<status value="active" /> <experimental value="false" /> <date value="2025-04-16T19:44:06+00:00" /> <publisher value="HL7 International / FHIR Infrastructure" /> <contact> <telecom> <system value="url" /> <value value="http://www.hl7.org/Special/committees/fiwg" /> </telecom> </contact> <description value="Extension definition for Additional Binding. Additional Bindings are in the R5 Element Definition; this extension is used in prior versions (instead of the R5 cross-version extension)" /> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm" /> <code value="001" /> </coding> </jurisdiction> <fhirVersion value="5.0.0" /> <mapping> <identity value="rim" /> <uri value="http://hl7.org/v3" /> <name value="RIM Mapping" /> </mapping> <kind value="complex-type" /> <abstract value="false" /> <context> <type value="element" /> <expression value="ElementDefinition.binding" /> </context> <context> <type value="element" /> <expression value="CodeSystem.property" /> </context> <type value="Extension" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" /> <derivation value="constraint" /> <snapshot> <extension url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version"> <valueString value="5.0.0" /> </extension> <element id="Extension"> <path value="Extension" /> <short value="Additional Binding" /> <definition value="Additional bindings applied to bindable elements." /> <min value="0" /> <max value="*" /> <base> <path value="Extension" /> <min value="0" /> <max value="*" /> </base> <constraint> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <constraint> <key value="ext-ab-1" /> <severity value="warning" /> <human value="Additional Bindings SHOULD have a key to allow a binding to be constrained." /> <expression value="extension.where(url='key').exists()" /> </constraint> <isModifier value="false" /> </element> <element id="Extension.id"> <path value="Extension.id" /> <representation value="xmlAttr" /> <short value="Unique id for inter-element referencing" /> <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." /> <min value="0" /> <max value="1" /> <base> <path value="Element.id" /> <min value="0" /> <max value="1" /> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="id" /> </extension> <code value="http://hl7.org/fhirpath/System.String" /> </type> <condition value="ele-1" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Extension.extension"> <path value="Extension.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 managable, 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="2" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Extension.extension:key"> <path value="Extension.extension" /> <sliceName value="key" /> <short value="Unique identifier so additional bindings to be matched across profiles" /> <definition value="An Extension" /> <min value="0" /> <max value="1" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:key.id"> <path value="Extension.extension.id" /> <representation value="xmlAttr" /> <short value="Unique id for inter-element referencing" /> <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." /> <min value="0" /> <max value="1" /> <base> <path value="Element.id" /> <min value="0" /> <max value="1" /> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="id" /> </extension> <code value="http://hl7.org/fhirpath/System.String" /> </type> <condition value="ele-1" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Extension.extension:key.extension"> <path value="Extension.extension.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="Extension" /> <definition value="An Extension" /> <min value="0" /> <max value="0" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:key.url"> <path value="Extension.extension.url" /> <representation value="xmlAttr" /> <short value="identifies the meaning of the extension" /> <definition value="Source of the definition for the extension code - a logical name or a URL." /> <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.url" /> <min value="1" /> <max value="1" /> </base> <type> <code value="uri" /> </type> <fixedUri value="key" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Extension.extension:key.value[x]"> <path value="Extension.extension.value[x]" /> <short value="Value of extension" /> <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list)." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.value[x]" /> <min value="0" /> <max value="1" /> </base> <type> <code value="id" /> </type> <condition value="ext-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())" /> <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="Extension.extension:purpose"> <path value="Extension.extension" /> <sliceName value="purpose" /> <short value="How the binding is used" /> <definition value="An Extension" /> <min value="1" /> <max value="1" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:purpose.id"> <path value="Extension.extension.id" /> <representation value="xmlAttr" /> <short value="Unique id for inter-element referencing" /> <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." /> <min value="0" /> <max value="1" /> <base> <path value="Element.id" /> <min value="0" /> <max value="1" /> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="id" /> </extension> <code value="http://hl7.org/fhirpath/System.String" /> </type> <condition value="ele-1" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Extension.extension:purpose.extension"> <path value="Extension.extension.