This page is part of the FHIR Specification (v3.2.0: R4 Ballot 1). 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
FHIR Infrastructure Work Group | Maturity Level: N/A | Ballot Status: Informative |
PQ-translation
<StructureDefinition xmlns="http://hl7.org/fhir"> <id value="iso21090-PQ-translation"/> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"> <valueCode value="fhir"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"> <valueInteger value="1"/> </extension> <url value="http://hl7.org/fhir/StructureDefinition/iso21090-PQ-translation"/> <name value="PQ-translation"/> <status value="draft"/> <date value="2012-06-24"/> <publisher value="Health Level Seven International (Modeling and Methodology)"/> <contact> <telecom> <system value="url"/> <value value="http://www.hl7.org/Special/committees/mnm"/> </telecom> </contact> <description value="An alternative representation of the same physical quantity expressed in a different unit from a different unit code system and possibly with a different value."/> <fhirVersion value="3.2.0"/> <mapping> <identity value="rim"/> <uri value="http://hl7.org/v3"/> <name value="RIM Mapping"/> </mapping> <kind value="complex-type"/> <abstract value="false"/> <contextType value="datatype"/> <context value="Quantity"/> <type value="Extension"/> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension"/> <derivation value="constraint"/> <snapshot> <element id="Extension"> <path value="Extension"/> <short value="Same quantity with different units"/> <definition value="An alternative representation of the same physical quantity expressed in a different unit from a different unit code system and possibly with a different value."/> <comment value="It is not necessary for information processing entities to check and enforce that the translations are valid translations of the base unit, but they are allowed to do so, and to reject instances where the translations are not valid. NOTE Translations are allowed to contain other representations in UCUM units, but there is generally no point to this as it is possible to convert from one UCUM form to another."/> <min value="0"/> <max value="*"/> <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="hasValue() | (children().count() > id.count())"/> <xpath value="@value|f:*|h:div"/> <source value="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="Extension"/> </constraint> <mapping> <identity value="rim"/> <map value="PQ.translation"/> </mapping> </element> <element id="Extension.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="1"/> </base> <type> <code value="string"/> </type> <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="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.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> <code value="uri"/> </type> <fixedUri value="http://hl7.org/fhir/StructureDefinition/iso21090-PQ-translation"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="Extension.valueQuantity"> <path value="Extension.valueQuantity"/> <short value="Value of extension"/> <definition value="Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list)."/> <min value="0"/> <max value="1"/> <base> <path value="Extension.value[x]"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Quantity"/> </type> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> </snapshot> <differential> <element id="Extension"> <path value="Extension"/> <short value="Same quantity with different units"/> <definition value="An alternative representation of the same physical quantity expressed in a different unit from a different unit code system and possibly with a different value."/> <comment value="It is not necessary for information processing entities to check and enforce that the translations are valid translations of the base unit, but they are allowed to do so, and to reject instances where the translations are not valid. NOTE Translations are allowed to contain other representations in UCUM units, but there is generally no point to this as it is possible to convert from one UCUM form to another."/> <min value="0"/> <max value="*"/> <mapping> <identity value="rim"/> <map value="PQ.translation"/> </mapping> </element> <element id="Extension.extension"> <path value="Extension.extension"/> <max value="0"/> </element> <element id="Extension.url"> <path value="Extension.url"/> <type> <code value="uri"/> </type> <fixedUri value="http://hl7.org/fhir/StructureDefinition/iso21090-PQ-translation"/> </element> <element id="Extension.valueQuantity"> <path value="Extension.valueQuantity"/> <type> <code value="Quantity"/> </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.