation">
                    <valueMarkdown value="When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time." />
                </extension>
                <key value="dom-6" />
                <severity value="warning" />
                <human value="A resource should have narrative for robust management" />
                <expression value="text.`div`.exists()" />
                <xpath value="exists(f:text/h:div)" />
                <source value="http://hl7.org/fhir/StructureDefinition/DomainResource" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="Entity. Role, or Act" />
            </mapping>
            <mapping>
                <identity value="workflow" />
                <map value="Request" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="Act[@moodCode &lt;= &#39;INT&#39;]" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="VEVENT" />
            </mapping>
        </element>
        <element id="Appointment.id">
            <path value="Appointment.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="string" />
                </extension>
                <code value="http://hl7.org/fhirpath/System.String" />
            </type>
            <isModifier value="false" />
            <isSummary value="true" />
        </element>
        <element id="Appointment.meta">
            <path value="Appointment.meta" />
            <short value="Metadata about the resource" />
            <definition value="The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Resource.meta" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="Meta" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
        </element>
        <element id="Appointment.implicitRules">
            <path value="Appointment.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&#39;s narrative along with other profiles, value sets, etc." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Resource.implicitRules" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="uri" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <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&#39;s meaning or interpretation" />
            <isSummary value="true" />
        </element>
        <element id="Appointment.language">
            <path value="Appointment.language" />
            <short value="Language of the resource content" />
            <definition value="The base language in which the resource is written." />
            <comment value="Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies  to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute)." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Resource.language" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="code" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet">
                    <valueCanonical value="http://hl7.org/fhir/ValueSet/all-languages" />
                </extension>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="Language" />
                </extension>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
                    <valueBoolean value="true" />
                </extension>
                <strength value="preferred" />
                <description value="A human language." />
                <valueSet value="http://hl7.org/fhir/ValueSet/languages" />
            </binding>
        </element>
        <element id="Appointment.text">
            <path value="Appointment.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>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="Act.text?" />
            </mapping>
        </element>
        <element id="Appointment.contained">
            <path value="Appointment.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>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Appointment.extension">
            <path value="Appointment.extension" />
            <short value="Additional content defined by implementations" />
            <definition value="May be used to represent additional information that is not part of the basic definition of the 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>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <constraint>
                <key value="ext-1" />
                <severity value="error" />
                <human value="Must have either extensions or value[x], not both" />
                <expression value="extension.exists() != value.exists()" />
                <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
                <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Appointment.modifierExtension">
            <path value="Appointment.modifierExtension" />
            <short value="Extensions that cannot be ignored" />
            <definition value="May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element&#39;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.\n\nModifier 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>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <constraint>
                <key value="ext-1" />
                <severity value="error" />
                <human value="Must have either extensions or value[x], not both" />
                <expression value="extension.exists() != value.exists()" />
                <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
                <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
            </constraint>
            <isModifier value="true" />
            <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Appointment.identifier">
            <path value="Appointment.identifier" />
            <short value="External Ids for this item" />
            <definition value="This records identifiers associated with this appointment concern that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate (e.g. in CDA documents, or in written / printed documentation)." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment.identifier" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Identifier" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.identifier" />
            </mapping>
            <mapping>
                <identity value="w5" />
                <map value="FiveWs.identifier" />
            </mapping>
            <mapping>
                <identity value="v2" />
                <map value="SCH-1, SCH-2, ARQ-1, ARQ-2" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".id" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="UID" />
            </mapping>
        </element>
        <element id="Appointment.status">
            <path value="Appointment.status" />
            <short value="proposed | pending | booked | arrived | fulfilled | cancelled | noshow | entered-in-error | checked-in | waitlist" />
            <definition value="The overall status of the Appointment. Each of the participants has their own participation status which indicates their involvement in the process, however this status indicates the shared status." />
            <comment value="If the Appointment&#39;s status is &quot;cancelled&quot; then all participants are expected to have their calendars released for the appointment period, and as such any Slots that were marked as BUSY can be re-set to FREE.\n\nThis element is labeled as a modifier because the status contains the code entered-in-error that mark the Appointment as not currently valid." />
            <min value="1" />
            <max value="1" />
            <base>
                <path value="Appointment.status" />
                <min value="1" />
                <max value="1" />
            </base>
            <type>
                <code value="code" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="true" />
            <isModifierReason value="This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="AppointmentStatus" />
                </extension>
                <strength value="required" />
                <description value="The free/busy status of an appointment." />
                <valueSet value="http://hl7.org/fhir/ValueSet/appointmentstatus|4.0.1" />
            </binding>
            <mapping>
                <identity value="workflow" />
                <map value="Request.status" />
            </mapping>
            <mapping>
                <identity value="w5" />
                <map value="FiveWs.status" />
            </mapping>
            <mapping>
                <identity value="v2" />
                <map value="SCH-25" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".statusCode" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="STATUS" />
            </mapping>
        </element>
        <element id="Appointment.cancelationReason">
