Quality Measure Implementation Guide (STU4)
4.0.0 - STU4
Quality Measure Implementation Guide (STU4)
4.0.0 - STU4
This page is part of the Quality Measure STU2 for FHIR R4 Implementation Guide (v4.0.0: STU4 (v4.0.0)) based on FHIR R4. This is the current published version. For a full list of available versions, see the Directory of published versions 
| Draft as of 2019-06-06 |
XML representation of the publishable-valueset-cqfm resource profile.
<StructureDefinition xmlns="http://hl7.org/fhir">
<id value="publishable-valueset-cqfm"/>
<text>
<status value="extensions"/>
<div xmlns="http://www.w3.org/1999/xhtml">Placeholder</div>
</text>
<url
value="http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/publishable-valueset-cqfm"/>
<version value="4.0.0"/>
<name value="CQFMPublishableValueSet"/>
<title value="CQFM Publishable ValueSet"/>
<status value="draft"/>
<experimental value="false"/>
<date value="2019-06-06"/>
<publisher value="Clinical Quality Information WG"/>
<contact>
<telecom>
<system value="url"/>
<value value="http://www.hl7.org/Special/committees/cqi"/>
</telecom>
</contact>
<description
value="Defines the expectations for publishable value sets used in quality measurement specifications"/>
<jurisdiction>
<coding>
<system value="urn:iso:std:iso:3166"/>
<code value="US"/>
</coding>
</jurisdiction>
<fhirVersion value="4.0.1"/>
<mapping>
<identity value="rim"/>
<uri value="http://hl7.org/v3"/>
<name value="RIM Mapping"/>
</mapping>
<mapping>
<identity value="workflow"/>
<uri value="http://hl7.org/fhir/workflow"/>
<name value="Workflow Pattern"/>
</mapping>
<mapping>
<identity value="w5"/>
<uri value="http://hl7.org/fhir/fivews"/>
<name value="FiveWs Pattern Mapping"/>
</mapping>
<mapping>
<identity value="objimpl"/>
<uri value="http://hl7.org/fhir/object-implementation"/>
<name value="Object Implementation Information"/>
</mapping>
<kind value="resource"/>
<abstract value="false"/>
<type value="ValueSet"/>
<baseDefinition
value="http://hl7.org/fhir/StructureDefinition/shareablevalueset"/>
<derivation value="constraint"/>
<snapshot>
<element id="ValueSet">
<path value="ValueSet"/>
<short value="A set of codes drawn from one or more code systems"/>
<definition
value="A ValueSet resource instance specifies a set of codes drawn from one or more code systems, intended for use in a particular context. Value sets link between [CodeSystem](http://hl7.org/fhir/codesystem.html) definitions and their use in [coded elements](http://hl7.org/fhir/terminologies.html)."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet"/>
<min value="0"/>
<max value="*"/>
</base>
<constraint>
<key value="dom-2"/>
<severity value="error"/>
<human
value="If the resource is contained in another resource, it SHALL NOT contain nested Resources"/>
<expression value="contained.contained.empty()"/>
<xpath value="not(parent::f:contained and f:contained)"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="dom-3"/>
<severity value="error"/>
<human
value="If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource"/>
<expression
value="contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()"/>
<xpath
value="not(exists(for $id in f:contained/*/f:id/@value return $contained[not(parent::*/descendant::f:reference/@value=concat('#', $contained/*/id/@value) or descendant::f:reference[@value='#'])]))"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="dom-4"/>
<severity value="error"/>
<human
value="If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated"/>
<expression
value="contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()"/>
<xpath
value="not(exists(f:contained/*/f:meta/f:versionId)) and not(exists(f:contained/*/f:meta/f:lastUpdated))"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="dom-5"/>
<severity value="error"/>
<human
value="If a resource is contained in another resource, it SHALL NOT have a security label"/>
<expression value="contained.meta.security.empty()"/>
<xpath value="not(exists(f:contained/*/f:meta/f:security))"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice">
<valueBoolean value="true"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation">
<valueMarkdown
value="When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time."/>
</extension>
<key value="dom-6"/>
<severity value="warning"/>
<human
value="A resource should have narrative for robust management"/>
<expression value="text.`div`.exists()"/>
<xpath value="exists(f:text/h:div)"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="vsd-0"/>
<severity value="warning"/>
<human
value="Name should be usable as an identifier for the module by machine processing applications such as code generation"/>
<expression value="name.matches('[A-Z]([A-Za-z0-9_]){0,254}')"/>
<xpath
value="not(exists(f:name/@value)) or matches(f:name/@value, '[A-Z]([A-Za-z0-9_]){0,254}')"/>
<source value="http://hl7.org/fhir/StructureDefinition/ValueSet"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="Entity. Role, or Act"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.id">
<path value="ValueSet.id"/>
<short value="Logical id of this artifact"/>
<definition
value="The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes."/>
<comment
value="The only time that a resource does not have an id is when it is being submitted to the server using a create operation."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Resource.id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
<valueUrl value="id"/>
</extension>
<code value="http://hl7.org/fhirpath/System.String"/>
</type>
<isModifier value="false"/>
<isSummary value="true"/>
</element>
<element id="ValueSet.meta">
<path value="ValueSet.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() > 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="ValueSet.implicitRules">
<path value="ValueSet.implicitRules"/>
<short value="A set of rules under which this content was created"/>
<definition
value="A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc."/>
<comment
value="Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Resource.implicitRules"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="uri"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation"/>
<isSummary value="true"/>
</element>
<element id="ValueSet.language">
<path value="ValueSet.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() > 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="ValueSet.text">
<path value="ValueSet.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 "clinically safe" 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 "text blob" 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() > 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="Act.text?"/>
</mapping>
</element>
<element id="ValueSet.contained">
<path value="ValueSet.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="ValueSet.extension">
<path value="ValueSet.extension"/>
<slicing>