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="Extension" /> <definition value="An Extension" /> <min value="0" /> <max value="0" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:purpose.url"> <path value="Extension.extension.url" /> <representation value="xmlAttr" /> <short value="identifies the meaning of the extension" /> <definition value="Source of the definition for the extension code - a logical name or a URL." /> <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.url" /> <min value="1" /> <max value="1" /> </base> <type> <code value="uri" /> </type> <fixedUri value="purpose" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Extension.extension:purpose.value[x]"> <path value="Extension.extension.value[x]" /> <short value="Value of extension" /> <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list)." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.value[x]" /> <min value="0" /> <max value="1" /> </base> <type> <code value="code" /> </type> <condition value="ext-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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> <binding> <strength value="required" /> <valueSet value="http://hl7.org/fhir/tools/ValueSet/additional-binding-purpose" /> </binding> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Extension.extension:valueSet"> <path value="Extension.extension" /> <sliceName value="valueSet" /> <short value="The valueSet for the binding" /> <definition value="An Extension" /> <min value="1" /> <max value="1" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:valueSet.id"> <path value="Extension.extension.id" /> <representation value="xmlAttr" /> <short value="Unique id for inter-element referencing" /> <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." /> <min value="0" /> <max value="1" /> <base> <path value="Element.id" /> <min value="0" /> <max value="1" /> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="id" /> </extension> <code value="http://hl7.org/fhirpath/System.String" /> </type> <condition value="ele-1" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Extension.extension:valueSet.extension"> <path value="Extension.extension.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="Extension" /> <definition value="An Extension" /> <min value="0" /> <max value="0" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:valueSet.url"> <path value="Extension.extension.url" /> <representation value="xmlAttr" /> <short value="identifies the meaning of the extension" /> <definition value="Source of the definition for the extension code - a logical name or a URL." /> <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.url" /> <min value="1" /> <max value="1" /> </base> <type> <code value="uri" /> </type> <fixedUri value="valueSet" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Extension.extension:valueSet.value[x]"> <path value="Extension.extension.value[x]" /> <short value="Value of extension" /> <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list)." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.value[x]" /> <min value="0" /> <max value="1" /> </base> <type> <code value="canonical" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/ValueSet" /> </type> <condition value="ext-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())" /> <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="Extension.extension:documentation"> <path value="Extension.extension" /> <sliceName value="documentation" /> <short value="Documentation for this binding" /> <definition value="An Extension" /> <min value="0" /> <max value="1" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:documentation.id"> <path value="Extension.extension.id" /> <representation value="xmlAttr" /> <short value="Unique id for inter-element referencing" /> <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." /> <min value="0" /> <max value="1" /> <base> <path value="Element.id" /> <min value="0" /> <max value="1" /> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="id" /> </extension> <code value="http://hl7.org/fhirpath/System.String" /> </type> <condition value="ele-1" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Extension.extension:documentation.extension"> <path value="Extension.extension.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="Extension" /> <definition value="An Extension" /> <min value="0" /> <max value="0" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:documentation.url"> <path value="Extension.extension.url" /> <representation value="xmlAttr" /> <short value="identifies the meaning of the extension" /> <definition value="Source of the definition for the extension code - a logical name or a URL." /> <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.url" /> <min value="1" /> <max value="1" /> </base> <type> <code value="uri" /> </type> <fixedUri value="documentation" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Extension.extension:documentation.value[x]"> <path value="Extension.extension.value[x]" /> <short value="Value of extension" /> <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list)." