International Patient Summary Implementation Guide, published by HL7 International / Patient Care. This guide is not an authorized publication; it is the continuous build for version 2.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-ips/ and changes regularly. See the Directory of published versions

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Data Type Profile: SimpleQuantity (IPS)

Data type profile SimpleQuantity constrained to use UCUM as the code system for units

This profile of the SimpleQuantity data type profile imposes the usage of the UCUM code system for units

Usage:

• Use this DataType Constraint: Range (IPS)

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		0..*	SimpleQuantity	A measured amount using UCUM
system	S	1..1	uri	UCUM system for units Fixed Value: http://unitsofmeasure.org
code	S	1..1	code	Coded form of the unit
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints
Quantity	C	0..*	SimpleQuantity	A measured amount using UCUM qty-3: If a code for the unit is present, the system SHALL also be present sqty-1: The comparator is not used on a SimpleQuantity
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

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 measured amount using UCUM qty-3: If a code for the unit is present, the system SHALL also be present sqty-1: The comparator is not used on a SimpleQuantity
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	0..1	decimal	Numerical value (with implicit precision)
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

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: 2 elements
Must-Support: 2 elements
Fixed: 1 element

Maturity: 2

Differential View

This structure is derived from SimpleQuantity

Name	Flags	Card.	Type	Description & Constraints
Quantity		0..*	SimpleQuantity	A measured amount using UCUM
system	S	1..1	uri	UCUM system for units Fixed Value: http://unitsofmeasure.org
code	S	1..1	code	Coded form of the unit
Documentation for this format

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
Quantity	C	0..*	SimpleQuantity	A measured amount using UCUM qty-3: If a code for the unit is present, the system SHALL also be present sqty-1: The comparator is not used on a SimpleQuantity
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

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 measured amount using UCUM qty-3: If a code for the unit is present, the system SHALL also be present sqty-1: The comparator is not used on a SimpleQuantity
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	0..1	decimal	Numerical value (with implicit precision)
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

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: 2 elements
Must-Support: 2 elements
Fixed: 1 element

Maturity: 2

Other representations of profile: CSV, Excel, Schematron