            <path value="Appointment.cancelationReason" />
            <short value="The coded reason for the appointment being cancelled" />
            <definition value="The coded reason for the appointment being cancelled. This is often used in reporting/billing/futher processing to determine if further actions are required, or specific fees apply." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.cancelationReason" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="CodeableConcept" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="cancelation-reason" />
                </extension>
                <strength value="example" />
                <valueSet value="http://hl7.org/fhir/ValueSet/appointment-cancellation-reason" />
            </binding>
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.serviceCategory">
            <path value="Appointment.serviceCategory" />
            <short value="A broad categorization of the service that is to be performed during this appointment" />
            <definition value="A broad categorization of the service that is to be performed during this appointment." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment.serviceCategory" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="CodeableConcept" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="service-category" />
                </extension>
                <strength value="example" />
                <valueSet value="http://hl7.org/fhir/ValueSet/service-category" />
            </binding>
            <mapping>
                <identity value="rim" />
                <map value="n/a, might be inferred from the ServiceDeliveryLocation" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="CATEGORIES" />
            </mapping>
        </element>
        <element id="Appointment.serviceType">
            <path value="Appointment.serviceType" />
            <short value="The specific service that is to be performed during this appointment" />
            <definition value="The specific service that is to be performed during this appointment." />
            <comment value="For a provider to provider appointment the code &quot;FOLLOWUP&quot; may be appropriate, as this is expected to be discussing some patient that was seen in the past." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment.serviceType" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="CodeableConcept" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="service-type" />
                </extension>
                <strength value="example" />
                <valueSet value="http://hl7.org/fhir/ValueSet/service-type" />
            </binding>
            <mapping>
                <identity value="workflow" />
                <map value="Request.code" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="n/a, might be inferred from the ServiceDeliveryLocation" />
            </mapping>
        </element>
        <element id="Appointment.specialty">
            <path value="Appointment.specialty" />
            <short value="The specialty of a practitioner that would be required to perform the service requested in this appointment" />
            <definition value="The specialty of a practitioner that would be required to perform the service requested in this appointment." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment.specialty" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="CodeableConcept" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="specialty" />
                </extension>
                <strength value="preferred" />
                <valueSet value="http://hl7.org/fhir/ValueSet/c80-practice-codes" />
            </binding>
            <mapping>
                <identity value="w5" />
                <map value="FiveWs.class" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".performer.AssignedPerson.code" />
            </mapping>
        </element>
        <element id="Appointment.appointmentType">
            <path value="Appointment.appointmentType" />
            <short value="The style of appointment or patient that has been booked in the slot (not service type)" />
            <definition value="The style of appointment or patient that has been booked in the slot (not service type)." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.appointmentType" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="CodeableConcept" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="appointment-type" />
                </extension>
                <strength value="preferred" />
                <valueSet value="http://terminology.hl7.org/ValueSet/v2-0276" />
            </binding>
            <mapping>
                <identity value="v2" />
                <map value="ARQ-7" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".code" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="CLASSIFICATION" />
            </mapping>
        </element>
        <element id="Appointment.reasonCode">
            <path value="Appointment.reasonCode" />
            <short value="Coded reason this appointment is scheduled" />
            <definition value="The coded reason that this appointment is being scheduled. This is more clinical than administrative." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment.reasonCode" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="CodeableConcept" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="ApptReason" />
                </extension>
                <strength value="preferred" />
                <description value="The Reason for the appointment to take place." />
                <valueSet value="http://hl7.org/fhir/ValueSet/encounter-reason" />
            </binding>
            <mapping>
                <identity value="workflow" />
                <map value="Request.reasonCode" />
            </mapping>
            <mapping>
                <identity value="v2" />
                <map value="AIS-3, SCH-7" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".reasonCode" />
            </mapping>
        </element>
        <element id="Appointment.reasonReference">
            <path value="Appointment.reasonReference" />
            <short value="Reason the appointment is to take place (resource)" />
            <definition value="Reason the appointment has been scheduled to take place, as specified using information from another resource. When the patient arrives and the encounter begins it may be used as the admission diagnosis. The indication will typically be a Condition (with other resources referenced in the evidence.detail), or a Procedure." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment.reasonReference" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Reference" />
                <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/condition-ca-core" />
                <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/procedure-ca-core" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/Observation" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/ImmunizationRecommendation" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.reasonReference" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".inboundRelationship[@typeCode = &#39;RSON&#39;].observation" />
            </mapping>
        </element>
        <element id="Appointment.priority">
            <path value="Appointment.priority" />
            <short value="Used to make informed decisions if needing to re-prioritize" />
            <definition value="The priority of the appointment. Can be used to make informed decisions if needing to re-prioritize appointments. (The iCal Standard specifies 0 as undefined, 1 as highest, 9 as lowest priority)." />
            <comment value="Seeking implementer feedback on this property and how interoperable it is.\n\nUsing an extension to record a CodeableConcept for named values may be tested at a future connectathon." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.priority" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="unsignedInt" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.priority" />
            </mapping>
            <mapping>
                <identity value="w5" />
                <map value="FiveWs.class" />
            </mapping>
            <mapping>
                <identity value="v2" />
                <map value="ARQ-12, SCH-11.6 / TQ1-9" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".priorityCode" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="PRIORITY" />
            </mapping>
        </element>
        <element id="Appointment.description">
            <path value="Appointment.description" />
