Guide d'implémentation du médicament
0.1.0 - ci-build France flag

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

Data Type Profile: FrSimpleQuantityMedication - Detailed Descriptions

Draft as of 2025-08-21

Definitions for the FrSimpleQuantityMedication data type profile.

Guidance on how to interpret the contents of this table can be foundhere

0. Quantity
Définition

The comparator is not used on a SimpleQuantity. The code SHALL be a UCUM or EDQM code if used.


A measured amount (or an amount that can potentially be measured). Note that measured amounts include amounts that are not precisely quantified, including amounts involving arbitrary units and floating currencies.

ShortA fixed quantity (no comparator) with UCUM or EDQM code or no codeA measured or measurable amount
Commentaires

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.


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.

Control0..*
This element is affected by the following invariants: ele-1
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
fr-med-smpl-quant-1: system SHALL be UCUM or EDQM if code is used (code.exists() implies (system.exists() and (system = 'http://standardterms.edqm.eu' or system = 'http://unitsofmeasure.org')))
fr-med-smpl-quant-2: system SHALL not be used if code is not used (code.empty() implies system.empty())
qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
2. Quantity.comparator
Définition

Not allowed to be used in this context


How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value.

Short< | <= | >= | > - how to understand the value
Control0..01
BindingThe codes SHALL be taken from QuantityComparatorhttp://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1
(required to http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1)

How the Quantity should be understood and represented.

Typecode
Is Modifiertrue because 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
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Résumétrue
Requirements

Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.

Meaning if MissingIf there is no comparator, then there is no modification of the value
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

Guidance on how to interpret the contents of this table can be foundhere

0. Quantity
Définition

The comparator is not used on a SimpleQuantity. The code SHALL be a UCUM or EDQM code if used.

ShortA fixed quantity (no comparator) with UCUM or EDQM code or no code
Commentaires

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.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
fr-med-smpl-quant-1: system SHALL be UCUM or EDQM if code is used (code.exists() implies (system.exists() and (system = 'http://standardterms.edqm.eu' or system = 'http://unitsofmeasure.org')))
fr-med-smpl-quant-2: system SHALL not be used if code is not used (code.empty() implies system.empty())

Guidance on how to interpret the contents of this table can be foundhere

0. Quantity
Définition

The comparator is not used on a SimpleQuantity. The code SHALL be a UCUM or EDQM code if used.

ShortA fixed quantity (no comparator) with UCUM or EDQM code or no code
Commentaires

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.

Control0..*
This element is affected by the following invariants: ele-1
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
fr-med-smpl-quant-1: system SHALL be UCUM or EDQM if code is used (code.exists() implies (system.exists() and (system = 'http://standardterms.edqm.eu' or system = 'http://unitsofmeasure.org')))
fr-med-smpl-quant-2: system SHALL not be used if code is not used (code.empty() implies system.empty())
2. Quantity.id
Définition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Résuméfalse
4. Quantity.extension
Définition

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.

ShortAdditional content defined by implementations
Commentaires

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.

Control0..*
TypeExtension
Is Modifierfalse
Résuméfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Quantity.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 6. Quantity.value
    Définition

    The value of the measured amount. The value includes an implicit precision in the presentation of the value.

    ShortNumerical value (with implicit precision)
    Commentaires

    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).

    Control0..1
    Typedecimal
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Résumétrue
    Requirements

    Precision is handled implicitly in almost all cases of measurement.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    8. Quantity.comparator
    Définition

    Not allowed to be used in this context

    Short< | <= | >= | > - how to understand the value
    Control0..0
    BindingThe codes SHALL be taken from QuantityComparator
    (required to http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1)

    How the Quantity should be understood and represented.

    Typecode
    Is Modifiertrue because 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
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Résumétrue
    Requirements

    Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.

    Meaning if MissingIf there is no comparator, then there is no modification of the value
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    10. Quantity.unit
    Définition

    A human-readable form of the unit.

    ShortUnit representation
    Control0..1
    Typestring
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Résumétrue
    Requirements

    There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    12. Quantity.system
    Définition

    The identification of the system that provides the coded form of the unit.

    ShortSystem that defines coded unit form
    Control0..1
    This element is affected by the following invariants: qty-3
    Typeuri
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Résumétrue
    Requirements

    Need to know the system that defines the coded form of the unit.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    14. Quantity.code
    Définition

    A computer processable form of the unit in some unit representation system.

    ShortCoded form of the unit
    Commentaires

    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.

    Control0..1
    Typecode
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Résumétrue
    Requirements

    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.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))