HL7 Europe Laboratory Report, published by HL7 Europe. This guide is not an authorized publication; it is the continuous build for version 0.2.0-ci built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7-eu/laboratory/ and changes regularly. See the Directory of published versions

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Data Type Profile: Quantity (Eu Lab)

This profile constrains the Quantity data type to use UCUM as the code system for units and optionally share measurement uncertainty

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

Usage:

• Use this DataType Constraint: Observation Results: laboratory

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
Quantity	C	0..*	QuantityIPS	A measured amount using UCUM ele-1: All FHIR elements must have a @value or children qty-3: If a code for the unit is present, the system SHALL also be present
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 ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
extension:uncertaintyType		0..1	code	Probability Distribution Type for uncertainty URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType Binding: ProbabilityDistributionType (required) ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. ele-1: All FHIR elements must have a @value or children
system	SΣC	1..1	uri	UCUM system for units ele-1: All FHIR elements must have a @value or children Fixed Value: http://unitsofmeasure.org
code	SΣ	1..1	code	Coded form of the unit ele-1: All FHIR elements must have a @value or children
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Quantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard

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()

This structure is derived from QuantityIPS

Name	Flags	Card.	Type	Description & Constraints
Quantity		0..*	QuantityIPS	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)
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints
Quantity	C	0..*	QuantityIPS	A measured amount using UCUM qty-3: If a code for the unit is present, the system SHALL also be present
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 system for units Fixed Value: http://unitsofmeasure.org
code	SΣ	1..1	code	Coded form of the unit
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Quantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard

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()

This structure is derived from QuantityIPS

Summary

Extensions

This structure refers to these extensions:

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

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
Quantity	C	0..*	QuantityIPS	A measured amount using UCUM ele-1: All FHIR elements must have a @value or children qty-3: If a code for the unit is present, the system SHALL also be present
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 ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
extension:uncertaintyType		0..1	code	Probability Distribution Type for uncertainty URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType Binding: ProbabilityDistributionType (required) ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. ele-1: All FHIR elements must have a @value or children
system	SΣC	1..1	uri	UCUM system for units ele-1: All FHIR elements must have a @value or children Fixed Value: http://unitsofmeasure.org
code	SΣ	1..1	code	Coded form of the unit ele-1: All FHIR elements must have a @value or children
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Quantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard

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()

Differential View

This structure is derived from QuantityIPS

Name	Flags	Card.	Type	Description & Constraints
Quantity		0..*	QuantityIPS	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)
Documentation for this format

Snapshot View

Name	Flags	Card.	Type	Description & Constraints
Quantity	C	0..*	QuantityIPS	A measured amount using UCUM qty-3: If a code for the unit is present, the system SHALL also be present
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 system for units Fixed Value: http://unitsofmeasure.org
code	SΣ	1..1	code	Coded form of the unit
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Quantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard

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()

This structure is derived from QuantityIPS

Summary

Extensions

This structure refers to these extensions:

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

Other representations of profile: CSV, Excel, Schematron