<status value="active"/> <experimental value="false"/> <date value="2026-05-11T04:30:28+00:00"/> <publisher value="HL7 International / Clinical Decision Support"/> <contact> <telecom> <system value="url"/> <value value="http://www.hl7.org/Special/committees/dss"/> </telecom> </contact> <description value="Enforces the minimum information set for the substance metadata required by HL7 and other organizations that share and publish substances"/> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </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> <mapping> <identity value="orim"/> <uri value="http://hl7.org/orim"/> <name value="Ontological RIM Mapping"/> </mapping> <kind value="resource"/> <abstract value="false"/> <type value="Substance"/> <baseDefinition value="http://hl7.org/fhir/uv/crmi/StructureDefinition/crmi-substancedefinition"/> <derivation value="constraint"/> <snapshot> <extension url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version"> <valueString value="2.0.0"/> </extension> <element id="Substance"> <path value="Substance"/> <short value="A homogeneous material with a definite composition"/> <definition value="A homogeneous material with a definite composition."/> <min value="1"/> <max value="1"/> <base> <path value="Substance"/> <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="shr-1"/> <severity value="error"/> <human value="If knowledge capabilities are stated, they SHALL include shareable"/> <expression value="extension('http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability').exists() implies extension('http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability').where(value = 'shareable').exists()"/> </constraint> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="Entity. Role, or Act"/> </mapping> <mapping> <identity value="rim"/> <map value="Material"/> </mapping> <mapping> <identity value="orim"/> <map value="fhir:Substance rdfs:subClassOf rim:Entity, [ a owl:Restriction; owl:onProperty rim:Act.classCode; owl:allValuesFrom cs:EntityClass\#MAT ]."/> </mapping> </element> <element id="Substance.id"> <path value="Substance.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="Substance.meta"> <path value="Substance.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="Substance.implicitRules"> <path value="Substance.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="Substance.language"> <path value="Substance.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> <strength value="preferred"/> <description value="A human language."/> <valueSet value="http://hl7.org/fhir/ValueSet/languages|4.0.1"/> </binding> </element> <element id="Substance.text"> <path value="Substance.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="Substance.contained"> <path value="Substance.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="Substance.extension"> <path value="Substance.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="3"/> <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="Substance.extension:knowledgeCapability"> <path value="Substance.extension"/> <sliceName value="knowledgeCapability"/> <short value="shareable | computable | publishable | executable"/> <definition value="Defines a knowledge capability afforded by this knowledge artifact."/> <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/cqf-knowledgeCapability"/> </type> <condition value="ele-1"/> <condition value="shr-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"/> <isSummary value="false"/> </element> <element id="Substance.extension:artifactComment"> <path value="Substance.extension"/> <sliceName value="artifactComment"/> <short value="Additional documentation, review, or usage guidance"/> <definition value="A comment containing additional documentation, a review comment, usage guidance, or other relevant information from a particular user."/> <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/cqf-artifactComment"/> </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"/> <isSummary value="false"/> </element> <element id="Substance.extension:url"> <path value="Substance.extension"/> <sliceName value="url"/> <short value="Canonical identifier for this artifact, represented as a URI (globally unique)"/> <definition value="An absolute URI that is used to identify this artifact 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 an authoritative instance of this artifact is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the artifact 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](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](resource.html#meta) element to indicate where the current master source of the resource can be found."/> <min value="1"/> <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/artifact-url"/> </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"/> <isSummary value="false"/> </element> <element id="Substance.extension:version"> <path value="Substance.extension"/> <sliceName value="version"/> <short value="Business version of the artifact"/> <definition value="The identifier that is used to identify this version of the artifact when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the artifact 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."/> <min value="1"/> <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/artifact-version"/> </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"/> <isSummary value="false"/> </element> <element id="Substance.extension:versionAlgorithm"> <path value="Substance.extension"/> <sliceName value="versionAlgorithm"/> <short value="How to compare versions"/> <definition value="Indicates the mechanism used to compare versions to determine which is more current."/> <comment value="If set as a string, this is a FHIRPath expression that has two additional context variables passed in - %version1 and %version2 and will return a negative number if version1 is newer, a positive number if version2 and a 0 if the version ordering can't be successfully be determined."