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.value[x]" /> <min value="0" /> <max value="1" /> </base> <type> <code value="markdown" /> </type> <condition value="ext-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())" /> <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="Extension.extension:shortDoco"> <path value="Extension.extension" /> <sliceName value="shortDoco" /> <short value="Short doco for this binding - used in dense table views" /> <definition value="An Extension" /> <min value="0" /> <max value="1" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:shortDoco.id"> <path value="Extension.extension.id" /> <representation value="xmlAttr" /> <short value="Unique id for inter-element referencing" /> <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." /> <min value="0" /> <max value="1" /> <base> <path value="Element.id" /> <min value="0" /> <max value="1" /> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="id" /> </extension> <code value="http://hl7.org/fhirpath/System.String" /> </type> <condition value="ele-1" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Extension.extension:shortDoco.extension"> <path value="Extension.extension.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="Extension" /> <definition value="An Extension" /> <min value="0" /> <max value="0" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:shortDoco.url"> <path value="Extension.extension.url" /> <representation value="xmlAttr" /> <short value="identifies the meaning of the extension" /> <definition value="Source of the definition for the extension code - a logical name or a URL." /> <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.url" /> <min value="1" /> <max value="1" /> </base> <type> <code value="uri" /> </type> <fixedUri value="shortDoco" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Extension.extension:shortDoco.value[x]"> <path value="Extension.extension.value[x]" /> <short value="Value of extension" /> <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list)." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.value[x]" /> <min value="0" /> <max value="1" /> </base> <type> <code value="string" /> </type> <condition value="ext-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())" /> <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="Extension.extension:usage"> <path value="Extension.extension" /> <sliceName value="usage" /> <short value="Definition of a context in which this binding applies" /> <definition value="Definition of a context in which this binding applies. This SHOULD be present for purpose=conformance to limit the scope of the conformance claim." /> <comment value="Usage context might be a jurisdiction, or some other clearly defined context of operation. Note that if the context is not clear, then implementers will not be able to determinate whether the binding applies." /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:usage.id"> <path value="Extension.extension.id" /> <representation value="xmlAttr" /> <short value="Unique id for inter-element referencing" /> <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." /> <min value="0" /> <max value="1" /> <base> <path value="Element.id" /> <min value="0" /> <max value="1" /> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="id" /> </extension> <code value="http://hl7.org/fhirpath/System.String" /> </type> <condition value="ele-1" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Extension.extension:usage.extension"> <path value="Extension.extension.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="Extension" /> <definition value="An Extension" /> <min value="0" /> <max value="0" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:usage.url"> <path value="Extension.extension.url" /> <representation value="xmlAttr" /> <short value="identifies the meaning of the extension" /> <definition value="Source of the definition for the extension code - a logical name or a URL." /> <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.url" /> <min value="1" /> <max value="1" /> </base> <type> <code value="uri" /> </type> <fixedUri value="usage" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Extension.extension:usage.value[x]"> <path value="Extension.extension.value[x]" /> <short value="Value of extension" /> <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list)." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.value[x]" /> <min value="0" /> <max value="1" /> </base> <type> <code value="UsageContext" /> </type> <condition value="ext-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())" /> <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="Extension.extension:any"> <path value="Extension.extension" /> <sliceName value="any" /> <short value="Whether the binding applies to all repeats, or just to any one of the repeats" /> <definition value="An Extension" /> <comment value="has no meaning if the element doesn't repeat" /> <min value="0" /> <max value="1" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:any.id"> <path value="Extension.extension.id" /> <representation value="xmlAttr" /> <short value="Unique id for inter-element referencing" /> <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." /> <min value="0" /> <max value="1" /> <base> <path value="Element.id" /> <min value="0" /> <max value="1" /> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="id" /> </extension> <code value="http://hl7.org/fhirpath/System.String" /> </type> <condition value="ele-1" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Extension.extension:any.extension"> <path value="Extension.extension.