<status value="active" /> <experimental value="false" /> <date value="2026-04-02" /> <publisher value="gematik GmbH" /> <description value="Quantity Datentyp für Dosage Informationen, der die Nutzung des VS DosageDoseQuantityDE vorgibt." /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <type value="Quantity" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" /> <derivation value="constraint" /> <snapshot> <element id="Quantity"> <path value="Quantity" /> <short value="A fixed quantity (no comparator)" /> <definition value="The comparator is not used on a SimpleQuantity" /> <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 may also restrict the values for the comparator." /> <min value="0" /> <max value="*" /> <base> <path value="Quantity" /> <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="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="error" /> <human value="The comparator is not used on a SimpleQuantity" /> <expression value="comparator.empty()" /> <xpath value="not(exists(f:comparator))" /> <source value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" /> </constraint> <isModifier value="false" /> <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> </element> <element id="Quantity.id"> <path value="Quantity.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="Quantity.extension"> <path value="Quantity.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="Quantity.value"> <path value="Quantity.value" /> <short value="Menge der Medikation" /> <definition value="The value of the measured amount. The value includes an implicit precision in the presentation of the value." /> <comment value="Begründung des Must-Support: Basisinformation zur Medikation" /> <requirements value="Precision is handled implicitly in almost all cases of measurement." /> <min value="1" /> <max value="1" /> <base> <path value="Quantity.value" /> <min value="0" /> <max value="1" /> </base> <type> <code value="decimal" /> </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> <mustSupport value="true" /> <isSummary value="true" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="SN.2 / CQ - N/A" /> </mapping> <mapping> <identity value="rim" /> <map value="PQ.value, CO.value, MO.value, IVL.high or IVL.low depending on the value" /> </mapping> </element> <element id="Quantity.comparator"> <path value="Quantity.comparator" /> <short value="< | <= | >= | > - how to understand the value" /> <definition value="Not allowed to be used in this context" /> <comment value="Note that FHIR strings SHALL NOT exceed 1MB in size" /> <requirements value="Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology." /> <min value="0" /> <max value="0" /> <base> <path value="Quantity.comparator" /> <min value="0" /> <max value="1" /> </base> <type> <code value="code" /> </type> <meaningWhenMissing value="If there is no comparator, then there is no modification of the value" /> <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> <isModifier value="true" /> <isModifierReason value="This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value" /> <isSummary value="true" /> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="QuantityComparator" /> </extension> <strength value="required" /> <description value="How the Quantity should be understood and represented." /> <valueSet value="http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1" /> </binding> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="SN.1 / CQ.1" /> </mapping> <mapping> <identity value="rim" /> <map value="IVL properties" /> </mapping> </element> <element id="Quantity.unit"> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true" /> </extension> <path value="Quantity.unit" /> <short value="Einheit der Medikation als String" /> <definition value="A human-readable form of the unit." /> <comment value="Begründung des Must-Support: Bereitstellung einer menschenlesbaren Darstellung der Einheit." /> <requirements value="There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms." /> <min value="0" /> <max value="1" /> <base> <path value="Quantity.unit" /> <min value="0" /> <max value="1" /> </base> <type> <code value="string" /> </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> <mustSupport value="true" /> <isSummary value="true" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="(see OBX.6 etc.) / CQ.2" /> </mapping> <mapping> <identity value="rim" /> <map value="PQ.unit" /> </mapping> </element> <element id="Quantity.system"> <path value="Quantity.system" /> <short value="System der Einheit" /> <definition value="The identification of the system that provides the coded form of the unit." /> <comment value="Begründung des Must-Support: Zur Interpretation des Codes ist die Angabe des Systems erforderlich." /> <requirements value="Need to know the system that defines the coded form of the unit." /> <min value="1" /> <max value="1" /> <base> <path value="Quantity.system" /> <min value="0" /> <max value="1" /> </base> <type> <code value="uri" /> </type> <condition value="ele-1" /> <condition value="qty-3" /> <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" /> <isSummary value="true" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="(see OBX.6 etc.) / CQ.2" /> </mapping> <mapping> <identity value="rim" /> <map value="CO.codeSystem, PQ.translation.codeSystem" /> </mapping> </element> <element id="Quantity.code"> <path value="Quantity.code" /> <short value="Code der Einheit" /> <definition value="A computer processable form of the unit in some unit representation system." /> <comment value="Begründung des Must-Support: Zur Interpretation der Menge ist der Code erforderlich." /> <requirements value="Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest." /> <min value="1" /> <max value="1" /> <base> <path value="Quantity.code" /> <min value="0" /> <max value="1" /> </base> <type> <code value="code" /> </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> <mustSupport value="true" /> <isSummary value="true" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="(see OBX.6 etc.) / CQ.2" /> </mapping> <mapping> <identity value="rim" /> <map value="PQ.code, MO.currency, PQ.translation.code" /> </mapping> </element> </snapshot> <differential> <element id="Quantity"> <path value="Quantity" /> <binding> <strength value="required" /> <valueSet value="http://ig.fhir.de/igs/medication/ValueSet/DosageDoseQuantityDE" /> </binding> </element> <element id="Quantity.value"> <path value="Quantity.value" /> <short value="Menge der Medikation" /> <comment value="Begründung des Must-Support: Basisinformation zur Medikation" /> <min value="1" /> <mustSupport value="true" /> </element> <element id="Quantity.unit"> <path value="Quantity.unit" /> <short value="Einheit der Medikation als String" /> <comment value="Begründung des Must-Support: Bereitstellung einer menschenlesbaren Darstellung der Einheit." /> <mustSupport value="true" /> </element> <element id="Quantity.system"> <path value="Quantity.system" /> <short value="System der Einheit" /> <comment value="Begründung des Must-Support: Zur Interpretation des Codes ist die Angabe des Systems erforderlich." /> <min value="1" /> <mustSupport value="true" /> </element> <element id="Quantity.code"> <path value="Quantity.code" /> <short value="Code der Einheit" /> <comment value="Begründung des Must-Support: Zur Interpretation der Menge ist der Code erforderlich." /> <min value="1" /> <mustSupport value="true" /> </element> </differential> </StructureDefinition>