Guide d'implémentation du médicament
0.1.0 - ci-build FRANCE

Guide d'implémentation du médicament, publié par Interop'Santé. Ce guide n'est pas une publication autorisée ; C'est la version en intégration continue pour la version 0.1.0 construite par le CI Build FHIR (HL7® FHIR® Standard). Cette version est basée sur le contenu actuel de https://github.com/Interop-Sante/hl7.fhir.fr.medication/ et change régulièrement. Voir le répertoire des versions publiées

## Data Type Profile: FrSimpleQuantityMedication - XML Profile

Draft as of 2026-05-19

XML representation of the FrSimpleQuantityMedication data type profile.

Raw xml | Download

    <StructureDefinition xmlns="http://hl7.org/fhir">
      <id value="FrSimpleQuantityMedication"/>
      <text>
        <status value="extensions"/>
        <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Narratif généré : DéfinitionStructure FrSimpleQuantityMedication</b></p><a name="FrSimpleQuantityMedication"> </a><a name="hcFrSimpleQuantityMedication"> </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 : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Le nom logique de l'élément">Nom</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Informations sur l'utilisation de l'élément">Drapeaux</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Nombre minimum et maximum de fois que l'élément peut apparaître dans l'instance">Card.</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px; width: 100px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Référence au type de l'élément">Type</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Informations supplémentaires sur l'élément">Description et contraintes</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 : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck0.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-FrSimpleQuantityMedication-definitions.html#Quantity" title="The comparator is not used on a SimpleQuantity. The code SHALL be a UCUM or EDQM code if used.">Quantity</a><a name="Quantity"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold; color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold; color: #301212; background-color: #fdf4f4;" href="http://hl7.org/fhir/R4/conformance-rules.html#constraints" title="Cet élément a ou est affecté par des contraintes ( fr-med-smpl-quant-1, fr-med-smpl-quant-2 )">C</a></td><td style="vertical-align: top; text-align : var(--ig-left,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 : var(--ig-left,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 : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">A fixed quantity (no comparator) with UCUM or EDQM code or no code<br class="constraint"/><span title="null" class="constraint">Constraints: </span><span style="font-weight:bold" title="system SHALL be UCUM or EDQM if code is used" class="constraint">fr-med-smpl-quant-1</span><span title="null" class="constraint">, </span><span style="font-weight:bold" title="system SHALL not be used if code is not used" class="constraint">fr-med-smpl-quant-2</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="Légende pour ce format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/> Documentation pour ce format</a></td></tr></table></div>
      </text>
      <url
           value="https://hl7.fr/ig/fhir/medication/StructureDefinition/FrSimpleQuantityMedication"/>
      <version value="0.1.0"/>
      <name value="FrSimpleQuantityMedication"/>
      <title value="SimpleQuantity with UCUM or EDQM codes or code not used"/>
      <status value="draft"/>
      <date value="2026-05-19T09:13:09+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 or EDQM code or no code (only unti)"/>
      <jurisdiction>
        <coding>
          <system value="urn:iso:std:iso:3166"/>
          <code value="FR"/>
          <display value="FRANCE"/>
        </coding>
      </jurisdiction>
      <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>
        <extension
                   url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version">
          <valueString value="4.0.1"/>
        </extension>
        <element id="Quantity">
          <path value="Quantity"/>
          <short
                 value="A fixed quantity (no comparator) with UCUM or EDQM code or no code"/>
          <definition
                      value="The comparator is not used on a SimpleQuantity. The code SHALL be a UCUM or EDQM code if used."/>
          <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 &quot;comparator&quot; 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() &gt; 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>
          <constraint>
            <key value="fr-med-smpl-quant-1"/>
            <severity value="error"/>
            <human value="system SHALL be UCUM or EDQM if code is used"/>
            <expression
                        value="code.exists() implies (system.exists() and (system = 'http://standardterms.edqm.eu' or system = 'http://unitsofmeasure.org'))"/>
            <source
                    value="https://hl7.fr/ig/fhir/medication/StructureDefinition/FrSimpleQuantityMedication"/>
          </constraint>
          <constraint>
            <key value="fr-med-smpl-quant-2"/>
            <severity value="error"/>
            <human value="system SHALL not be used if code is not used"/>
            <expression value="code.empty() implies system.empty()"/>
            <source
                    value="https://hl7.fr/ig/fhir/medication/StructureDefinition/FrSimpleQuantityMedication"/>
          </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&lt;PQ&gt;, 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() &gt; 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(.), &quot;value&quot;)])"/>
            <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() &gt; 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="&lt; | &lt;= | &gt;= | &gt; - 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 &lt;5ug/L or &gt;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() &gt; 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 &quot;Is Modifier&quot; 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() &gt; 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="The identification of the system that provides the coded form of the unit."/>
          <requirements
                        value="Need to know the system that defines the coded form of the unit."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Quantity.system"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="uri"/>
          </type>
          <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() &gt; 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="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="The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency.  The context of use may additionally require a code from a particular system."/>
          <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="0"/>
          <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() &gt; 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 or EDQM code or no code"/>
          <definition
                      value="The comparator is not used on a SimpleQuantity. The code SHALL be a UCUM or EDQM code if used."/>
          <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 &quot;comparator&quot; 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() &gt; id.count())"/>
            <xpath value="@value|f:*|h:div"/>
            <source value="Quantity"/>
          </constraint>
          <constraint>
            <key value="fr-med-smpl-quant-1"/>
            <severity value="error"/>
            <human value="system SHALL be UCUM or EDQM if code is used"/>
            <expression
                        value="code.exists() implies (system.exists() and (system = 'http://standardterms.edqm.eu' or system = 'http://unitsofmeasure.org'))"/>
            <source
                    value="https://hl7.fr/ig/fhir/medication/StructureDefinition/FrSimpleQuantityMedication"/>
          </constraint>
          <constraint>
            <key value="fr-med-smpl-quant-2"/>
            <severity value="error"/>
            <human value="system SHALL not be used if code is not used"/>
            <expression value="code.empty() implies system.empty()"/>
            <source
                    value="https://hl7.fr/ig/fhir/medication/StructureDefinition/FrSimpleQuantityMedication"/>
          </constraint>
        </element>
      </differential>
    </StructureDefinition>