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="Extension" /> <definition value="An Extension" /> <min value="0" /> <max value="0" /> <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())" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="ext-1" /> <severity value="error" /> <human value="Must have either extensions or value[x], not both" /> <expression value="extension.exists() != value.exists()" /> <source value="http://hl7.org/fhir/StructureDefinition/Extension" /> </constraint> <isModifier value="false" /> <isSummary value="false" /> </element> <element id="Extension.extension:any.url"> <path value="Extension.extension.url" /> <representation value="xmlAttr" /> <short value="identifies the meaning of the extension" /> <definition value="Source of the definition for the extension code - a logical name or a URL." /> <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.url" /> <min value="1" /> <max value="1" /> </base> <type> <code value="uri" /> </type> <fixedUri value="any" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Extension.extension:any.value[x]"> <path value="Extension.extension.value[x]" /> <short value="Value of extension" /> <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list)." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.value[x]" /> <min value="0" /> <max value="1" /> </base> <type> <code value="boolean" /> </type> <condition value="ext-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())" /> <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="Extension.url"> <path value="Extension.url" /> <representation value="xmlAttr" /> <short value="identifies the meaning of the extension" /> <definition value="Source of the definition for the extension code - a logical name or a URL." /> <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." /> <min value="1" /> <max value="1" /> <base> <path value="Extension.url" /> <min value="1" /> <max value="1" /> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="uri" /> </extension> <code value="http://hl7.org/fhirpath/System.String" /> </type> <fixedUri value="http://hl7.org/fhir/tools/StructureDefinition/additional-binding" /> <isModifier value="false" /> <isSummary value="false" /> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <short value="Value of extension" /> <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list)." /> <min value="0" /> <max value="0" /> <base> <path value="Extension.value[x]" /> <min value="0" /> <max value="1" /> </base> <type> <code value="base64Binary" /> </type> <type> <code value="boolean" /> </type> <type> <code value="canonical" /> </type> <type> <code value="code" /> </type> <type> <code value="date" /> </type> <type> <code value="dateTime" /> </type> <type> <code value="decimal" /> </type> <type> <code value="id" /> </type> <type> <code value="instant" /> </type> <type> <code value="integer" /> </type> <type> <code value="integer64" /> </type> <type> <code value="markdown" /> </type> <type> <code value="oid" /> </type> <type> <code value="positiveInt" /> </type> <type> <code value="string" /> </type> <type> <code value="time" /> </type> <type> <code value="unsignedInt" /> </type> <type> <code value="uri" /> </type> <type> <code value="url" /> </type> <type> <code value="uuid" /> </type> <type> <code value="Address" /> </type> <type> <code value="Age" /> </type> <type> <code value="Annotation" /> </type> <type> <code value="Attachment" /> </type> <type> <code value="CodeableConcept" /> </type> <type> <code value="CodeableReference" /> </type> <type> <code value="Coding" /> </type> <type> <code value="ContactPoint" /> </type> <type> <code value="Count" /> </type> <type> <code value="Distance" /> </type> <type> <code value="Duration" /> </type> <type> <code value="HumanName" /> </type> <type> <code value="Identifier" /> </type> <type> <code value="Money" /> </type> <type> <code value="Period" /> </type> <type> <code value="Quantity" /> </type> <type> <code value="Range" /> </type> <type> <code value="Ratio" /> </type> <type> <code value="RatioRange" /> </type> <type> <code value="Reference" /> </type> <type> <code value="SampledData" /> </type> <type> <code value="Signature" /> </type> <type> <code value="Timing" /> </type> <type> <code value="ContactDetail" /> </type> <type> <code value="DataRequirement" /> </type> <type> <code value="Expression" /> </type> <type> <code value="ParameterDefinition" /> </type> <type> <code value="RelatedArtifact" /> </type> <type> <code value="TriggerDefinition" /> </type> <type> <code value="UsageContext" /> </type> <type> <code value="Availability" /> </type> <type> <code value="ExtendedContactDetail" /> </type> <type> <code value="Dosage" /> </type> <type> <code value="Meta" /> </type> <condition value="ext-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())" /> <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> </snapshot> <differential> <element id="Extension"> <path value="Extension" /> <short value="Additional Binding" /> <definition value="Additional bindings applied to bindable elements." /> <min value="0" /> <max value="*" /> <constraint> <key value="ext-ab-1" /> <severity value="warning" /> <human value="Additional Bindings SHOULD have a key to allow a binding to be constrained." /> <expression value="extension.where(url='key').exists()" /> </constraint> </element> <element id="Extension.extension:key"> <path value="Extension.extension" /> <sliceName value="key" /> <short value="Unique identifier so additional bindings to be matched across profiles" /> <min value="0" /> <max value="1" /> <type> <code value="Extension" /> </type> </element> <element id="Extension.extension:key.extension"> <path value="Extension.extension.extension" /> <max value="0" /> </element> <element id="Extension.extension:key.url"> <path value="Extension.extension.url" /> <type> <code value="uri" /> </type> <fixedUri value="key" /> </element> <element id="Extension.extension:key.value[x]"> <path value="Extension.extension.value[x]" /> <min value="1" /> <type> <code