            <short value="Shown on a subject line in a meeting request, or appointment list" />
            <definition value="The brief description of the appointment as would be shown on a subject line in a meeting request, or appointment list. Detailed or expanded information should be put in the comment field." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.description" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="string" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="v2" />
                <map value="NTE-3" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".text" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="SUMMARY" />
            </mapping>
        </element>
        <element id="Appointment.supportingInformation">
            <path value="Appointment.supportingInformation" />
            <short value="Additional information to support the appointment" />
            <definition value="Additional information to support the appointment provided when making the appointment." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment.supportingInformation" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Reference" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/Resource" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.supportingInfo" />
            </mapping>
            <mapping>
                <identity value="w5" />
                <map value="FiveWs.context" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".inboundRelationship[@typeCode = &#39;SPRT&#39;].observation" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="ATTACH" />
            </mapping>
        </element>
        <element id="Appointment.start">
            <path value="Appointment.start" />
            <short value="When appointment is to take place" />
            <definition value="Date/Time that the appointment is to take place." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.start" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="instant" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.occurrence[x]" />
            </mapping>
            <mapping>
                <identity value="w5" />
                <map value="FiveWs.init" />
            </mapping>
            <mapping>
                <identity value="v2" />
                <map value="ARQ-11.1, SCH-11.4 / TQ1-7" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".effectiveTime.low" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="DTSTART" />
            </mapping>
        </element>
        <element id="Appointment.end">
            <path value="Appointment.end" />
            <short value="When appointment is to conclude" />
            <definition value="Date/Time that the appointment is to conclude." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.end" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="instant" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.occurrence[x]" />
            </mapping>
            <mapping>
                <identity value="w5" />
                <map value="FiveWs.done[x]" />
            </mapping>
            <mapping>
                <identity value="v2" />
                <map value="SCH-11.5 / TQ1-8/ calculated based on the start and the duration which is in ARQ-9" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".effectiveTime.high" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="DTEND" />
            </mapping>
        </element>
        <element id="Appointment.minutesDuration">
            <path value="Appointment.minutesDuration" />
            <short value="Can be less than start/end (e.g. estimate)" />
            <definition value="Number of minutes that the appointment is to take. This can be less than the duration between the start and end times.  For example, where the actual time of appointment is only an estimate or if a 30 minute appointment is being requested, but any time would work.  Also, if there is, for example, a planned 15 minute break in the middle of a long appointment, the duration may be 15 minutes less than the difference between the start and end." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.minutesDuration" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="positiveInt" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.occurrence[x]" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".activityTime[@xsi:type = (&#39;SXPR_TS&#39;, &#39;PIVL_TS&#39;)].width" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="DURATION (e.g. PT15M)" />
            </mapping>
        </element>
        <element id="Appointment.slot">
            <path value="Appointment.slot" />
            <short value="The slots that this appointment is filling" />
            <definition value="The slots from the participants&#39; schedules that will be filled by the appointment." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment.slot" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Reference" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/Slot" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value=".outboundRelationship[@typeCode = &#39;REFR&#39;].act[@classCode = &#39;ACT&#39;][@moodCode = &#39;SLOT&#39;]" />
            </mapping>
        </element>
        <element id="Appointment.created">
            <path value="Appointment.created" />
            <short value="The date that this appointment was initially created" />
            <definition value="The date that this appointment was initially created. This could be different to the meta.lastModified value on the initial entry, as this could have been before the resource was created on the FHIR server, and should remain unchanged over the lifespan of the appointment." />
            <comment value="This property is required for many use cases where the age of an appointment is considered in processing workflows for scheduling and billing of appointments." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.created" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="dateTime" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.authoredOn" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".author.time" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="CREATED" />
            </mapping>
        </element>
        <element id="Appointment.comment">
            <path value="Appointment.comment" />
            <short value="Additional comments" />
            <definition value="Additional comments about the appointment." />
            <comment value="Additional text to aid in facilitating the appointment. For instance, a comment might be, &quot;patient should proceed immediately to infusion room upon arrival&quot;\n\nWhere this is a planned appointment and the start/end dates are not set then this field can be used to provide additional guidance on the details of the appointment request, including any restrictions on when to book it." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.comment" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="string" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.note" />
            </mapping>
            <mapping>
                <identity value="v2" />
                <map value="NTE-3" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".subjectOf.observation[@moodCode = &#39;EVN&#39;][code = &#39;annotation&#39;].value" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="DESCRIPTION (for internal use)" />
            </mapping>
        </element>
        <element id="Appointment.patientInstruction">
            <path value="Appointment.patientInstruction" />
            <short value="Detailed information and instructions for the patient" />
            <definition value="While Appointment.comment contains information for internal use, Appointment.patientInstructions is used to capture patient facing information about the Appointment (e.g. please bring your referral or fast from 8pm night before)." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.patientInstruction" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="string" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="v2" />
                <map value="NTE-3" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".subjectOf.observation[@moodCode = &#39;EVN&#39;][code = &#39;annotation&#39;].value" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="DESCRIPTION (for patient use)" />
            </mapping>
        </element>
        <element id="Appointment.basedOn">
            <path value="Appointment.basedOn" />
            <short value="The service request this appointment is allocated to assess" />
            <definition value="The service request this appointment is allocated to assess (e.g. incoming referral or procedure request)." />
