This page is part of the CH EMED (R4) (v4.0.1: STU 4) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

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Data Type Profile: CH EMED Quantity with Units

A quantity with defined units

Usage:

• Use this DataType Constraint: CH EMED Dosage Split, CH EMED Dosage (MedicationStatement / MedicationDispense), CH EMED MedicationAdministration (DIS), CH EMED Range with Units and CH EMED Ratio with Units

Formal Views of Profile Content

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

• Differential Table
• Key Elements Table
• Snapshot Table
• Statistics/References
• All

This structure is derived from SimpleQuantity

Name	Flags	Card.	Type	Description & Constraints
Quantity			SimpleQuantity
value		1..1	decimal	Numerical value (with implicit precision)
unit		1..1	string	Unit representation
system		1..1	uri	System of the code from Units of Presentation
code		1..1	code	Coded form of the unit Binding: UnitCode (required): The coded unit used describing the quantity.
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet
Quantity.code	required	UnitCode

Name	Flags	Card.	Type	Description & Constraints
Quantity	C	0..*	SimpleQuantity	A fixed quantity (no comparator)
value	Σ	1..1	decimal	Numerical value (with implicit precision)
unit	Σ	1..1	string	Unit representation
system	ΣC	1..1	uri	System of the code from Units of Presentation
code	Σ	1..1	code	Coded form of the unit Binding: UnitCode (required): The coded unit used describing the quantity.
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Quantity.code	required	UnitCode

Constraints

Id	Grade	Path(s)	Details	Requirements
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()
sqty-1	error	Quantity	The comparator is not used on a SimpleQuantity : comparator.empty()

Name	Flags	Card.	Type	Description & Constraints
Quantity	C	0..*	SimpleQuantity	A fixed quantity (no comparator)
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	Σ	1..1	decimal	Numerical value (with implicit precision)
unit	Σ	1..1	string	Unit representation
system	ΣC	1..1	uri	System of the code from Units of Presentation
code	Σ	1..1	code	Coded form of the unit Binding: UnitCode (required): The coded unit used describing the quantity.
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Quantity.code	required	UnitCode

Constraints

Id	Grade	Path(s)	Details	Requirements
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()
sqty-1	error	Quantity	The comparator is not used on a SimpleQuantity : comparator.empty()

This structure is derived from SimpleQuantity

Summary

Mandatory: 4 elements

Differential View

This structure is derived from SimpleQuantity

Name	Flags	Card.	Type	Description & Constraints
Quantity			SimpleQuantity
value		1..1	decimal	Numerical value (with implicit precision)
unit		1..1	string	Unit representation
system		1..1	uri	System of the code from Units of Presentation
code		1..1	code	Coded form of the unit Binding: UnitCode (required): The coded unit used describing the quantity.
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet
Quantity.code	required	UnitCode

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
Quantity	C	0..*	SimpleQuantity	A fixed quantity (no comparator)
value	Σ	1..1	decimal	Numerical value (with implicit precision)
unit	Σ	1..1	string	Unit representation
system	ΣC	1..1	uri	System of the code from Units of Presentation
code	Σ	1..1	code	Coded form of the unit Binding: UnitCode (required): The coded unit used describing the quantity.
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Quantity.code	required	UnitCode

Constraints

Id	Grade	Path(s)	Details	Requirements
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()
sqty-1	error	Quantity	The comparator is not used on a SimpleQuantity : comparator.empty()

Snapshot View

Name	Flags	Card.	Type	Description & Constraints
Quantity	C	0..*	SimpleQuantity	A fixed quantity (no comparator)
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	Σ	1..1	decimal	Numerical value (with implicit precision)
unit	Σ	1..1	string	Unit representation
system	ΣC	1..1	uri	System of the code from Units of Presentation
code	Σ	1..1	code	Coded form of the unit Binding: UnitCode (required): The coded unit used describing the quantity.
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Quantity.code	required	UnitCode

Constraints

Id	Grade	Path(s)	Details	Requirements
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()
sqty-1	error	Quantity	The comparator is not used on a SimpleQuantity : comparator.empty()

This structure is derived from SimpleQuantity

Summary

Mandatory: 4 elements

Other representations of profile: CSV, Excel, Schematron