<discriminator>
<type value="value"/>
<path value="url"/>
</discriminator>
<ordered value="false"/>
<rules value="open"/>
</slicing>
<short value="Extension"/>
<definition value="An Extension"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.extension:approvalDate">
<path value="ValueSet.extension"/>
<sliceName value="approvalDate"/>
<short value="When resource approved by publisher"/>
<definition
value="The date on which the asset content was approved by the publisher. Approval happens once when the content is officially approved for usage."/>
<comment
value="The date may be more recent than the approval date because of minor changes / editorial corrections."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/resource-approvalDate"/>
</type>
<condition value="ele-1"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mustSupport value="true"/>
<isModifier value="false"/>
</element>
<element id="ValueSet.extension:effectiveDate">
<path value="ValueSet.extension"/>
<sliceName value="effectiveDate"/>
<short
value="When the value set version becomes Active and is available for use"/>
<definition
value="This is the first date-time when the value set version becomes active, so this value is present on Inactive value set versions as well. The start Date_time is expected to be as of 0001 UTC of the Effective Date."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-effectiveDate"/>
</type>
<condition value="ele-1"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mustSupport value="true"/>
<isModifier value="false"/>
</element>
<element id="ValueSet.extension:expirationDate">
<path value="ValueSet.extension"/>
<sliceName value="expirationDate"/>
<short value="When the value set version should no longer be used"/>
<definition
value="The date when the value set version is no longer expected to be used to create new content. This is the first date-time when the value set version becomes Inactive, so this value SHALL present on all Inactive value set versions. The start Date_time is expected to be as of 0001 UTC of the Expiration Date."/>
<comment
value="Upon reaching the Expiration Date, the value set Activity Status should be consdiered as inactive. An Inactive value set version may no longer be used to create new content, but it may be used to evaluate content created prior to the Expiration Date."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-expirationDate"/>
</type>
<condition value="ele-1"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mustSupport value="true"/>
<isModifier value="false"/>
</element>
<element id="ValueSet.extension:lastReviewDate">
<path value="ValueSet.extension"/>
<sliceName value="lastReviewDate"/>
<short value="Last review date for the resource"/>
<definition
value="The date on which the asset content was last reviewed. Review happens periodically after that, but doesn't change the original approval date."/>
<comment
value="If specified, this is usually after the approval date."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/resource-lastReviewDate"/>
</type>
<condition value="ele-1"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mustSupport value="true"/>
<isModifier value="false"/>
</element>
<element id="ValueSet.extension:author">
<path value="ValueSet.extension"/>
<sliceName value="author"/>
<short
value="Entity/entities that create and may modify the Value Set"/>
<definition
value="The entity or set of entities that create and may modify the Value Set Definition content. The name of a group or an individual, along with contact details."/>
<comment
value="This can be any combination of groups or individuals. When known and actively maintained, this should be populated. The information included about the Author may include contact information."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-author"/>
</type>
<condition value="ele-1"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
</element>
<element id="ValueSet.extension:keyWord">
<path value="ValueSet.extension"/>
<sliceName value="keyWord"/>
<short value="Descriptors and key terms for search"/>
<definition
value="Word or words used in an information retrieval system to indicate the content of the value set."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-keyWord"/>
</type>
<condition value="ele-1"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mustSupport value="true"/>
<isModifier value="false"/>
</element>
<element id="ValueSet.extension:sourceReference">
<path value="ValueSet.extension"/>
<sliceName value="sourceReference"/>
<short value="Where did this content come from"/>
<definition
value="This text is intended to act as a citation to work done elsewhere that is not part of the current stewarding process where the referenced source is in some way a basis of the current value set definition."/>
<comment
value="This is not intended to be a direct link to another value set. It is only intended to support a link or textual description that indicates related material for the value set."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-sourceReference"/>
</type>
<condition value="ele-1"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
</element>
<element id="ValueSet.extension:usage">
<path value="ValueSet.extension"/>
<sliceName value="usage"/>
<short value="Who has used and how?"/>
<definition
value="Consumers of the value set and the implementations, projects or standards that the author has utilized the value set in."/>
<comment
value="This is likely to be a point-in-time view and should not be considered an authoritative listing of all uses of the value set."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-usage"/>
</type>
<condition value="ele-1"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
</element>
<element id="ValueSet.modifierExtension">
<path value="ValueSet.modifierExtension"/>
<short value="Extensions that cannot be ignored"/>
<definition
value="May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
<requirements
value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.url">
<path value="ValueSet.url"/>
<short
value="Canonical identifier for this value set, represented as a URI (globally unique)"/>
<definition
value="An absolute URI that is used to identify this value set when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which at which an authoritative instance of this value set is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the value set is stored on different servers."/>
<comment
value="Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred. Multiple instances may share the same URL if they have a distinct version.
The determination of when to create a new version of a resource (same url, new version) vs. defining a new artifact is up to the author. Considerations for making this decision are found in [Technical and Business Versions](http://hl7.org/fhir/resource.html#versions).