            <alias value="incomingReferral" />
            <min value="1" />
            <max value="1" />
            <base>
                <path value="Appointment.basedOn" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Reference" />
                <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/servicerequest-ca-core" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.basedOn" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".outboundRelationship[@typeCode = &#39;FLFS&#39;].act[@classCode &lt; &#39;ActCareProvisionRequestType&#39;][@moodCode = &#39;RQO&#39;]" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.id">
            <path value="Appointment.basedOn.id" />
            <representation value="xmlAttr" />
            <short value="Unique id for inter-element referencing" />
            <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Element.id" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
                    <valueUrl value="string" />
                </extension>
                <code value="http://hl7.org/fhirpath/System.String" />
            </type>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.extension">
            <path value="Appointment.basedOn.extension" />
            <slicing>
                <discriminator>
                    <type value="value" />
                    <path value="url" />
                </discriminator>
                <description value="Extensions are always sliced by (at least) url" />
                <rules value="open" />
            </slicing>
            <short value="Additional content defined by implementations" />
            <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
            <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
            <alias value="extensions" />
            <alias value="user content" />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Element.extension" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Extension" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <constraint>
                <key value="ext-1" />
                <severity value="error" />
                <human value="Must have either extensions or value[x], not both" />
                <expression value="extension.exists() != value.exists()" />
                <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
                <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.reference">
            <path value="Appointment.basedOn.reference" />
            <short value="Literal reference, Relative, internal or absolute URL" />
            <definition value="A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with &#39;#&#39;) refer to contained resources." />
            <comment value="Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries.   Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure &quot;/[type]/[id]&quot; then it should be assumed that the reference is to a FHIR RESTful server." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Reference.reference" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="string" />
            </type>
            <condition value="ref-1" />
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.type">
            <path value="Appointment.basedOn.type" />
            <short value="Type the reference refers to (e.g. &quot;Patient&quot;)" />
            <definition value="The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.\n\nThe type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. &quot;Patient&quot; is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources)." />
            <comment value="This element is used to indicate the type of  the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Reference.type" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="uri" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="FHIRResourceTypeExt" />
                </extension>
                <strength value="extensible" />
                <description value="Aa resource (or, for logical models, the URI of the logical model)." />
                <valueSet value="http://hl7.org/fhir/ValueSet/resource-types" />
            </binding>
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.identifier">
            <path value="Appointment.basedOn.identifier" />
            <short value="Logical reference, when literal reference is not known" />
            <definition value="An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference." />
            <comment value="When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. \n\nWhen both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference\n\nApplications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.\n\nReference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference.  For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport).  One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any)." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Reference.identifier" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="Identifier" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="rim" />
                <map value=".identifier" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.identifier.id">
            <path value="Appointment.basedOn.identifier.id" />
            <representation value="xmlAttr" />
            <short value="Unique id for inter-element referencing" />
            <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Element.id" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
                    <valueUrl value="string" />
                </extension>
                <code value="http://hl7.org/fhirpath/System.String" />
            </type>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.identifier.extension">
            <path value="Appointment.basedOn.identifier.extension" />
            <slicing>
                <discriminator>
                    <type value="value" />
                    <path value="url" />
                </discriminator>
                <description value="Extensions are always sliced by (at least) url" />
                <rules value="open" />
            </slicing>
            <short value="Additional content defined by implementations" />
            <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
            <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
            <alias value="extensions" />
            <alias value="user content" />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Element.extension" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Extension" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <constraint>
                <key value="ext-1" />
                <severity value="error" />
                <human value="Must have either extensions or value[x], not both" />
                <expression value="extension.exists() != value.exists()" />
                <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
                <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.identifier.use">
            <path value="Appointment.basedOn.identifier.use" />
            <short value="usual | official | temp | secondary | old (If known)" />
            <definition value="The purpose of this identifier." />
            <comment value="Applications can assume that an identifier is permanent unless it explicitly says that it is temporary." />
            <requirements value="Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Identifier.use" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="code" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="true" />
            <isModifierReason value="This is labeled as &quot;Is Modifier&quot; because applications should not mistake a temporary id for a permanent one." />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="IdentifierUse" />
                </extension>
                <strength value="required" />
                <description value="Identifies the purpose for this identifier, if known ." />
                <valueSet value="http://hl7.org/fhir/ValueSet/identifier-use|4.0.1" />
            </binding>
            <mapping>
                <identity value="v2" />
                <map value="N/A" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="Role.code or implied by context" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.identifier.type">
            <path value="Appointment.basedOn.identifier.type" />
            <short value="Description of identifier" />
            <definition value="A coded type for the identifier that can be used to determine which identifier to use for a specific purpose." />
