This page is part of the U.S. Physical Activity IG (v1.0.0: STU 1.0) based on FHIR 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

• Content
• Detailed Descriptions
• Mappings
• XML
• JSON
• TTL

Data Type Profile: Reference - RESTful

A Reference data type where the referenced resource is expected to be resolvable RESTfully.

Usage:

• Use this DataType Constraint: PA Condition - Low Physical Activity, PA Intervention Report, PA Goal, PA Observation - Supporting, Activity Group... Show 3 more, PA Observation Base, PA Service Request and PA Task for Referral Management

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 Reference

Name	Flags	Card.	Type	Description & Constraints
Reference		0..*	Reference	A reference from one resource to another
reference	S	1..1	string	Literal reference, Relative, internal or absolute URL
display	S	0..1	string	Text alternative for the resource
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints
Reference	C	0..*	Reference	A reference from one resource to another
reference	SΣC	1..1	string	Literal reference, Relative, internal or absolute URL
display	SΣ	0..1	string	Text alternative for the resource
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())
ref-1	error	Reference	SHALL have a contained resource if a local reference is provided : reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))

Name	Flags	Card.	Type	Description & Constraints
Reference	C	0..*	Reference	A reference from one resource to another
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	SΣC	1..1	string	Literal reference, Relative, internal or absolute URL
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	Identifier	Logical reference, when literal reference is not known
display	SΣ	0..1	string	Text alternative for the resource
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Reference.type	extensible	ResourceType

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()
ref-1	error	Reference	SHALL have a contained resource if a local reference is provided : reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))

This structure is derived from Reference

Summary

Mandatory: 1 element
Must-Support: 2 elements

Maturity: 2

Differential View

This structure is derived from Reference

Name	Flags	Card.	Type	Description & Constraints
Reference		0..*	Reference	A reference from one resource to another
reference	S	1..1	string	Literal reference, Relative, internal or absolute URL
display	S	0..1	string	Text alternative for the resource
Documentation for this format

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
Reference	C	0..*	Reference	A reference from one resource to another
reference	SΣC	1..1	string	Literal reference, Relative, internal or absolute URL
display	SΣ	0..1	string	Text alternative for the resource
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())
ref-1	error	Reference	SHALL have a contained resource if a local reference is provided : reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))

Snapshot View

Name	Flags	Card.	Type	Description & Constraints
Reference	C	0..*	Reference	A reference from one resource to another
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	SΣC	1..1	string	Literal reference, Relative, internal or absolute URL
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	Identifier	Logical reference, when literal reference is not known
display	SΣ	0..1	string	Text alternative for the resource
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Reference.type	extensible	ResourceType

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()
ref-1	error	Reference	SHALL have a contained resource if a local reference is provided : reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))

This structure is derived from Reference

Summary

Mandatory: 1 element
Must-Support: 2 elements

Maturity: 2

Other representations of profile: CSV, Excel, Schematron