In some cases, the resource can no longer be found at the stated url, but the url itself cannot change. Implementations can use the [meta.source](http://hl7.org/fhir/resource.html#meta) element to indicate where the current master source of the resource can be found."/>
<requirements
value="Allows the value set to be referenced by a single globally unique identifier."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.url"/>
<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() > 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="Definition.url"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.identifier"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.identifier">
<path value="ValueSet.identifier"/>
<short
value="Additional identifier for the value set (business identifier)"/>
<definition
value="A formal identifier that is used to identify this value set when it is represented in other formats, or referenced in a specification, model, design or an instance."/>
<comment
value="Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this value set outside of FHIR, where it is not possible to use the logical URI."/>
<requirements
value="Allows externally provided and/or usable business identifiers to be easily associated with the module."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.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() > 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="Definition.identifier"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.identifier"/>
</mapping>
<mapping>
<identity value="objimpl"/>
<map value="no-gen-base"/>
</mapping>
</element>
<element id="ValueSet.version">
<path value="ValueSet.version"/>
<short value="Business version of the value set"/>
<definition
value="The identifier that is used to identify this version of the value set when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the value set author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence."/>
<comment
value="There may be different value set instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a reference to a particular business version of the value set with the format [url]|[version]."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.version"/>
<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() > 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="Definition.version"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.version"/>
</mapping>
</element>
<element id="ValueSet.name">
<path value="ValueSet.name"/>
<short value="Name for this value set (computer friendly)"/>
<definition
value="A natural language name identifying the value set. This name should be usable as an identifier for the module by machine processing applications such as code generation."/>
<comment
value="The name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly.A name should be provided unless the value set is a contained resource (e.g. an anonymous value set in a profile). Most registries will require a name."/>
<requirements value="Support human navigation and code generation."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.name"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<condition value="inv-0"/>
<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() > 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="ValueSet.title">
<path value="ValueSet.title"/>
<short value="Name for this value set (human friendly)"/>
<definition
value="A short, descriptive, user-friendly title for the value set."/>
<comment
value="This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.title"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="workflow"/>
<map value="Definition.title"/>
</mapping>
</element>
<element id="ValueSet.status">
<path value="ValueSet.status"/>
<short value="draft | active | retired | unknown"/>
<definition
value="The status of this value set. Enables tracking the life-cycle of the content. The status of the value set applies to the value set definition (ValueSet.compose) and the associated ValueSet metadata. Expansions do not have a state."/>
<comment
value="Allows filtering of value sets that are appropriate for use versus not.See also the [valueset-workflowStatus](http://hl7.org/fhir/extension-valueset-workflowstatus.html) extension for additional status information related to the editorial process."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.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() > 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 "Is Modifier" because applications should not use a retired {{title}} without due consideration"/>
<isSummary value="true"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="PublicationStatus"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
<valueBoolean value="true"/>
</extension>
<strength value="required"/>
<description value="The lifecycle status of an artifact."/>
<valueSet
value="http://hl7.org/fhir/ValueSet/publication-status|4.0.1"/>
</binding>
<mapping>
<identity value="workflow"/>
<map value="Definition.status"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.status"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.experimental">
<path value="ValueSet.experimental"/>
<short value="For testing purposes, not real usage"/>
<definition
value="A Boolean value to indicate that this value set is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage."/>
<comment
value="Allows filtering of value sets that are appropriate for use versus not."/>
<requirements
value="Enables experimental content to be developed following the same lifecycle that would be used for a production-level value set."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.experimental"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="boolean"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > 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="Definition.experimental"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.class"/>
</mapping>
</element>
<element id="ValueSet.date">
<path value="ValueSet.date"/>
<short value="Date last changed"/>
<definition
value="The date (and optionally time) when the value set was created or revised (e.g. the 'content logical definition')."/>
<comment
value="Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the value set. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource."/>
<alias value="Revision Date"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.date"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="workflow"/>
<map value="Definition.date"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.recorded"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.publisher">
<path value="ValueSet.publisher"/>
<short value="Name of the publisher (organization or individual)"/>
<definition
value="The name of the organization or individual that published the value set."/>
<comment
value="Usually an organization but may be an individual. The publisher (or steward) of the value set is the organization or individual primarily responsible for the maintenance and upkeep of the value set. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the value set. This item SHOULD be populated unless the information is available from context."/>
<requirements
value="Helps establish the "authority/credibility" of the value set. May also allow for contact."/>
<alias value="steward"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.publisher"/>
<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() > 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="Definition.publisher"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.witness"/>
</mapping>
</element>
<element id="ValueSet.contact">
<path value="ValueSet.contact"/>
<short value="Contact details for the publisher"/>
<definition
value="Contact details to assist a user in finding and communicating with the publisher."/>
<comment
value="May be a web site, an email address, a telephone number, etc."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.contact"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="ContactDetail"/>
</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() > 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="Definition.contact"/>
</mapping>
</element>
<element id="ValueSet.description">
<path value="ValueSet.description"/>
<short value="Natural language description of the value set"/>
<definition
value="A free text natural language description of the value set from a consumer's perspective. The textual description specifies the span of meanings for concepts to be included within the Value Set Expansion, and also may specify the intended use and limitations of the Value Set."/>
<comment