            <comment value="This element deals only with general categories of identifiers.  It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage.   Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type." />
            <requirements value="Allows users to make use of identifiers when the identifier system is not known." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Identifier.type" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="CodeableConcept" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="IdentifierType" />
                </extension>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
                    <valueBoolean value="true" />
                </extension>
                <strength value="extensible" />
                <description value="A coded type for an identifier that can be used to determine which identifier to use for a specific purpose." />
                <valueSet value="http://hl7.org/fhir/ValueSet/identifier-type" />
            </binding>
            <mapping>
                <identity value="v2" />
                <map value="CX.5" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="Role.code or implied by context" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.identifier.system">
            <path value="Appointment.basedOn.identifier.system" />
            <short value="The namespace for the identifier value" />
            <definition value="Establishes the namespace for the value - that is, a URL that describes a set values that are unique." />
            <comment value="Identifier.system is always case sensitive." />
            <requirements value="There are many sets  of identifiers.  To perform matching of two identifiers, we need to know what set we&#39;re dealing with. The system identifies a particular set of unique identifiers." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Identifier.system" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="uri" />
            </type>
            <example>
                <label value="General" />
                <valueUri value="http://www.acme.com/identifiers/patient" />
            </example>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="v2" />
                <map value="CX.4 / EI-2-4" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="II.root or Role.id.root" />
            </mapping>
            <mapping>
                <identity value="servd" />
                <map value="./IdentifierType" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.identifier.value">
            <path value="Appointment.basedOn.identifier.value" />
            <short value="The value that is unique" />
            <definition value="The portion of the identifier typically relevant to the user and which is unique within the context of the system." />
            <comment value="If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986.  The value&#39;s primary purpose is computational mapping.  As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.)  A value formatted for human display can be conveyed using the [Rendered Value extension](extension-rendered-value.html). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Identifier.value" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="string" />
            </type>
            <example>
                <label value="General" />
                <valueString value="123456" />
            </example>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="v2" />
                <map value="CX.1 / EI.1" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)" />
            </mapping>
            <mapping>
                <identity value="servd" />
                <map value="./Value" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.identifier.period">
            <path value="Appointment.basedOn.identifier.period" />
            <short value="Time period when id is/was valid for use" />
            <definition value="Time period during which identifier is/was valid for use." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Identifier.period" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="Period" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="v2" />
                <map value="CX.7 + CX.8" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="Role.effectiveTime or implied by context" />
            </mapping>
            <mapping>
                <identity value="servd" />
                <map value="./StartDate and ./EndDate" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.identifier.assigner">
            <path value="Appointment.basedOn.identifier.assigner" />
            <short value="Organization that issued id (may be just text)" />
            <definition value="Organization that issued/manages the identifier." />
            <comment value="The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Identifier.assigner" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="Reference" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="v2" />
                <map value="CX.4 / (CX.4,CX.9,CX.10)" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="II.assigningAuthorityName but note that this is an improper use by the definition of the field.  Also Role.scoper" />
            </mapping>
            <mapping>
                <identity value="servd" />
                <map value="./IdentifierIssuingAuthority" />
            </mapping>
        </element>
        <element id="Appointment.basedOn.display">
            <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
                <valueBoolean value="true" />
            </extension>
            <path value="Appointment.basedOn.display" />
            <short value="Text alternative for the resource" />
            <definition value="Plain text narrative that identifies the resource in addition to the resource reference." />
            <comment value="This is generally not the same as the Resource.text of the referenced resource.  The purpose is to identify what&#39;s being referenced, not to fully describe it." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Reference.display" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="string" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Appointment.participant">
            <path value="Appointment.participant" />
            <short value="Participants involved in appointment" />
            <definition value="List of participants involved in the appointment." />
            <min value="1" />
            <max value="*" />
            <base>
                <path value="Appointment.participant" />
                <min value="1" />
                <max value="*" />
            </base>
            <type>
                <code value="BackboneElement" />
            </type>
            <constraint>
                <key value="app-1" />
                <severity value="error" />
                <human value="Either the type or actor on the participant SHALL be specified" />
                <expression value="type.exists() or actor.exists()" />
                <xpath value="(exists(f:type) or exists(f:actor))" />
            </constraint>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.performer, Request.subject" />
            </mapping>
            <mapping>
                <identity value="v2" />
                <map value="PID, AIP, AIG, AIL" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="performer | reusableDevice | subject | location" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="ATTENDEE component to be created" />
            </mapping>
        </element>
        <element id="Appointment.participant.id">
            <path value="Appointment.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>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.participant.extension">
            <path value="Appointment.participant.extension" />
            <short value="Additional content defined by implementations" />
            <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
            <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
            <alias value="extensions" />
            <alias value="user content" />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Element.extension" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Extension" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <constraint>
                <key value="ext-1" />
                <severity value="error" />
                <human value="Must have either extensions or value[x], not both" />
                <expression value="extension.exists() != value.exists()" />
                <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