value="id" /> </type> </element> <element id="Extension.extension:purpose"> <path value="Extension.extension" /> <sliceName value="purpose" /> <short value="How the binding is used" /> <min value="1" /> <max value="1" /> <type> <code value="Extension" /> </type> </element> <element id="Extension.extension:purpose.extension"> <path value="Extension.extension.extension" /> <max value="0" /> </element> <element id="Extension.extension:purpose.url"> <path value="Extension.extension.url" /> <type> <code value="uri" /> </type> <fixedUri value="purpose" /> </element> <element id="Extension.extension:purpose.value[x]"> <path value="Extension.extension.value[x]" /> <min value="1" /> <type> <code value="code" /> </type> <binding> <strength value="required" /> <valueSet value="http://hl7.org/fhir/tools/ValueSet/additional-binding-purpose" /> </binding> </element> <element id="Extension.extension:valueSet"> <path value="Extension.extension" /> <sliceName value="valueSet" /> <short value="The valueSet for the binding" /> <min value="1" /> <max value="1" /> <type> <code value="Extension" /> </type> </element> <element id="Extension.extension:valueSet.extension"> <path value="Extension.extension.extension" /> <max value="0" /> </element> <element id="Extension.extension:valueSet.url"> <path value="Extension.extension.url" /> <type> <code value="uri" /> </type> <fixedUri value="valueSet" /> </element> <element id="Extension.extension:valueSet.value[x]"> <path value="Extension.extension.value[x]" /> <min value="1" /> <type> <code value="canonical" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/ValueSet" /> </type> </element> <element id="Extension.extension:documentation"> <path value="Extension.extension" /> <sliceName value="documentation" /> <short value="Documentation for this binding" /> <min value="0" /> <max value="1" /> <type> <code value="Extension" /> </type> </element> <element id="Extension.extension:documentation.extension"> <path value="Extension.extension.extension" /> <max value="0" /> </element> <element id="Extension.extension:documentation.url"> <path value="Extension.extension.url" /> <type> <code value="uri" /> </type> <fixedUri value="documentation" /> </element> <element id="Extension.extension:documentation.value[x]"> <path value="Extension.extension.value[x]" /> <min value="1" /> <type> <code value="markdown" /> </type> </element> <element id="Extension.extension:shortDoco"> <path value="Extension.extension" /> <sliceName value="shortDoco" /> <short value="Short doco for this binding - used in dense table views" /> <min value="0" /> <max value="1" /> <type> <code value="Extension" /> </type> </element> <element id="Extension.extension:shortDoco.extension"> <path value="Extension.extension.extension" /> <max value="0" /> </element> <element id="Extension.extension:shortDoco.url"> <path value="Extension.extension.url" /> <type> <code value="uri" /> </type> <fixedUri value="shortDoco" /> </element> <element id="Extension.extension:shortDoco.value[x]"> <path value="Extension.extension.value[x]" /> <min value="1" /> <type> <code value="string" /> </type> </element> <element id="Extension.extension:usage"> <path value="Extension.extension" /> <sliceName value="usage" /> <short value="Definition of a context in which this binding applies" /> <definition value="Definition of a context in which this binding applies. This SHOULD be present for purpose=conformance to limit the scope of the conformance claim." /> <comment value="Usage context might be a jurisdiction, or some other clearly defined context of operation. Note that if the context is not clear, then implementers will not be able to determinate whether the binding applies." /> <min value="0" /> <max value="*" /> <type> <code value="Extension" /> </type> </element> <element id="Extension.extension:usage.extension"> <path value="Extension.extension.extension" /> <max value="0" /> </element> <element id="Extension.extension:usage.url"> <path value="Extension.extension.url" /> <type> <code value="uri" /> </type> <fixedUri value="usage" /> </element> <element id="Extension.extension:usage.value[x]"> <path value="Extension.extension.value[x]" /> <min value="1" /> <type> <code value="UsageContext" /> </type> </element> <element id="Extension.extension:any"> <path value="Extension.extension" /> <sliceName value="any" /> <short value="Whether the binding applies to all repeats, or just to any one of the repeats" /> <comment value="has no meaning if the element doesn't repeat" /> <min value="0" /> <max value="1" /> <type> <code value="Extension" /> </type> </element> <element id="Extension.extension:any.extension"> <path value="Extension.extension.extension" /> <max value="0" /> </element> <element id="Extension.extension:any.url"> <path value="Extension.extension.url" /> <type> <code value="uri" /> </type> <fixedUri value="any" /> </element> <element id="Extension.extension:any.value[x]"> <path value="Extension.extension.value[x]" /> <min value="1" /> <type> <code value="boolean" /> </type> </element> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="http://hl7.org/fhir/tools/StructureDefinition/additional-binding" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <min value="0" /> <max value="0" /> </element> </differential> </StructureDefinition>

English

Generated Narrative: StructureDefinition additional-binding

Name	Card.	Type	Description & Constraints
Extension	0..*	Extension	Additional Binding ext-ab-1: Additional Bindings SHOULD have a key to allow a binding to be constrained.