/> <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/artifact-versionAlgorithm"/> </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"/> <isSummary value="false"/> </element> <element id="Substance.extension:versionPolicy"> <path value="Substance.extension"/> <sliceName value="versionPolicy"/> <short value="metadata | strict"/> <definition value="Defines the versioning policy of the artifact."/> <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/artifact-versionPolicy"/> </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"/> <isSummary value="false"/> </element> <element id="Substance.extension:webSource"> <path value="Substance.extension"/> <sliceName value="webSource"/> <short value="web-source"/> <definition value="Where a human readable web page describing the resource can be found, if it's at a different location to the canonical URL itself."/> <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/web-source"/> </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"/> <isSummary value="false"/> </element> <element id="Substance.extension:name"> <path value="Substance.extension"/> <sliceName value="name"/> <short value="Name for this artifact (computer friendly)"/> <definition value="A natural language name identifying the artifact. 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."/> <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/artifact-name"/> </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"/> <isSummary value="false"/> </element> <element id="Substance.extension:title"> <path value="Substance.extension"/> <sliceName value="title"/> <short value="Name for this artifact (human friendly)"/> <definition value="A short, descriptive, user-friendly title for the artifact."/> <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="DomainResource.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-title"/> </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"/> <isSummary value="false"/> </element> <element id="Substance.extension:experimental"> <path value="Substance.extension"/> <sliceName value="experimental"/> <short value="For testing purposes, not real usage"/> <definition value="A Boolean value to indicate that this artifact is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage."/> <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/artifact-experimental"/> </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"/> <isSummary value="false"/> </element> <element id="Substance.extension:publisher"> <path value="Substance.extension"/> <sliceName value="publisher"/> <short value="Name of the publisher/steward (organization or individual)"/> <definition value="The name of the organization or individual responsible for the release and ongoing maintenance of the artifact."/> <comment value="Usually an organization but may be an individual. The publisher (or steward) of the artifact is the organization or individual primarily responsible for the maintenance and upkeep of the artifact. 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 artifact. This item SHOULD be populated unless the information is available from context."/> <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/artifact-publisher"/> </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"/> <isSummary value="false"/> </element> <element id="Substance.modifierExtension"> <path value="Substance.modifierExtension"/> <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="1"/> <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"/> </element> <element id="Substance.modifierExtension:status"> <path value="Substance.modifierExtension"/> <sliceName value="status"/> <short value="draft | active | retired | unknown"/> <definition value="The status of this artifact. Enables tracking the life-cycle of the content."/> <min value="1"/> <max value="1"/> <base> <path value="DomainResource.modifierExtension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-status"/> </type> <condition value="ele-1"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > 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="true"/> <isModifierReason value="This is labeled as "Is Modifier" because applications should not use a retired CodeSystem without due consideration"/> <isSummary value="false"/> </element> <element id="Substance.identifier"> <path value="Substance.identifier"/> <short value="Unique identifier"/> <definition value="Unique identifier for the substance."/> <comment value="This identifier is associated with the kind of substance in contrast to the Substance.instance.identifier which is associated with the package/container."/> <min value="0"/> <max value="*"/> <base> <path value="Substance.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> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="w5"/> <map value="FiveWs.identifier"/> </mapping> <mapping> <identity value="rim"/> <map value=".id"/> </mapping> </element> <element id="Substance.status"> <path value="Substance.status"/> <short value="active | inactive | entered-in-error"/> <definition value="A code to indicate if the substance is actively used."/> <min value="0"/> <max value="1"/> <base> <path value="Substance.status"/> <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="true"/> <isModifierReason value="This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid"/> <isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="FHIRSubstanceStatus"/> </extension> <strength value="required"/> <description value="A code to indicate if the substance is actively used."/> <valueSet value="http://hl7.org/fhir/ValueSet/substance-status|4.0.1"/> </binding> <mapping> <identity value="w5"/> <map value="FiveWs.status"/> </mapping> <mapping> <identity value="rim"/> <map value=".statusCode"/> </mapping> </element> <element id="Substance.category"> <path value="Substance.category"/> <short value="What class/type of substance this is"/> <definition value="A code that classifies the general type of substance. This is used for searching, sorting and display purposes."/> <comment value="The level of granularity is defined by the category concepts in the value set. More fine-grained filtering can be performed using the metadata and/or terminology hierarchy in Substance.code."