                <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.participant.modifierExtension">
            <path value="Appointment.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&#39;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.\n\nModifier 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>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <constraint>
                <key value="ext-1" />
                <severity value="error" />
                <human value="Must have either extensions or value[x], not both" />
                <expression value="extension.exists() != value.exists()" />
                <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
                <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
            </constraint>
            <isModifier value="true" />
            <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them" />
            <isSummary value="true" />
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Appointment.participant.type">
            <path value="Appointment.participant.type" />
            <short value="Role of participant in the appointment" />
            <definition value="Role of participant in the appointment." />
            <comment value="The role of the participant can be used to declare what the actor will be doing in the scope of this appointment.\n\nIf the actor is not specified, then it is expected that the actor will be filled in at a later stage of planning.\n\nThis value SHALL be the same when creating an AppointmentResponse so that they can be matched, and subsequently update the Appointment." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment.participant.type" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="CodeableConcept" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <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://hl7.org/fhir/ValueSet/encounter-participant-type" />
            </binding>
            <mapping>
                <identity value="v2" />
                <map value="AIP-4, AIG-4" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="(performer | reusableDevice | subject | location).@typeCode" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor">
            <path value="Appointment.participant.actor" />
            <short value="Person, Location/HealthcareService or Device" />
            <definition value="A Person, Location/HealthcareService or Device that is participating in the appointment." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.participant.actor" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="Reference" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/Practitioner" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/PractitionerRole" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/RelatedPerson" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/Device" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/HealthcareService" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/Location" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="w5" />
                <map value="FiveWs.who" />
            </mapping>
            <mapping>
                <identity value="v2" />
                <map value="PID-3-Patient ID List | AIL-3 | AIG-3 | AIP-3" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="performer.person | reusableDevice.manufacturedDevice | subject.patient | location.serviceDeliveryLocation" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="ATTENDEE: (Need to provide the common name CN and also the MAILTO properties from the practitioner resource) where the participant type is not &quot;information-only&quot;" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.id">
            <path value="Appointment.participant.actor.id" />
            <representation value="xmlAttr" />
            <short value="Unique id for inter-element referencing" />
            <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Element.id" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
                    <valueUrl value="string" />
                </extension>
                <code value="http://hl7.org/fhirpath/System.String" />
            </type>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.extension">
            <path value="Appointment.participant.actor.extension" />
            <slicing>
                <discriminator>
                    <type value="value" />
                    <path value="url" />
                </discriminator>
                <description value="Extensions are always sliced by (at least) url" />
                <rules value="open" />
            </slicing>
            <short value="Additional content defined by implementations" />
            <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
            <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
            <alias value="extensions" />
            <alias value="user content" />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Element.extension" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Extension" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <constraint>
                <key value="ext-1" />
                <severity value="error" />
                <human value="Must have either extensions or value[x], not both" />
                <expression value="extension.exists() != value.exists()" />
                <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
                <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.reference">
            <path value="Appointment.participant.actor.reference" />
            <short value="Literal reference, Relative, internal or absolute URL" />
            <definition value="A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with &#39;#&#39;) refer to contained resources." />
            <comment value="Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries.   Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure &quot;/[type]/[id]&quot; then it should be assumed that the reference is to a FHIR RESTful server." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Reference.reference" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="string" />
            </type>
            <condition value="ref-1" />
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.type">
            <path value="Appointment.participant.actor.type" />
            <short value="Type the reference refers to (e.g. &quot;Patient&quot;)" />
            <definition value="The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.\n\nThe type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. &quot;Patient&quot; is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources)." />
            <comment value="This element is used to indicate the type of  the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Reference.type" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="uri" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="FHIRResourceTypeExt" />
                </extension>
                <strength value="extensible" />
                <description value="Aa resource (or, for logical models, the URI of the logical model)." />
                <valueSet value="http://hl7.org/fhir/ValueSet/resource-types" />
            </binding>
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.identifier">
            <path value="Appointment.participant.actor.identifier" />
            <short value="Logical reference, when literal reference is not known" />
            <definition value="An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference." />
            <comment value="When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. \n\nWhen both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference\n\nApplications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.\n\nReference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference.  For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport).  One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any)." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Reference.identifier" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="Identifier" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="rim" />
                <map value=".identifier" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.identifier.id">
            <path value="Appointment.participant.actor.identifier.id" />
            <representation value="xmlAttr" />
            <short value="Unique id for inter-element referencing" />
            <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Element.id" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
