Guide d'implémentation du médicament
0.1.0 - ci-build
Guide d'implémentation du médicament
0.1.0 - ci-build
Guide d'implémentation du médicament - Local Development build (v0.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions
| Draft as of 2024-11-13 |
XML representation of the FrSimpleQuantityUcum data type profile.
<StructureDefinition xmlns="http://hl7.org/fhir">
<id value="FrSimpleQuantityUcum"/>
<text>
<status value="extensions"/>
<div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: StructureDefinition FrSimpleQuantityUcum</b></p><a name="FrSimpleQuantityUcum"> </a><a name="hcFrSimpleQuantityUcum"> </a><a name="FrSimpleQuantityUcum-en-US"> </a><table border="0" cellpadding="0" cellspacing="0" style="border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;"><tr style="border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top"><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the element can appear in the instance">Card.</a></th><th style="width: 100px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description & Constraints</a><span style="float: right"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/></a></span></th></tr><tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-FrSimpleQuantityUcum-definitions.html#Quantity" title="The comparator is not used on a SimpleQuantity. The unit SHALL be a UCUM code.">Quantity</a><a name="Quantity"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#SimpleQuantity">SimpleQuantity</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">A fixed quantity (no comparator) with UCUM unit<br/><span style="font-weight:bold">ele-1: </span>All FHIR elements must have a @value or children</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-FrSimpleQuantityUcum-definitions.html#Quantity.system" title="UCUM requiered for the identification of the system that provides the coded form of the unit.">system</a><a name="Quantity.system"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..<span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#uri">uri</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">System that defines coded unit form</span><br/><span style="font-weight:bold">Fixed Value: </span><span style="color: darkgreen">http://unitsofmeasure.org</span></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-FrSimpleQuantityUcum-definitions.html#Quantity.code">code</a><a name="Quantity.code"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..<span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Coded form of the unit</span></td></tr>
<tr><td colspan="5" class="hierarchy"><br/><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
</text>
<url
value="https://hl7.fr/fhir/fr/medication/StructureDefinition/FrSimpleQuantityUcum"/>
<version value="0.1.0"/>
<name value="FrSimpleQuantityUcum"/>
<title value="SimpleQuantity with UCUM quantity unit"/>
<status value="draft"/>
<date value="2024-11-13T15:16:58+00:00"/>
<publisher value="Interop'Santé"/>
<contact>
<name value="Interop'Santé"/>
<telecom>
<system value="url"/>
<value value="http://interopsante.org/"/>
</telecom>
</contact>
<description value="simple quantity datatype requiring a UCUM unit"/>
<fhirVersion value="4.0.1"/>
<mapping>
<identity value="v2"/>
<uri value="http://hl7.org/v2"/>
<name value="HL7 v2 Mapping"/>
</mapping>
<mapping>
<identity value="rim"/>
<uri value="http://hl7.org/v3"/>
<name value="RIM Mapping"/>
</mapping>
<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) with UCUM unit"/>
<definition
value="The comparator is not used on a SimpleQuantity. The unit SHALL be a UCUM code."/>
<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="*"/>
<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>
<isModifier value="false"/>
<isSummary value="false"/>
<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>
<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>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="Quantity.value">
<path value="Quantity.value"/>
<short value="Numerical value (with implicit precision)"/>
<definition
value="The value of the measured amount. The value includes an implicit precision in the presentation of the value."/>
<comment
value="The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books)."/>
<requirements
value="Precision is handled implicitly in almost all cases of measurement."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Quantity.value"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="decimal"/>
</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())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="true"/>
<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"/>
<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"/>
<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="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="Unit representation"/>
<definition value="A human-readable form of the unit."/>
<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>
<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="false"/>
<isSummary value="true"/>
<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 that defines coded unit form"/>
<definition
value="UCUM requiered for the identification of the system that provides the coded form of the unit."/>
<requirements value="UCUM requiered."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="Quantity.system"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="uri"/>
</type>
<fixedUri value="http://unitsofmeasure.org"/>
<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"/>
<isModifier value="false"/>
<isSummary value="true"/>
<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="Coded form of the unit"/>
<definition
value="A computer processable form of the unit in some unit representation system."/>
<comment value="UCUM code required."/>
<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>
<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="false"/>
<isSummary value="true"/>
<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"/>
<short value="A fixed quantity (no comparator) with UCUM unit"/>
<definition
value="The comparator is not used on a SimpleQuantity. The unit SHALL be a UCUM code."/>
<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."/>
<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="Quantity"/>
</constraint>
</element>
<element id="Quantity.system">
<path value="Quantity.system"/>
<definition
value="UCUM requiered for the identification of the system that provides the coded form of the unit."/>
<requirements value="UCUM requiered."/>
<min value="1"/>
<fixedUri value="http://unitsofmeasure.org"/>
<mustSupport value="true"/>
</element>
<element id="Quantity.code">
<path value="Quantity.code"/>
<comment value="UCUM code required."/>
<min value="1"/>
</element>
</differential>
</StructureDefinition>