/> <min value="0"/> <max value="*"/> <base> <path value="Substance.category"/> <min value="0"/> <max value="*"/> </base> <type> <code value="CodeableConcept"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > 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="SubstanceCategory"/> </extension> <strength value="extensible"/> <description value="Category or classification of substance."/> <valueSet value="http://hl7.org/fhir/ValueSet/substance-category|4.0.1"/> </binding> <mapping> <identity value="w5"/> <map value="FiveWs.class"/> </mapping> <mapping> <identity value="rim"/> <map value=".code"/> </mapping> </element> <element id="Substance.code"> <path value="Substance.code"/> <short value="What substance this is"/> <definition value="A code (or set of codes) that identify this substance."/> <comment value="This could be a reference to an externally defined code. It could also be a locally assigned code (e.g. a formulary), optionally with translations to the standard drug codes."/> <min value="1"/> <max value="1"/> <base> <path value="Substance.code"/> <min value="1"/> <max value="1"/> </base> <type> <code value="CodeableConcept"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <xpath value="@value|f:*|h:div"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="SubstanceCode"/> </extension> <strength value="example"/> <description value="Substance codes."/> <valueSet value="http://hl7.org/fhir/ValueSet/substance-code|4.0.1"/> </binding> <mapping> <identity value="w5"/> <map value="FiveWs.what[x]"/> </mapping> <mapping> <identity value="rim"/> <map value=".code"/> </mapping> <mapping> <identity value="orim"/> <map value="fhir:Substance.code rdfs:subPropertyOf rim:Entity.code"/> </mapping> </element> <element id="Substance.description"> <path value="Substance.description"/> <short value="Textual description of the substance, comments"/> <definition value="A description of the substance - its appearance, handling requirements, and other usage notes."/> <min value="1"/> <max value="1"/> <base> <path value="Substance.description"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <xpath value="@value|f:*|h:div"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="rim"/> <map value=".player.desc"/> </mapping> </element> <element id="Substance.instance"> <path value="Substance.instance"/> <short value="If this describes a specific package/container of the substance"/> <definition value="Substance may be used to describe a kind of substance, or a specific package/container of the substance: an instance."/> <min value="0"/> <max value="*"/> <base> <path value="Substance.instance"/> <min value="0"/> <max value="*"/> </base> <type> <code value="BackboneElement"/> </type> <meaningWhenMissing value="If this element is not present, then the substance resource describes a kind of substance"/> <constraint> <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=".player.determinerCode"/> </mapping> </element> <element id="Substance.instance.id"> <path value="Substance.instance.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="Substance.instance.extension"> <path value="Substance.instance.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="Substance.instance.modifierExtension"> <path value="Substance.instance.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/R4/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="Substance.instance.identifier"> <path value="Substance.instance.identifier"/> <short value="Identifier of the package/container"/> <definition value="Identifier associated with the package/container (usually a label affixed directly)."/> <min value="0"/> <max value="1"/> <base> <path value="Substance.instance.identifier"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Identifier"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > 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=".id"/> </mapping> </element> <element id="Substance.instance.expiry"> <path value="Substance.instance.expiry"/> <short value="When no longer valid to use"/> <definition value="When the substance is no longer valid to use. For some substances, a single arbitrary date is used for expiry."/> <min value="0"/> <max value="1"/> <base> <path value="Substance.instance.expiry"/> <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> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="rim"/> <map value=".expiryTime"/> </mapping> </element> <element id="Substance.instance.quantity"> <path value="Substance.instance.quantity"/> <short value="Amount of substance in the package"/> <definition value="The amount of the substance."/> <min value="0"/> <max value="1"/> <base> <path value="Substance.instance.quantity"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Quantity"/> <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity|4.0.1"/> </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=".player.quantity"/> </mapping> </element> <element id="Substance.ingredient"> <path value="Substance.ingredient"/> <short value="Composition information about the substance"/> <definition value="A substance can be composed of other substances."/> <min value="0"/> <max value="*"/> <base> <path value="Substance.ingredient"/> <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> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="rim"/> <map value=".player.scopesRole[classCode=INGR]"/> </mapping> </element> <element id="Substance.ingredient.id"> <path value="Substance.ingredient.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="Substance.ingredient.extension"> <path value="Substance.ingredient.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="Substance.ingredient.modifierExtension"> <path value="Substance.ingredient.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/R4/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="Substance.ingredient.quantity"> <path value="Substance.ingredient.quantity"/> <short value="Optional amount (concentration)"/> <definition value="The amount of the ingredient in the substance - a concentration ratio."