                    <valueUrl value="string" />
                </extension>
                <code value="http://hl7.org/fhirpath/System.String" />
            </type>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.identifier.extension">
            <path value="Appointment.participant.actor.identifier.extension" />
            <slicing>
                <discriminator>
                    <type value="value" />
                    <path value="url" />
                </discriminator>
                <description value="Extensions are always sliced by (at least) url" />
                <rules value="open" />
            </slicing>
            <short value="Additional content defined by implementations" />
            <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
            <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
            <alias value="extensions" />
            <alias value="user content" />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Element.extension" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Extension" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <constraint>
                <key value="ext-1" />
                <severity value="error" />
                <human value="Must have either extensions or value[x], not both" />
                <expression value="extension.exists() != value.exists()" />
                <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
                <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.identifier.use">
            <path value="Appointment.participant.actor.identifier.use" />
            <short value="usual | official | temp | secondary | old (If known)" />
            <definition value="The purpose of this identifier." />
            <comment value="Applications can assume that an identifier is permanent unless it explicitly says that it is temporary." />
            <requirements value="Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Identifier.use" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="code" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="true" />
            <isModifierReason value="This is labeled as &quot;Is Modifier&quot; because applications should not mistake a temporary id for a permanent one." />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="IdentifierUse" />
                </extension>
                <strength value="required" />
                <description value="Identifies the purpose for this identifier, if known ." />
                <valueSet value="http://hl7.org/fhir/ValueSet/identifier-use|4.0.1" />
            </binding>
            <mapping>
                <identity value="v2" />
                <map value="N/A" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="Role.code or implied by context" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.identifier.type">
            <path value="Appointment.participant.actor.identifier.type" />
            <short value="Description of identifier" />
            <definition value="A coded type for the identifier that can be used to determine which identifier to use for a specific purpose." />
            <comment value="This element deals only with general categories of identifiers.  It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage.   Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type." />
            <requirements value="Allows users to make use of identifiers when the identifier system is not known." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Identifier.type" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="CodeableConcept" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="IdentifierType" />
                </extension>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
                    <valueBoolean value="true" />
                </extension>
                <strength value="extensible" />
                <description value="A coded type for an identifier that can be used to determine which identifier to use for a specific purpose." />
                <valueSet value="http://hl7.org/fhir/ValueSet/identifier-type" />
            </binding>
            <mapping>
                <identity value="v2" />
                <map value="CX.5" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="Role.code or implied by context" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.identifier.system">
            <path value="Appointment.participant.actor.identifier.system" />
            <short value="The namespace for the identifier value" />
            <definition value="Establishes the namespace for the value - that is, a URL that describes a set values that are unique." />
            <comment value="Identifier.system is always case sensitive." />
            <requirements value="There are many sets  of identifiers.  To perform matching of two identifiers, we need to know what set we&#39;re dealing with. The system identifies a particular set of unique identifiers." />
            <min value="1" />
            <max value="1" />
            <base>
                <path value="Identifier.system" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="uri" />
            </type>
            <example>
                <label value="General" />
                <valueUri value="http://www.acme.com/identifiers/patient" />
            </example>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="v2" />
                <map value="CX.4 / EI-2-4" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="II.root or Role.id.root" />
            </mapping>
            <mapping>
                <identity value="servd" />
                <map value="./IdentifierType" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.identifier.value">
            <path value="Appointment.participant.actor.identifier.value" />
            <short value="The value that is unique" />
            <definition value="The portion of the identifier typically relevant to the user and which is unique within the context of the system." />
            <comment value="If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986.  The value&#39;s primary purpose is computational mapping.  As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.)  A value formatted for human display can be conveyed using the [Rendered Value extension](extension-rendered-value.html). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe." />
            <min value="1" />
            <max value="1" />
            <base>
                <path value="Identifier.value" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="string" />
            </type>
            <example>
                <label value="General" />
                <valueString value="123456" />
            </example>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <mustSupport value="true" />
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="v2" />
                <map value="CX.1 / EI.1" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)" />
            </mapping>
            <mapping>
                <identity value="servd" />
                <map value="./Value" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.identifier.period">
            <path value="Appointment.participant.actor.identifier.period" />
            <short value="Time period when id is/was valid for use" />
            <definition value="Time period during which identifier is/was valid for use." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Identifier.period" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="Period" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="v2" />
                <map value="CX.7 + CX.8" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="Role.effectiveTime or implied by context" />
            </mapping>
            <mapping>
                <identity value="servd" />
                <map value="./StartDate and ./EndDate" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.identifier.assigner">
            <path value="Appointment.participant.actor.identifier.assigner" />
            <short value="Organization that issued id (may be just text)" />
            <definition value="Organization that issued/manages the identifier." />
            <comment value="The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Identifier.assigner" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="Reference" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="v2" />
                <map value="CX.4 / (CX.4,CX.9,CX.10)" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="II.assigningAuthorityName but note that this is an improper use by the definition of the field.  Also Role.scoper" />