value="This description can be used to capture details such as why the value set was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the value set as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the value set is presumed to be the predominant language in the place the value set was created).The description is not intended to describe the semantics of the Value Set - there are no intrinsic semantics separate from the codes contained in its expansion. The description should capture its intended use, which is needed for ensuring integrity for its use in models across future changes. A description should be provided unless the value set is a contained resource (e.g. an anonymous value set in a profile). Most registries will require a description."/>
<alias value="Scope"/>
<alias value="Purpose"/>
<alias value="scope"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.description"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="markdown"/>
</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() > 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="Definition.description"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.useContext">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="trial-use"/>
</extension>
<path value="ValueSet.useContext"/>
<short value="The context that the content is intended to support"/>
<definition
value="The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate value set instances."/>
<comment
value="When multiple useContexts are specified, there is no expectation that all or any of the contexts apply."/>
<requirements value="Assist in searching for appropriate content."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.useContext"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="UsageContext"/>
</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() > 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="Definition.useContext"/>
</mapping>
</element>
<element id="ValueSet.jurisdiction">
<path value="ValueSet.jurisdiction"/>
<short value="Intended jurisdiction for value set (if applicable)"/>
<definition
value="A legal or geographic region in which the value set is intended to be used."/>
<comment
value="It may be possible for the value set to be used in jurisdictions other than those for which it was originally designed or intended."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.jurisdiction"/>
<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() > 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="Jurisdiction"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
<valueBoolean value="true"/>
</extension>
<strength value="extensible"/>
<description
value="Countries and regions within which this artifact is targeted for use."/>
<valueSet value="http://hl7.org/fhir/ValueSet/jurisdiction"/>
</binding>
<mapping>
<identity value="workflow"/>
<map value="Definition.jurisdiction"/>
</mapping>
</element>
<element id="ValueSet.immutable">
<path value="ValueSet.immutable"/>
<short
value="Indicates whether or not any change to the content logical definition may occur"/>
<definition
value="If this is set to 'true', then no new versions of the content logical definition can be created. Note: Other metadata might still change."/>
<comment
value="Normally immutability is set to 'false', which is the default assumption if it is not populated. Note that the implication is that if this is set to 'true', there may be only one ValueSet version for this definition. Immutability tends to be set to 'true' in one of two cases: - Where the value set, by the nature of its usage, cannot change. For example "All specializations of ACT in ActClassCode" - Where there's no safe way to express the "Purpose" such that someone else could safely make changes to the value set definition. Source workflow control must guarantee that the same URI always yields the same definition."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.immutable"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="boolean"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > 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="ValueSet.purpose">
<path value="ValueSet.purpose"/>
<short value="Why this value set is defined"/>
<definition
value="Explanation of why this value set is needed and why it has been designed as it has."/>
<comment
value="This element does not describe the usage of the value set. Instead, it provides traceability of ''why'' the resource is either needed or ''why'' it is defined as it is. This may be used to point to source materials or specifications that drove the structure of this value set."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.purpose"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="markdown"/>
</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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="workflow"/>
<map value="Definition.purpose"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.why[x]"/>
</mapping>
<mapping>
<identity value="objimpl"/>
<map value="no-gen-base"/>
</mapping>
</element>
<element id="ValueSet.copyright">
<path value="ValueSet.copyright"/>
<short value="Use and/or publishing restrictions"/>
<definition
value="A copyright statement relating to the value set and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the value set."/>
<comment
value="nullFrequently, the copyright differs between the value set and the codes that are included. The copyright statement should clearly differentiate between these when required."/>
<requirements
value="Consumers must be able to determine any legal restrictions on the use of the value set and/or its content."/>
<alias value="License"/>
<alias value="Restrictions"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.copyright"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="markdown"/>
</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() > 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="Definition.copyright"/>
</mapping>
<mapping>
<identity value="objimpl"/>
<map value="no-gen-base"/>
</mapping>
</element>
<element id="ValueSet.compose">
<path value="ValueSet.compose"/>
<short value="Content logical definition of the value set (CLD)"/>
<definition
value="A set of criteria that define the contents of the value set by including or excluding codes selected from the specified code system(s) that the value set draws from. This is also known as the Content Logical Definition (CLD)."/>
<alias value="Content Logical Definition"/>
<alias value="CLD"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.compose"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="BackboneElement"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.compose.id">
<path value="ValueSet.compose.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="ValueSet.compose.extension">
<path value="ValueSet.compose.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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="ValueSet.compose.modifierExtension">
<path value="ValueSet.compose.modifierExtension"/>
<short value="Extensions that cannot be ignored even if unrecognized"/>
<definition
value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
<requirements
value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.compose.lockedDate">
<path value="ValueSet.compose.lockedDate"/>
<short
value="Fixed date for references with no specified version (transitive)"/>
<definition
value="The Locked Date is the effective date that is used to determine the version of all referenced Code Systems and Value Set Definitions included in the compose that are not already tied to a specific version."/>
<comment
value="With a defined lockedDate the value set is considered "Locked". Otherwise, the value set may have different expansions as underlying code systems and/or value sets evolve. The interpretation of lockedDate is often dependent on the context - e.g. a SNOMED CT derived value set with a lockedDate will have a different expansion in USA than in UK. If a value set specifies a version for include and exclude statements, and also specifies a locked date, the specified versions need to be available that date, or the value set will not be usable."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.lockedDate"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="date"/>
</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() > 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="w5"/>
<map value="FiveWs.init"/>
</mapping>
</element>
<element id="ValueSet.compose.inactive">
<path value="ValueSet.compose.inactive"/>
<short value="Whether inactive codes are in the value set"/>
<definition
value="Whether inactive codes - codes that are not approved for current use - are in the value set. If inactive = true, inactive codes are to be included in the expansion, if inactive = false, the inactive codes will not be included in the expansion. If absent, the behavior is determined by the implementation, or by the applicable $expand parameters (but generally, inactive codes would be expected to be included)."/>
<comment
value="Note that in the FHIR terminology framework, "deprecated" does not mean inactive, but in some code systems, e.g. LOINC, "deprecated" does mean inactive. Code systems should define what codes are considered to be inactive. If this is not clearly defined (including in the FHIR code system resource), then all codes are assumed to be active.
