This page is part of the MyHealth@Eu Core (v1.0.0: Wave 9) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

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Data Type Profile: Quantity (MyHealth@EU)

This profile of the Quantity data type constraints the Quantity (MyHealth@EU) profile defining a core value set for UCUM. The Quantity (MyHealth@EU) imposes the usage of the UCUM as the code system for units and allows expressing uncertainty of measurement.

This profile of the Quantity data type imposes the usage of the UCUM as the code system for units and allows expressing uncertainty of measurement

Usages:

• Derived from this DataType Profile: Simple Quantity (MyHealth@EU)
• Use this DataType Profile: Ratio (MyHealth@EU) and Observation: Medical Test Result (Core)

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.

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

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Quantity	C	0..*	Quantity	A measured amount using UCUM Constraints: qty-3
Slices for extension				Content/Rules for all slices
extension:uncertainty		0..1	decimal	Standard Deviation (same units as the quantity) URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty
extension:uncertaintyType		0..1	code	Probability Distribution Type for uncertainty URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType Binding: ProbabilityDistributionType (required)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
system	SΣC	1..1	uri	UCUM or EDQM system for units Constraints: myhealth-allowed-systems
code	SΣ	1..1	code	Coded form of the unit Binding: eHDSI Unit (extensible) Additional Bindings Purpose Documentation eHDSI Quantity Unit Extensible A unit of presentation used to represent the quantity of product
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
Quantity.comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Quantity.code	Base	extensible	eHDSI Unit	📦9.1.0	MyHealthEu MVC package v9.1

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()
myhealth-allowed-systems	error	Quantity.system	The system for the quantity unit must be either UCUM or EDQM.	$this = 'http://unitsofmeasure.org' or $this = 'http://standardterms.edqm.eu'
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

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Quantity		0..*	Quantity	A measured amount using UCUM
Slices for extension				Content/Rules for all slices
extension:uncertainty		0..1	decimal	Standard Deviation (same units as the quantity) URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty
extension:uncertaintyType		0..1	code	Probability Distribution Type for uncertainty URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType Binding: ProbabilityDistributionType (required)
system	SC	1..1	uri	UCUM or EDQM system for units Constraints: myhealth-allowed-systems
code	S	1..1	code	Coded form of the unit Binding: eHDSI Unit (extensible) Additional Bindings Purpose Documentation eHDSI Quantity Unit Extensible A unit of presentation used to represent the quantity of product
Documentation for this format

Terminology Bindings (Differential)

Path	Status	Usage	ValueSet	Version	Source
Quantity.code	Base	extensible	eHDSI Unit	📦9.1.0	MyHealthEu MVC package v9.1

Constraints

Id	Grade	Path(s)	Description	Expression
myhealth-allowed-systems	error	Quantity.system	The system for the quantity unit must be either UCUM or EDQM.	$this = 'http://unitsofmeasure.org' or $this = 'http://standardterms.edqm.eu'

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Quantity	C	0..*	Quantity	A measured amount using UCUM Constraints: qty-3
id		0..1	string	Unique id for inter-element referencing
Slices for extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
extension:uncertainty		0..1	decimal	Standard Deviation (same units as the quantity) URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty
extension:uncertaintyType		0..1	code	Probability Distribution Type for uncertainty URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType Binding: ProbabilityDistributionType (required)
value	Σ	0..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	Σ	0..1	string	Unit representation
system	SΣC	1..1	uri	UCUM or EDQM system for units Constraints: myhealth-allowed-systems
code	SΣ	1..1	code	Coded form of the unit Binding: eHDSI Unit (extensible) Additional Bindings Purpose Documentation eHDSI Quantity Unit Extensible A unit of presentation used to represent the quantity of product
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
Quantity.comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Quantity.code	Base	extensible	eHDSI Unit	📦9.1.0	MyHealthEu MVC package v9.1