            </mapping>
            <mapping>
                <identity value="servd" />
                <map value="./IdentifierIssuingAuthority" />
            </mapping>
        </element>
        <element id="Appointment.participant.actor.display">
            <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
                <valueBoolean value="true" />
            </extension>
            <path value="Appointment.participant.actor.display" />
            <short value="Text alternative for the resource" />
            <definition value="Plain text narrative that identifies the resource in addition to the resource reference." />
            <comment value="This is generally not the same as the Resource.text of the referenced resource.  The purpose is to identify what&#39;s being referenced, not to fully describe it." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Reference.display" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="string" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Appointment.participant.required">
            <path value="Appointment.participant.required" />
            <short value="required | optional | information-only" />
            <definition value="Whether this participant is required to be present at the meeting. This covers a use-case where two doctors need to meet to discuss the results for a specific patient, and the patient is not required to be present." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.participant.required" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="code" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="ParticipantRequired" />
                </extension>
                <strength value="required" />
                <description value="Is the Participant required to attend the appointment." />
                <valueSet value="http://hl7.org/fhir/ValueSet/participantrequired|4.0.1" />
            </binding>
            <mapping>
                <identity value="rim" />
                <map value="(performer | reusableDevice | subject | location).@performInd" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="ROLE=REQ-PARTICIPANT (roleparam)" />
            </mapping>
        </element>
        <element id="Appointment.participant.status">
            <path value="Appointment.participant.status" />
            <short value="accepted | declined | tentative | needs-action" />
            <definition value="Participation status of the actor." />
            <min value="1" />
            <max value="1" />
            <base>
                <path value="Appointment.participant.status" />
                <min value="1" />
                <max value="1" />
            </base>
            <type>
                <code value="code" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="true" />
            <binding>
                <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
                    <valueString value="ParticipationStatus" />
                </extension>
                <strength value="required" />
                <description value="The Participation status of an appointment." />
                <valueSet value="http://hl7.org/fhir/ValueSet/participationstatus|4.0.1" />
            </binding>
            <mapping>
                <identity value="v2" />
                <map value="AIP-12, AIG-14" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="(performer | reusableDevice | subject | location).statusCode" />
            </mapping>
            <mapping>
                <identity value="ical" />
                <map value="ATTENDEE;CN=&quot;John Doe&quot;;RSVP=TRUE:mailto:john@doe.com (rsvpparam | partstatparam)" />
            </mapping>
        </element>
        <element id="Appointment.participant.period">
            <path value="Appointment.participant.period" />
            <short value="Participation period of the actor" />
            <definition value="Participation period of the actor." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Appointment.participant.period" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="Period" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Appointment.requestedPeriod">
            <path value="Appointment.requestedPeriod" />
            <short value="Potential date/time interval(s) requested to allocate the appointment within" />
            <definition value="A set of date ranges (potentially including times) that the appointment is preferred to be scheduled within.\n\nThe duration (usually in minutes) could also be provided to indicate the length of the appointment to fill and populate the start/end times for the actual allocated time. However, in other situations the duration may be calculated by the scheduling system." />
            <comment value="This does not introduce a capacity for recurring appointments." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Appointment.requestedPeriod" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Period" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="workflow" />
                <map value="Request.occurrence[x]" />
            </mapping>
            <mapping>
                <identity value="v2" />
                <map value="ARQ-11" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value=".activityTime[@xsi:type = (&#39;SXPR_TS&#39;, &#39;PIVL_TS&#39;)]" />
            </mapping>
        </element>
    </snapshot>
    <differential>
        <element id="Appointment.text">
            <path value="Appointment.text" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.status">
            <path value="Appointment.status" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.reasonReference">
            <path value="Appointment.reasonReference" />
            <type>
                <code value="Reference" />
                <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/condition-ca-core" />
                <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/procedure-ca-core" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/Observation" />
                <targetProfile value="http://hl7.org/fhir/StructureDefinition/ImmunizationRecommendation" />
            </type>
        </element>
        <element id="Appointment.description">
            <path value="Appointment.description" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.start">
            <path value="Appointment.start" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.created">
            <path value="Appointment.created" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.comment">
            <path value="Appointment.comment" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.basedOn">
            <path value="Appointment.basedOn" />
            <min value="1" />
            <max value="1" />
            <type>
                <code value="Reference" />
                <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/servicerequest-ca-core" />
            </type>
            <mustSupport value="true" />
        </element>
        <element id="Appointment.basedOn.reference">
            <path value="Appointment.basedOn.reference" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.basedOn.identifier">
            <path value="Appointment.basedOn.identifier" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.basedOn.identifier.system">
            <path value="Appointment.basedOn.identifier.system" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.basedOn.identifier.value">
            <path value="Appointment.basedOn.identifier.value" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.participant.type">
            <path value="Appointment.participant.type" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.participant.actor">
            <path value="Appointment.participant.actor" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.participant.actor.reference">
            <path value="Appointment.participant.actor.reference" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.participant.actor.identifier">
            <path value="Appointment.participant.actor.identifier" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.participant.actor.identifier.system">
            <path value="Appointment.participant.actor.identifier.system" />
            <min value="1" />
            <mustSupport value="true" />
        </element>
        <element id="Appointment.participant.actor.identifier.value">
            <path value="Appointment.participant.actor.identifier.value" />
            <min value="1" />
            <mustSupport value="true" />
        </element>
    </differential>
</StructureDefinition>