The Value Set Definition specification defines an ActiveOnly element, which is the reverse of this element e.g. (ValueSet.compose.inactive=FALSE) is the same as (VSD.ActiveOnly=TRUE)."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.inactive"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="boolean"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > 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="ValueSet.compose.include">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name">
<valueString value="ConceptSet"/>
</extension>
<path value="ValueSet.compose.include"/>
<short
value="Include one or more codes from a code system or other value set(s)"/>
<definition
value="Include one or more codes from a code system or other value set(s)."/>
<comment
value="All the conditions in an include must be true. If a system is listed, all the codes from the system are listed. If one or more filters are listed, all of the filters must apply. If one or more value sets are listed, the codes must be in all the value sets. E.g. each include is 'include all the codes that meet all these conditions'."/>
<min value="1"/>
<max value="*"/>
<base>
<path value="ValueSet.compose.include"/>
<min value="1"/>
<max value="*"/>
</base>
<type>
<code value="BackboneElement"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="vsd-1"/>
<severity value="error"/>
<human
value="A value set include/exclude SHALL have a value set or a system"/>
<expression value="valueSet.exists() or system.exists()"/>
<xpath value="exists(f:valueSet) or exists(f:system)"/>
<source
value="http://hl7.org/fhir/StructureDefinition/shareablevalueset"/>
</constraint>
<constraint>
<key value="vsd-2"/>
<severity value="error"/>
<human
value="A value set with concepts or filters SHALL include a system"/>
<expression
value="(concept.exists() or filter.exists()) implies system.exists()"/>
<xpath
value="not(exists(f:concept) or exists(f:filter)) or exists(f:system)"/>
<source
value="http://hl7.org/fhir/StructureDefinition/shareablevalueset"/>
</constraint>
<constraint>
<key value="vsd-3"/>
<severity value="error"/>
<human value="Cannot have both concept and filter"/>
<expression value="concept.empty() or filter.empty()"/>
<xpath value="not(exists(f:concept)) or not(exists(f:filter))"/>
<source
value="http://hl7.org/fhir/StructureDefinition/shareablevalueset"/>
</constraint>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.compose.include.id">
<path value="ValueSet.compose.include.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="ValueSet.compose.include.extension">
<path value="ValueSet.compose.include.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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="ValueSet.compose.include.modifierExtension">
<path value="ValueSet.compose.include.modifierExtension"/>
<short value="Extensions that cannot be ignored even if unrecognized"/>
<definition
value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
<requirements
value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.compose.include.system">
<path value="ValueSet.compose.include.system"/>
<short value="The system the codes come from"/>
<definition
value="An absolute URI which is the code system from which the selected codes come from."/>
<comment
value="If there are no codes or filters, the entire code system is included. Note that the set of codes that are included may contain abstract codes. See ''Coding.system'' for further documentation about the correct value for the system element."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.include.system"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="uri"/>
</type>
<condition value="vsd-1"/>
<condition value="vsd-2"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > 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="ValueSet.compose.include.version">
<path value="ValueSet.compose.include.version"/>
<short value="Specific version of the code system referred to"/>
<definition
value="The version of the code system that the codes are selected from, or the special version '*' for all versions."/>
<comment
value="This is used when selecting the descendants of a concept - they may change between versions. If no version is specified, then the exact contents of the value set might not be known until a context of use binds it to a particular version. The special value '*' means all versions; It is at server discretion regarding expansions and which versions must be supported."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.include.version"/>
<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() > 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="ValueSet.compose.include.concept">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name">
<valueString value="ConceptReference"/>
</extension>
<path value="ValueSet.compose.include.concept"/>
<short value="A concept defined in the system"/>
<definition value="Specifies a concept to be included or excluded."/>
<comment
value="The list of concepts is considered ordered, though the order might not have any particular significance. Typically, the order of an expansion follows that defined in the compose element."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.compose.include.concept"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="BackboneElement"/>
</type>
<condition value="vsd-3"/>
<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() > 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="ValueSet.compose.include.concept.id">
<path value="ValueSet.compose.include.concept.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="ValueSet.compose.include.concept.extension">
<path value="ValueSet.compose.include.concept.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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="ValueSet.compose.include.concept.modifierExtension">
<path value="ValueSet.compose.include.concept.modifierExtension"/>
<short value="Extensions that cannot be ignored even if unrecognized"/>
<definition
value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
<requirements
value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.compose.include.concept.code">
<path value="ValueSet.compose.include.concept.code"/>
<short value="Code or expression from system"/>
<definition
value="Specifies a code for the concept to be included or excluded."/>
<comment
value="Expressions are allowed if defined by the underlying code system."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.include.concept.code"/>
<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() > 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="ValueSet.compose.include.concept.display">
<path value="ValueSet.compose.include.concept.display"/>
<short
value="Text to display for this code for this value set in this valueset"/>
<definition
value="The text to display to the user for this concept in the context of this valueset. If no display is provided, then applications using the value set use the display specified for the code by the system."/>
<comment
value="The value set resource allows for an alternative display to be specified for when this concept is used in this particular value set. See notes in the value set narrative about the correct use of this element."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.include.concept.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() > 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="ValueSet.compose.include.concept.designation">
<path value="ValueSet.compose.include.concept.designation"/>
<short value="Additional representations for this concept"/>
<definition
value="Additional representations for this concept when used in this value set - other languages, aliases, specialized purposes, used for particular purposes, etc."/>
<comment
value="Concepts have both a ```display``` and an array of ```designation```. The display is equivalent to a special designation with an implied ```designation.use``` of "primary code" and a language equal to the [Resource Language](http://hl7.org/fhir/resource.html#language)."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.compose.include.concept.designation"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="BackboneElement"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.compose.include.concept.designation.id">
<path value="ValueSet.compose.include.concept.designation.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="ValueSet.compose.include.concept.designation.extension">
<path value="ValueSet.compose.include.concept.designation.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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element
id="ValueSet.compose.include.concept.designation.modifierExtension">
<path