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()
myhealth-allowed-systems	error	Quantity.system	The system for the quantity unit must be either UCUM or EDQM.	$this = 'http://unitsofmeasure.org' or $this = 'http://standardterms.edqm.eu'
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: 2 elements
Must-Support: 2 elements

Extensions

This structure refers to these extensions:

• http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty|5.2.0
• http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType|5.2.0

Key Elements View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Quantity	C	0..*	Quantity	A measured amount using UCUM Constraints: qty-3
Slices for extension				Content/Rules for all slices
extension:uncertainty		0..1	decimal	Standard Deviation (same units as the quantity) URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty
extension:uncertaintyType		0..1	code	Probability Distribution Type for uncertainty URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType Binding: ProbabilityDistributionType (required)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
system	SΣC	1..1	uri	UCUM or EDQM system for units Constraints: myhealth-allowed-systems
code	SΣ	1..1	code	Coded form of the unit Binding: eHDSI Unit (extensible) Additional Bindings Purpose Documentation eHDSI Quantity Unit Extensible A unit of presentation used to represent the quantity of product
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
Quantity.comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Quantity.code	Base	extensible	eHDSI Unit	📦9.1.0	MyHealthEu MVC package v9.1

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()
myhealth-allowed-systems	error	Quantity.system	The system for the quantity unit must be either UCUM or EDQM.	$this = 'http://unitsofmeasure.org' or $this = 'http://standardterms.edqm.eu'
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

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Quantity		0..*	Quantity	A measured amount using UCUM
Slices for extension				Content/Rules for all slices
extension:uncertainty		0..1	decimal	Standard Deviation (same units as the quantity) URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty
extension:uncertaintyType		0..1	code	Probability Distribution Type for uncertainty URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType Binding: ProbabilityDistributionType (required)
system	SC	1..1	uri	UCUM or EDQM system for units Constraints: myhealth-allowed-systems
code	S	1..1	code	Coded form of the unit Binding: eHDSI Unit (extensible) Additional Bindings Purpose Documentation eHDSI Quantity Unit Extensible A unit of presentation used to represent the quantity of product
Documentation for this format

Terminology Bindings (Differential)

Path	Status	Usage	ValueSet	Version	Source
Quantity.code	Base	extensible	eHDSI Unit	📦9.1.0	MyHealthEu MVC package v9.1

Constraints

Id	Grade	Path(s)	Description	Expression
myhealth-allowed-systems	error	Quantity.system	The system for the quantity unit must be either UCUM or EDQM.	$this = 'http://unitsofmeasure.org' or $this = 'http://standardterms.edqm.eu'

Snapshot View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Quantity	C	0..*	Quantity	A measured amount using UCUM Constraints: qty-3
id		0..1	string	Unique id for inter-element referencing
Slices for extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
extension:uncertainty		0..1	decimal	Standard Deviation (same units as the quantity) URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty
extension:uncertaintyType		0..1	code	Probability Distribution Type for uncertainty URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType Binding: ProbabilityDistributionType (required)
value	Σ	0..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	Σ	0..1	string	Unit representation
system	SΣC	1..1	uri	UCUM or EDQM system for units Constraints: myhealth-allowed-systems
code	SΣ	1..1	code	Coded form of the unit Binding: eHDSI Unit (extensible) Additional Bindings Purpose Documentation eHDSI Quantity Unit Extensible A unit of presentation used to represent the quantity of product
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
Quantity.comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Quantity.code	Base	extensible	eHDSI Unit	📦9.1.0	MyHealthEu MVC package v9.1

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()
myhealth-allowed-systems	error	Quantity.system	The system for the quantity unit must be either UCUM or EDQM.	$this = 'http://unitsofmeasure.org' or $this = 'http://standardterms.edqm.eu'
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: 2 elements
Must-Support: 2 elements

Extensions

This structure refers to these extensions:

• http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty|5.2.0
• http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType|5.2.0

Other representations of profile: CSV, Excel, Schematron