Slices for extension			Content/Rules for all slices
extension:key	0..1	Extension	Unique identifier so additional bindings to be matched across profiles
extension	0 .. 0
url	1 .. 1	uri	"key"
value[x]	1..1	id	Value of extension
extension:purpose	1..1	Extension	How the binding is used
extension	0 .. 0
url	1 .. 1	uri	"purpose"
value[x]	1..1	code	Value of extension Binding: Additional Binding Purpose ValueSet (required)
extension:valueSet	1..1	Extension	The valueSet for the binding
extension	0 .. 0
url	1 .. 1	uri	"valueSet"
value[x]	1..1	canonical(ValueSet)	Value of extension
extension:documentation	0..1	Extension	Documentation for this binding
extension	0 .. 0
url	1 .. 1	uri	"documentation"
value[x]	1..1	markdown	Value of extension
extension:shortDoco	0..1	Extension	Short doco for this binding - used in dense table views
extension	0 .. 0
url	1 .. 1	uri	"shortDoco"
value[x]	1..1	string	Value of extension
extension:usage	0..*	Extension	Definition of a context in which this binding applies
extension	0 .. 0
url	1 .. 1	uri	"usage"
value[x]	1..1	UsageContext	Value of extension
extension:any	0..1	Extension	Whether the binding applies to all repeats, or just to any one of the repeats
extension	0 .. 0
url	1 .. 1	uri	"any"
value[x]	1..1	boolean	Value of extension
url	1 .. 1	uri	"http://hl7.org/fhir/tools/StructureDefinition/additional-binding"
value[x]	0 .. 0
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Generated Narrative: StructureDefinition additional-binding

Name	Card.	Type	Description & Constraints
Extension	0..*	Extension	Additional Binding ext-ab-1: Additional Bindings SHOULD have a key to allow a binding to be constrained.
Slices for extension			Content/Rules for all slices
extension:key	0..1	Extension	Unique identifier so additional bindings to be matched across profiles
extension	0 .. 0
url	1 .. 1	uri	"key"
value[x]	1..1	id	Value of extension
extension:purpose	1..1	Extension	How the binding is used
extension	0 .. 0
url	1 .. 1	uri	"purpose"
value[x]	1..1	code	Value of extension Binding: Additional Binding Purpose ValueSet (required)
extension:valueSet	1..1	Extension	The valueSet for the binding
extension	0 .. 0
url	1 .. 1	uri	"valueSet"
value[x]	1..1	canonical(ValueSet)	Value of extension
extension:documentation	0..1	Extension	Documentation for this binding
extension	0 .. 0
url	1 .. 1	uri	"documentation"
value[x]	1..1	markdown	Value of extension
extension:shortDoco	0..1	Extension	Short doco for this binding - used in dense table views
extension	0 .. 0
url	1 .. 1	uri	"shortDoco"
value[x]	1..1	string	Value of extension
extension:usage	0..*	Extension	Definition of a context in which this binding applies
extension	0 .. 0
url	1 .. 1	uri	"usage"
value[x]	1..1	UsageContext	Value of extension
extension:any	0..1	Extension	Whether the binding applies to all repeats, or just to any one of the repeats
extension	0 .. 0
url	1 .. 1	uri	"any"
value[x]	1..1	boolean	Value of extension
url	1 .. 1	uri	"http://hl7.org/fhir/tools/StructureDefinition/additional-binding"
value[x]	0 .. 0
Documentation for this format