value="ValueSet.compose.include.concept.designation.modifierExtension"/>
<short value="Extensions that cannot be ignored even if unrecognized"/>
<definition
value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
<requirements
value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.compose.include.concept.designation.language">
<path value="ValueSet.compose.include.concept.designation.language"/>
<short value="Human language of the designation"/>
<definition value="The language this designation is defined for."/>
<comment
value="In the absence of a language, the resource language applies."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.include.concept.designation.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() > 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="ValueSet.compose.include.concept.designation.use">
<path value="ValueSet.compose.include.concept.designation.use"/>
<short value="Types of uses of designations"/>
<definition
value="A code that represents types of uses of designations."/>
<comment
value="If no use is provided, the designation can be assumed to be suitable for general display to a human user."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.include.concept.designation.use"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="Coding"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > 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-bindingName">
<valueString value="ConceptDesignationUse"/>
</extension>
<strength value="extensible"/>
<description value="Details of how a designation would be used."/>
<valueSet value="http://hl7.org/fhir/ValueSet/designation-use"/>
</binding>
</element>
<element id="ValueSet.compose.include.concept.designation.value">
<path value="ValueSet.compose.include.concept.designation.value"/>
<short value="The text value for this designation"/>
<definition value="The text value for this designation."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.include.concept.designation.value"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.compose.include.filter">
<path value="ValueSet.compose.include.filter"/>
<short
value="Select codes/concepts by their properties (including relationships)"/>
<definition
value="Select concepts by specify a matching criterion based on the properties (including relationships) defined by the system, or on filters defined by the system. If multiple filters are specified, they SHALL all be true."/>
<comment
value="Selecting codes by specifying filters based on properties is only possible where the underlying code system defines appropriate properties. Note that in some cases, the underlying code system defines the logical concepts but not the literal codes for the concepts. In such cases, the literal definitions may be provided by a third party."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.compose.include.filter"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="BackboneElement"/>
</type>
<condition value="vsd-3"/>
<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() > 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="ValueSet.compose.include.filter.id">
<path value="ValueSet.compose.include.filter.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="ValueSet.compose.include.filter.extension">
<path value="ValueSet.compose.include.filter.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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="ValueSet.compose.include.filter.modifierExtension">
<path value="ValueSet.compose.include.filter.modifierExtension"/>
<short value="Extensions that cannot be ignored even if unrecognized"/>
<definition
value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
<requirements
value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.compose.include.filter.property">
<path value="ValueSet.compose.include.filter.property"/>
<short value="A property/filter defined by the code system"/>
<definition
value="A code that identifies a property or a filter defined in the code system."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.include.filter.property"/>
<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() > 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="ValueSet.compose.include.filter.op">
<path value="ValueSet.compose.include.filter.op"/>
<short
value="= | is-a | descendent-of | is-not-a | regex | in | not-in | generalizes | exists"/>
<definition
value="The kind of operation to perform as a part of the filter criteria."/>
<comment
value="In case filter.property represents a property of the system, the operation applies to the selected property. In case filter.property represents a filter of the system, the operation SHALL match one of the CodeSystem.filter.operator values."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.include.filter.op"/>
<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() > 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="FilterOperator"/>
</extension>
<strength value="required"/>
<description
value="The kind of operation to perform as a part of a property based filter."/>
<valueSet value="http://hl7.org/fhir/ValueSet/filter-operator|4.0.1"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.compose.include.filter.value">
<path value="ValueSet.compose.include.filter.value"/>
<short
value="Code from the system, or regex criteria, or boolean value for exists"/>
<definition
value="The match value may be either a code defined by the system, or a string value, which is a regex match on the literal string of the property value (if the filter represents a property defined in CodeSystem) or of the system filter value (if the filter represents a filter defined in CodeSystem) when the operation is 'regex', or one of the values (true and false), when the operation is 'exists'."/>
<comment
value="Use regex matching with care - full regex matching on every SNOMED CT term is prohibitive, for example."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.compose.include.filter.value"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > 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="ValueSet.compose.include.valueSet">
<path value="ValueSet.compose.include.valueSet"/>
<short value="Select the contents included in this value set"/>
<definition
value="Selects the concepts found in this value set (based on its value set definition). This is an absolute URI that is a reference to ValueSet.url. If multiple value sets are specified this includes the union of the contents of all of the referenced value sets."/>
<comment
value="The value set URI is either a logical reference to a defined value set such as a [SNOMED CT reference set](http://hl7.org/fhir/snomedct.html#implicit), or a direct reference to a value set definition using ValueSet.url. The reference might not refer to an actual FHIR ValueSet resource; in this case, whatever is referred to is an implicit definition of a value set that needs to be clear about how versions are resolved."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.compose.include.valueSet"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="canonical"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/ValueSet"/>
</type>
<condition value="vsd-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() > 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="ValueSet.compose.exclude">
<path value="ValueSet.compose.exclude"/>
<short
value="Explicitly exclude codes from a code system or other value sets"/>
<definition
value="Exclude one or more codes from the value set based on code system filters and/or other value sets."/>
<comment
value="Usually this is used to selectively exclude codes that were included by subsumption in the inclusions. Any display names specified for the codes are ignored."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.compose.exclude"/>
<min value="0"/>
<max value="*"/>
</base>
<contentReference
value="http://hl7.org/fhir/StructureDefinition/ValueSet#ValueSet.compose.include"/>
<condition value="vsd-2"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > 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="ValueSet.expansion">
<path value="ValueSet.expansion"/>
<short value="Used when the value set is "expanded""/>
<definition
value="A value set can also be "expanded", where the value set is turned into a simple collection of enumerated codes. This element holds the expansion, if it has been performed."/>
<comment
value="Expansion is performed to produce a collection of codes that are ready to use for data entry or validation. Value set expansions are always considered to be stateless - they are a record of the set of codes in the value set at a point in time under a given set of conditions, and are not subject to ongoing maintenance.
