<status value="draft" /> <date value="2021-10-18" /> <publisher value="InterOp'Santé - FRANCE" /> <contact> <telecom> <system value="email" /> <value value="fhir@interopsante.org" /> </telecom> </contact> <description value="Ratio with numerator and denominator unit UCUM encoded" /> <copyright value="Interop'Santé 2021" /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <type value="Ratio" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Ratio" /> <derivation value="constraint" /> <snapshot> <element id="Ratio"> <path value="Ratio" /> <short value="A ratio of two precise Quantity values - a numerator and a denominator" /> <definition value="A relationship of two Quantity values - expressed as a precise numerator and a precise denominator." /> <comment value="The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio." /> <min value="0" /> <max value="*" /> <base> <path value="Ratio" /> <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() or (children().count() > id.count())" /> <xpath value="@value|f:*|h:div" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="rat-1" /> <severity value="error" /> <human value="Numerator and denominator SHALL both be present, or both are absent. If both are absent, there SHALL be some extension present" /> <expression value="(numerator.empty() xor denominator.exists()) and (numerator.exists() or extension.exists())" /> <xpath value="(count(f:numerator) = count(f:denominator)) and ((count(f:numerator) > 0) or (count(f:extension) > 0))" /> <source value="http://hl7.org/fhir/StructureDefinition/Ratio" /> </constraint> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="N/A" /> </mapping> <mapping> <identity value="rim" /> <map value="RTO" /> </mapping> </element> <element id="Ratio.id"> <path value="Ratio.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> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Ratio.extension"> <path value="Ratio.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> <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> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Ratio.numerator"> <path value="Ratio.numerator" /> <short value="Numerator with UCUM unit" /> <definition value="unit of measure SHALL be UCUM encoded" /> <comment value="The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use explicitely excludes the use of the simpleQuantity "comparator" element." /> <min value="0" /> <max value="1" /> <base> <path value="Ratio.numerator" /> <min value="0" /> <max value="1" /> </base> <type> <code value="Quantity" /> <profile value="http://interopsante.org/fhir/StructureDefinition/FrSimpleQuantityUcum" /> </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="qty-3" /> <severity value="error" /> <human value="If a code for the unit is present, the system SHALL also be present" /> <expression value="code.empty() or system.exists()" /> <xpath value="not(exists(f:code)) or exists(f:system)" /> <source value="http://hl7.org/fhir/StructureDefinition/Quantity" /> </constraint> <constraint> <key value="sqty-1" /> <severity value="warning" /> <human value="The comparator is not used on a SimpleQuantity" /> <expression value="comparator.empty()" /> <xpath value="not(exists(f:comparator))" /> <source value="Quantity" /> </constraint> <isSummary value="true" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="SN (see also Range) or CQ" /> </mapping> <mapping> <identity value="rim" /> <map value="PQ, IVL<PQ>, MO, CO, depending on the values" /> </mapping> <mapping> <identity value="rim" /> <map value=".numerator" /> </mapping> </element> <element id="Ratio.denominator"> <path value="Ratio.denominator" /> <short value="Denominator with UCUM unit" /> <definition value="unit of measure SHALL be UCUM encoded" /> <comment value="The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use explicitely excludes the use of the simpleQuantity "comparator" element." /> <min value="0" /> <max value="1" /> <base> <path value="Ratio.denominator" /> <min value="0" /> <max value="1" /> </base> <type> <code value="Quantity" /> <profile value="http://interopsante.org/fhir/StructureDefinition/FrSimpleQuantityUcum" /> </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="qty-3" /> <severity value="error" /> <human value="If a code for the unit is present, the system SHALL also be present" /> <expression value="code.empty() or system.exists()" /> <xpath value="not(exists(f:code)) or exists(f:system)" /> <source value="http://hl7.org/fhir/StructureDefinition/Quantity" /> </constraint> <constraint> <key value="sqty-1" /> <severity value="warning" /> <human value="The comparator is not used on a SimpleQuantity" /> <expression value="comparator.empty()" /> <xpath value="not(exists(f:comparator))" /> <source value="Quantity" /> </constraint> <isSummary value="true" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="SN (see also Range) or CQ" /> </mapping> <mapping> <identity value="rim" /> <map value="PQ, IVL<PQ>, MO, CO, depending on the values" /> </mapping> <mapping> <identity value="rim" /> <map value=".denominator" /> </mapping> </element> </snapshot> <differential> <element id="Ratio"> <path value="Ratio" /> <short value="A ratio of two precise Quantity values - a numerator and a denominator" /> <definition value="A relationship of two Quantity values - expressed as a precise numerator and a precise denominator." /> </element> <element id="Ratio.numerator"> <path value="Ratio.numerator" /> <short value="Numerator with UCUM unit" /> <definition value="unit of measure SHALL be UCUM encoded" /> <type> <code value="Quantity" /> <profile value="http://interopsante.org/fhir/StructureDefinition/FrSimpleQuantityUcum" /> </type> </element> <element id="Ratio.denominator"> <path value="Ratio.denominator" /> <short value="Denominator with UCUM unit" /> <definition value="unit of measure SHALL be UCUM encoded" /> <type> <code value="Quantity" /> <profile value="http://interopsante.org/fhir/StructureDefinition/FrSimpleQuantityUcum" /> </type> </element> </differential> </StructureDefinition>