/> <min value="0"/> <max value="1"/> <base> <path value="Substance.ingredient.quantity"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Ratio"/> </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=".quantity"/> </mapping> </element> <element id="Substance.ingredient.substance[x]"> <path value="Substance.ingredient.substance[x]"/> <slicing> <discriminator> <type value="type"/> <path value="$this"/> </discriminator> <ordered value="false"/> <rules value="open"/> </slicing> <short value="A component of the substance"/> <definition value="Another substance that is a component of this substance."/> <min value="1"/> <max value="1"/> <base> <path value="Substance.ingredient.substance[x]"/> <min value="1"/> <max value="1"/> </base> <type> <code value="CodeableConcept"/> </type> <type> <code value="Reference"/> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Substance|4.0.1"/> </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="true"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="SubstanceIngredient"/> </extension> <strength value="example"/> <description value="Substance Ingredient codes."/> <valueSet value="http://hl7.org/fhir/ValueSet/substance-code|4.0.1"/> </binding> <mapping> <identity value="rim"/> <map value=".player"/> </mapping> </element> <element id="Substance.ingredient.substance[x]:substanceReference"> <path value="Substance.ingredient.substance[x]"/> <sliceName value="substanceReference"/> <short value="A component of the substance"/> <definition value="Another substance that is a component of this substance."/> <min value="0"/> <max value="1"/> <base> <path value="Substance.ingredient.substance[x]"/> <min value="1"/> <max value="1"/> </base> <type> <code value="Reference"/> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Substance"/> </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="true"/> <mapping> <identity value="rim"/> <map value=".player"/> </mapping> </element> <element id="Substance.ingredient.substance[x]:substanceReference.id"> <path value="Substance.ingredient.substance[x].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="Substance.ingredient.substance[x]:substanceReference.extension"> <path value="Substance.ingredient.substance[x].extension"/> <slicing> <discriminator> <type value="value"/> <path value="url"/> </discriminator> <description value="Extensions are always sliced by (at least) url"/> <rules value="open"/> </slicing> <short value="Additional content defined by implementations"/> <definition value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/> <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/> <alias value="extensions"/> <alias value="user content"/> <min value="0"/> <max value="*"/> <base> <path value="Element.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > 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="Substance.ingredient.substance[x]:substanceReference.extension:nonCanonicalReference"> <path value="Substance.ingredient.substance[x].extension"/> <sliceName value="nonCanonicalReference"/> <short value="The artifact"/> <definition value="Create a reference, following canonical reference semantics, to an artifact that uses the artifact-url and artifact-version extensions to provide a canonical identifier."/> <min value="0"/> <max value="1"/> <base> <path value="Element.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-uriReference"/> </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> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="Substance.ingredient.substance[x]:substanceReference.reference"> <path value="Substance.ingredient.substance[x].reference"/> <short value="Literal reference, Relative, internal or absolute URL"/> <definition value="A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources."/> <comment value="Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server."/> <min value="0"/> <max value="1"/> <base> <path value="Reference.reference"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <condition value="ref-1"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > 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="Substance.ingredient.substance[x]:substanceReference.type"> <path value="Substance.ingredient.substance[x].type"/> <short value="Type the reference refers to (e.g. "Patient")"/> <definition value="The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources)."/> <comment value="This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified."/> <min value="0"/> <max value="1"/> <base> <path value="Reference.type"/> <min value="0"/> <max value="1"/> </base> <type> <code value="uri"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <xpath value="@value|f:*|h:div"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <isModifier value="false"/> <isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="FHIRResourceTypeExt"/> </extension> <strength value="extensible"/> <description value="Aa resource (or, for logical models, the URI of the logical model)."/> <valueSet value="http://hl7.org/fhir/ValueSet/resource-types|4.0.1"/> </binding> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="Substance.ingredient.substance[x]:substanceReference.identifier"> <path value="Substance.ingredient.substance[x].identifier"/> <short value="Logical reference, when literal reference is not known"/> <definition value="An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference."/> <comment value="When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any)."/> <min value="0"/> <max value="1"/> <base> <path value="Reference.identifier"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Identifier"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > 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=".identifier"/> </mapping> </element> <element id="Substance.ingredient.substance[x]:substanceReference.display"> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <path value="Substance.ingredient.substance[x].display"/> <short value="Text alternative for the resource"/> <definition value="Plain text narrative that identifies the resource in addition to the resource reference."/> <comment value="This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it."