CH EMS (R4)
2.1.0-ci-build - ci-build Switzerland flag

CH EMS (R4), published by IVR Interverband für Rettungswesen. This guide is not an authorized publication; it is the continuous build for version 2.1.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7ch/ch-ems/ and changes regularly. See the Directory of published versions

Data Type Profile: CH EMS Quantity

Official URL: http://fhir.ch/ig/ch-ems/StructureDefinition/ch-ems-quantity Version: 2.1.0-ci-build
Active as of 2026-01-26 Computable Name: CHEmsQuantity

Copyright/Legal: CC0-1.0

This profile constrains the Quantity data type.

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Quantity C 0..* Quantity CH EMS Quantity
Constraints: qty-3
... value SΣ 1..1 decimal Numerical value (with implicit precision)
... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
... unit SΣ 0..1 string Unit representation
... code SΣ 1..1 code Coded form of the unit

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
Quantity.comparator Base required QuantityComparator 📍4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
qty-3 error Quantity If a code for the unit is present, the system SHALL also be present code.empty() or system.exists()

This structure is derived from Quantity

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Quantity 0..* Quantity CH EMS Quantity
... value S 1..1 decimal Numerical value (with implicit precision)
... unit S 0..1 string Unit representation
... system S 1..1 uri System that defines coded unit form

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Quantity C 0..* Quantity CH EMS Quantity
Constraints: qty-3
... id 0..1 string Unique id for inter-element referencing
... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
... value SΣ 1..1 decimal Numerical value (with implicit precision)
... unit SΣ 0..1 string Unit representation
... system SΣC 1..1 uri System that defines coded unit form
... code SΣ 1..1 code Coded form of the unit

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
Quantity.comparator Base required QuantityComparator 📍4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()
qty-3 error Quantity If a code for the unit is present, the system SHALL also be present code.empty() or system.exists()

This structure is derived from Quantity

Summary

Mandatory: 3 elements
Must-Support: 4 elements

Key Elements View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Quantity C 0..* Quantity CH EMS Quantity
Constraints: qty-3
... value SΣ 1..1 decimal Numerical value (with implicit precision)
... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
... unit SΣ 0..1 string Unit representation
... code SΣ 1..1 code Coded form of the unit

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
Quantity.comparator Base required QuantityComparator 📍4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
qty-3 error Quantity If a code for the unit is present, the system SHALL also be present code.empty() or system.exists()

Differential View

This structure is derived from Quantity

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Quantity 0..* Quantity CH EMS Quantity
... value S 1..1 decimal Numerical value (with implicit precision)
... unit S 0..1 string Unit representation
... system S 1..1 uri System that defines coded unit form

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Quantity C 0..* Quantity CH EMS Quantity
Constraints: qty-3
... id 0..1 string Unique id for inter-element referencing
... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
... value SΣ 1..1 decimal Numerical value (with implicit precision)
... unit SΣ 0..1 string Unit representation
... system SΣC 1..1 uri System that defines coded unit form
... code SΣ 1..1 code Coded form of the unit

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
Quantity.comparator Base required QuantityComparator 📍4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()
qty-3 error Quantity If a code for the unit is present, the system SHALL also be present code.empty() or system.exists()

This structure is derived from Quantity

Summary

Mandatory: 3 elements
Must-Support: 4 elements

 

Other representations of profile: CSV, Excel, Schematron