Expansion.parameter is a simplified list of parameters - a subset of the features of the [Parameters](http://hl7.org/fhir/parameters.html) resource."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="BackboneElement"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.id">
<path value="ValueSet.expansion.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="ValueSet.expansion.extension">
<path value="ValueSet.expansion.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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="ValueSet.expansion.modifierExtension">
<path value="ValueSet.expansion.modifierExtension"/>
<short value="Extensions that cannot be ignored even if unrecognized"/>
<definition
value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
<requirements
value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.expansion.identifier">
<path value="ValueSet.expansion.identifier"/>
<short
value="Identifies the value set expansion (business identifier)"/>
<definition
value="An identifier that uniquely identifies this expansion of the valueset, based on a unique combination of the provided parameters, the system default parameters, and the underlying system code system versions etc. Systems may re-use the same identifier as long as those factors remain the same, and the expansion is the same, but are not required to do so. This is a business identifier."/>
<comment
value="Typically, this uri is a UUID (e.g. urn:uuid:8230ff20-c97a-4167-a59d-dc2cb9df16dd)."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.identifier"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.timestamp">
<path value="ValueSet.expansion.timestamp"/>
<short value="Time ValueSet expansion happened"/>
<definition
value="The time at which the expansion was produced by the expanding system."/>
<comment
value="This SHOULD be a fully populated instant, but in some circumstances, value sets are expanded by hand, and the expansion is published without that precision."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.timestamp"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="dateTime"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.total">
<path value="ValueSet.expansion.total"/>
<short value="Total number of codes in the expansion"/>
<definition
value="The total number of concepts in the expansion. If the number of concept nodes in this resource is less than the stated number, then the server can return more using the offset parameter."/>
<comment value="Paging only applies to flat expansions."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.total"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="integer"/>
</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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.offset">
<path value="ValueSet.expansion.offset"/>
<short value="Offset at which this resource starts"/>
<definition
value="If paging is being used, the offset at which this resource starts. I.e. this resource is a partial view into the expansion. If paging is not being used, this element SHALL NOT be present."/>
<comment
value="Paging only applies to flat expansions. If a filter is applied, the count is the number of concepts that matched the filter, not the number of concepts in an unfiltered view of the expansion."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.offset"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="integer"/>
</type>
<meaningWhenMissing value="Paging is not being used"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.parameter">
<path value="ValueSet.expansion.parameter"/>
<short value="Parameter that controlled the expansion process"/>
<definition
value="A parameter that controlled the expansion process. These parameters may be used by users of expanded value sets to check whether the expansion is suitable for a particular purpose, or to pick the correct expansion."/>
<comment
value="The server decides which parameters to include here, but at a minimum, the list SHOULD include all of the parameters that affect the $expand operation. If the expansion will be persisted all of these parameters SHALL be included. If the codeSystem on the server has a specified version then this version SHALL be provided as a parameter in the expansion (note that not all code systems have a version)."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.expansion.parameter"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="BackboneElement"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.parameter.id">
<path value="ValueSet.expansion.parameter.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="ValueSet.expansion.parameter.extension">
<path value="ValueSet.expansion.parameter.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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="ValueSet.expansion.parameter.modifierExtension">
<path value="ValueSet.expansion.parameter.modifierExtension"/>
<short value="Extensions that cannot be ignored even if unrecognized"/>
<definition
value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
<requirements
value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.expansion.parameter.name">
<path value="ValueSet.expansion.parameter.name"/>
<short value="Name as assigned by the client or server"/>
<definition
value="Name of the input parameter to the $expand operation; may be a server-assigned name for additional default or other server-supplied parameters used to control the expansion process."/>
<comment
value="The names are assigned at the discretion of the server."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.parameter.name"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.parameter.value[x]">
<path value="ValueSet.expansion.parameter.value[x]"/>
<short value="Value of the named parameter"/>
<definition value="The value of the parameter."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.parameter.value[x]"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<type>
<code value="boolean"/>
</type>
<type>
<code value="integer"/>
</type>
<type>
<code value="decimal"/>
</type>
<type>
<code value="uri"/>
</type>
<type>
<code value="code"/>
</type>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.contains">
<path value="ValueSet.expansion.contains"/>
<short value="Codes in the value set"/>
<definition
value="The codes that are contained in the value set expansion."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.expansion.contains"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="BackboneElement"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="vsd-6"/>
<severity value="error"/>
<human value="SHALL have a code or a display"/>
<expression value="code.exists() or display.exists()"/>
<xpath value="exists(f:code) or exists(f:display)"/>
<source
value="http://hl7.org/fhir/StructureDefinition/shareablevalueset"/>
</constraint>
<constraint>
<key value="vsd-9"/>
<severity value="error"/>
<human value="Must have a code if not abstract"/>
<expression value="code.exists() or abstract = true"/>
<xpath value="exists(f:code) or (f:abstract/@value = true())"/>
<source
value="http://hl7.org/fhir/StructureDefinition/shareablevalueset"/>
</constraint>
<constraint>
<key value="vsd-10"/>
<severity value="error"/>
<human value="Must have a system if a code is present"/>
<expression value="code.empty() or system.exists()"/>
<xpath value="exists(f:system) or not(exists(f:code))"/>
<source
value="http://hl7.org/fhir/StructureDefinition/shareablevalueset"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.contains.id">
<path value="ValueSet.expansion.contains.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="ValueSet.expansion.contains.extension">
<path value="ValueSet.expansion.contains.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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="ValueSet.expansion.contains.modifierExtension">
<path value="ValueSet.expansion.contains.modifierExtension"/>
<short value="Extensions that cannot be ignored even if unrecognized"/>
<definition
value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
