This page is part of the FHIR Specification (v1.6.0: STU 3 Ballot 4). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R4B R4 R3
Code system resource
<StructureDefinition xmlns="http://hl7.org/fhir"> <id value="valueset-system"/> <url value="http://hl7.org/fhir/StructureDefinition/valueset-system"/> <name value="Code system resource"/> <status value="draft"/> <publisher value="HL7"/> <date value="2016-08-11T17:02:54+10:00"/> <description value="Allows a direct reference to the code system for FHIR query."/> <fhirVersion value="1.6.0"/> <mapping> <identity value="rim"/> <uri value="http://hl7.org/v3"/> <name value="RIM Mapping"/> </mapping> <kind value="complex-type"/> <abstract value="false"/> <contextType value="resource"/> <context value="ValueSet.compose.include.system"/> <type value="Extension"/> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension"/> <derivation value="constraint"/> <snapshot> <element id="Extension:codesystemresource"> <path value="Extension"/> <short value="Code system resource"/> <definition value="Allows a direct reference to the code system for FHIR query."/> <min value="0"/> <max value="1"/> <base> <path value="Extension"/> <min value="0"/> <max value="*"/> </base> <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="children().count() > id.count()"/> <xpath value="@value|f:*|h:div"/> </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')])"/> </constraint> <isModifier value="false"/> </element> <element id="Extension:codesystemresource.id"> <path value="Extension.id"/> <representation value="xmlAttr"/> <short value="xml:id (or equivalent in JSON)"/> <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="*"/> </base> <type> <code value="string"/> </type> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="Extension:codesystemresource.extension:extension"> <path value="Extension.extension"/> <name value="extension"/> <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> </element> <element id="Extension:codesystemresource.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."/> <comments 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="http://hl7.org/fhir/StructureDefinition/valueset-system"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="Extension:codesystemresource.valueReference"> <path value="Extension.valueReference"/> <short value="A set of codes drawn from one or more code systems"/> <definition value="A code system resource specifies a set of codes drawn from one or more code systems."/> <min value="1"/> <max value="1"/> <base> <path value="Extension.value[x]"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Reference"/> <profile value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> </type> <mapping> <identity value="rim"/> <map value="Entity. Role, or Act"/> </mapping> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> <mapping> <identity value="objimpl"/> <map value="BaseConformance"/> </mapping> <mapping> <identity value="w5"/> <map value="conformance.terminology"/> </mapping> </element> </snapshot> <differential> <element id="Extension:codesystemresource"> <path value="Extension"/> <short value="Code system resource"/> <definition value="Allows a direct reference to the code system for FHIR query."/> <min value="0"/> <max value="1"/> <isModifier value="false"/> </element> <element id="Extension:codesystemresource.extension:extension"> <path value="Extension.extension"/> <name value="extension"/> <max value="0"/> </element> <element id="Extension:codesystemresource.url"> <path value="Extension.url"/> <type> <code value="uri"/> </type> <fixedUri value="http://hl7.org/fhir/StructureDefinition/valueset-system"/> </element> <element id="Extension:codesystemresource.value[x]"> <path value="Extension.value[x]"/> <min value="1"/> <type> <code value="Reference"/> <profile value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> </type> </element> </differential> </StructureDefinition>
Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.