/> <min value="0"/> <max value="1"/> <base> <path value="Reference.display"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > 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> </snapshot> <differential> <element id="Substance"> <path value="Substance"/> <min value="1"/> <max value="1"/> <constraint> <key value="shr-1"/> <severity value="error"/> <human value="If knowledge capabilities are stated, they SHALL include shareable"/> <expression value="extension('http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability').exists() implies extension('http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability').where(value = 'shareable').exists()"/> </constraint> </element> <element id="Substance.extension:knowledgeCapability"> <path value="Substance.extension"/> <sliceName value="knowledgeCapability"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability"/> </type> <condition value="shr-1"/> <mustSupport value="true"/> </element> <element id="Substance.extension:artifactComment"> <path value="Substance.extension"/> <sliceName value="artifactComment"/> <min value="0"/> <max value="*"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/cqf-artifactComment"/> </type> <mustSupport value="true"/> </element> <element id="Substance.extension:url"> <path value="Substance.extension"/> <sliceName value="url"/> <min value="1"/> <max value="1"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-url"/> </type> <mustSupport value="true"/> </element> <element id="Substance.extension:version"> <path value="Substance.extension"/> <sliceName value="version"/> <min value="1"/> <max value="1"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-version"/> </type> <mustSupport value="true"/> </element> <element id="Substance.extension:versionAlgorithm"> <path value="Substance.extension"/> <sliceName value="versionAlgorithm"/> <min value="0"/> <max value="1"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-versionAlgorithm"/> </type> <mustSupport value="true"/> </element> <element id="Substance.extension:versionPolicy"> <path value="Substance.extension"/> <sliceName value="versionPolicy"/> <min value="0"/> <max value="1"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-versionPolicy"/> </type> <mustSupport value="true"/> </element> <element id="Substance.extension:webSource"> <path value="Substance.extension"/> <sliceName value="webSource"/> <min value="0"/> <max value="1"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/web-source"/> </type> <mustSupport value="true"/> </element> <element id="Substance.extension:name"> <path value="Substance.extension"/> <sliceName value="name"/> <min value="0"/> <max value="1"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-name"/> </type> <mustSupport value="true"/> </element> <element id="Substance.extension:title"> <path value="Substance.extension"/> <sliceName value="title"/> <min value="1"/> <max value="1"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-title"/> </type> <mustSupport value="true"/> </element> <element id="Substance.extension:experimental"> <path value="Substance.extension"/> <sliceName value="experimental"/> <min value="0"/> <max value="1"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-experimental"/> </type> <mustSupport value="true"/> </element> <element id="Substance.extension:publisher"> <path value="Substance.extension"/> <sliceName value="publisher"/> <min value="0"/> <max value="1"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-publisher"/> </type> <mustSupport value="true"/> </element> <element id="Substance.modifierExtension:status"> <path value="Substance.modifierExtension"/> <sliceName value="status"/> <min value="1"/> <max value="1"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/artifact-status"/> </type> <mustSupport value="true"/> </element> <element id="Substance.description"> <path value="Substance.description"/> <min value="1"/> <max value="1"/> <mustSupport value="true"/> </element> </differential> </StructureDefinition>

Generated Narrative: StructureDefinition crmi-shareablesubstance

Name	Flags	Card.	Type	Description & Constraints
Substance	C	1..1	CRMISubstanceDefinition	A homogeneous material with a definite composition Constraints: shr-1
Slices for extension				Content/Rules for all slices
extension:knowledgeCapability	SC	0..*	code	shareable \| computable \| publishable \| executable URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability Binding: KnowledgeCapability (required)
extension:artifactComment	S	0..*	(Complex)	Additional documentation, review, or usage guidance URL: http://hl7.org/fhir/StructureDefinition/cqf-artifactComment
extension:url	S	1..1	uri	Canonical identifier for this artifact, represented as a URI (globally unique) URL: http://hl7.org/fhir/StructureDefinition/artifact-url
extension:version	S	1..1	string	Business version of the artifact URL: http://hl7.org/fhir/StructureDefinition/artifact-version
extension:versionAlgorithm	S	0..1	Coding	How to compare versions URL: http://hl7.org/fhir/StructureDefinition/artifact-versionAlgorithm Binding: VersionAlgorithm (extensible)
extension:versionPolicy	S	0..1	CodeableConcept	metadata \| strict URL: http://hl7.org/fhir/StructureDefinition/artifact-versionPolicy Binding: Artifact Version Policy (extensible): The versioning policy of the artifact
extension:webSource	S	0..1	url	web-source URL: http://hl7.org/fhir/StructureDefinition/web-source
extension:name	S	0..1	string	Name for this artifact (computer friendly) URL: http://hl7.org/fhir/StructureDefinition/artifact-name
extension:title	S	1..1	string	Name for this artifact (human friendly) URL: http://hl7.org/fhir/StructureDefinition/artifact-title
extension:experimental	S	0..1	boolean	For testing purposes, not real usage URL: http://hl7.org/fhir/StructureDefinition/artifact-experimental
extension:publisher	S	0..1	string	Name of the publisher/steward (organization or individual) URL: http://hl7.org/fhir/StructureDefinition/artifact-publisher
Slices for modifierExtension				Content/Rules for all slices
modifierExtension:status	S	1..1	code	draft \| active \| retired \| unknown URL: http://hl7.org/fhir/StructureDefinition/artifact-status Binding: PublicationStatus (required): The lifecycle status of an artifact.
description	S	1..1	string	Textual description of the substance, comments
Documentation for this format