<requirements
value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="ValueSet.expansion.contains.system">
<path value="ValueSet.expansion.contains.system"/>
<short value="System value for the code"/>
<definition
value="An absolute URI which is the code system in which the code for this item in the expansion is defined."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.contains.system"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.contains.abstract">
<path value="ValueSet.expansion.contains.abstract"/>
<short value="If user cannot select this entry"/>
<definition
value="If true, this entry is included in the expansion for navigational purposes, and the user cannot select the code directly as a proper value."/>
<comment
value="This should not be understood to exclude its use for searching (e.g. by subsumption testing). The client should know whether it is appropriate for the user to select an abstract code or not."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.contains.abstract"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="boolean"/>
</type>
<meaningWhenMissing
value="If this is not populated, systems can assume that the concept it not abstract. This SHALL always be populated for abstract concepts"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.contains.inactive">
<path value="ValueSet.expansion.contains.inactive"/>
<short value="If concept is inactive in the code system"/>
<definition
value="If the concept is inactive in the code system that defines it. Inactive codes are those that are no longer to be used, but are maintained by the code system for understanding legacy data. It might not be known or specified whether an concept is inactive (and it may depend on the context of use)."/>
<comment
value="This should only have a value if the concept is inactive."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.contains.inactive"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="boolean"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.contains.version">
<path value="ValueSet.expansion.contains.version"/>
<short value="Version in which this code/display is defined"/>
<definition
value="The version of the code system from this code was taken. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged."/>
<comment
value="The exact value of the version string is specified by the system from which the code is derived."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.contains.version"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.contains.code">
<path value="ValueSet.expansion.contains.code"/>
<short value="Code - if blank, this is not a selectable code"/>
<definition
value="The code for this item in the expansion hierarchy. If this code is missing the entry in the hierarchy is a place holder (abstract) and does not represent a valid code in the value set."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.contains.code"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
<condition value="vsd-6"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.contains.display">
<path value="ValueSet.expansion.contains.display"/>
<short value="User display for the concept"/>
<definition
value="The recommended display for this item in the expansion."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="ValueSet.expansion.contains.display"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<condition value="vsd-6"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.contains.designation">
<path value="ValueSet.expansion.contains.designation"/>
<short value="Additional representations for this item"/>
<definition
value="Additional representations for this item - other languages, aliases, specialized purposes, used for particular purposes, etc. These are relevant when the conditions of the expansion do not fix to a single correct representation."/>
<comment
value="The designations provided must be based on the value set and code system definitions."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.expansion.contains.designation"/>
<min value="0"/>
<max value="*"/>
</base>
<contentReference
value="http://hl7.org/fhir/StructureDefinition/ValueSet#ValueSet.compose.include.concept.designation"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="ValueSet.expansion.contains.contains">
<path value="ValueSet.expansion.contains.contains"/>
<short value="Codes contained under this entry"/>
<definition
value="Other codes and entries contained under this entry in the hierarchy."/>
<comment
value="If the expansion uses this element, there is no implication about the logical relationship between them, and the structure cannot be used for logical inferencing. The structure exists to provide navigational assistance for helping human users to locate codes in the expansion."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="ValueSet.expansion.contains.contains"/>
<min value="0"/>
<max value="*"/>
</base>
<contentReference
value="http://hl7.org/fhir/StructureDefinition/ValueSet#ValueSet.expansion.contains"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
</snapshot>
<differential>
<element id="ValueSet">
<path value="ValueSet"/>
<mustSupport value="false"/>
</element>
<element id="ValueSet.extension:approvalDate">
<path value="ValueSet.extension"/>
<sliceName value="approvalDate"/>
<min value="0"/>
<max value="1"/>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/resource-approvalDate"/>
</type>
<mustSupport value="true"/>
</element>
<element id="ValueSet.extension:effectiveDate">
<path value="ValueSet.extension"/>
<sliceName value="effectiveDate"/>
<min value="0"/>
<max value="1"/>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-effectiveDate"/>
</type>
<mustSupport value="true"/>
</element>
<element id="ValueSet.extension:expirationDate">
<path value="ValueSet.extension"/>
<sliceName value="expirationDate"/>
<min value="0"/>
<max value="1"/>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-expirationDate"/>
</type>
<mustSupport value="true"/>
</element>
<element id="ValueSet.extension:lastReviewDate">
<path value="ValueSet.extension"/>
<sliceName value="lastReviewDate"/>
<min value="0"/>
<max value="1"/>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/resource-lastReviewDate"/>
</type>
<mustSupport value="true"/>
</element>
<element id="ValueSet.extension:author">
<path value="ValueSet.extension"/>
<sliceName value="author"/>
<min value="0"/>
<max value="*"/>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-author"/>
</type>
<mustSupport value="false"/>
</element>
<element id="ValueSet.extension:keyWord">
<path value="ValueSet.extension"/>
<sliceName value="keyWord"/>
<min value="0"/>
<max value="*"/>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-keyWord"/>
</type>
<mustSupport value="true"/>
</element>
<element id="ValueSet.extension:sourceReference">
<path value="ValueSet.extension"/>
<sliceName value="sourceReference"/>
<min value="0"/>
<max value="1"/>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-sourceReference"/>
</type>
<mustSupport value="false"/>
</element>
<element id="ValueSet.extension:usage">
<path value="ValueSet.extension"/>
<sliceName value="usage"/>
<min value="0"/>
<max value="*"/>
<type>
<code value="Extension"/>
<profile
value="http://hl7.org/fhir/StructureDefinition/valueset-usage"/>
</type>
<mustSupport value="false"/>
</element>
<element id="ValueSet.title">
<path value="ValueSet.title"/>
<min value="1"/>
<max value="1"/>
<mustSupport value="false"/>
</element>
<element id="ValueSet.date">
<path value="ValueSet.date"/>
<min value="1"/>
<max value="1"/>
<mustSupport value="false"/>
</element>
<element id="ValueSet.purpose">
<path value="ValueSet.purpose"/>
<mustSupport value="false"/>
</element>
<element id="ValueSet.copyright">
<path value="ValueSet.copyright"/>
<mustSupport value="true"/>
</element>
</differential>
</StructureDefinition>
IG © 2019+ Clinical Quality Information WG. Package hl7.fhir.us.cqfmeasures#4.0.0 based on FHIR 4.0.1. Generated 2023-08-28
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