Da Vinci Health Record Exchange (HRex), published by HL7 International / Clinical Interoperability Council. This guide is not an authorized publication; it is the continuous build for version 1.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/davinci-ehrx/ and changes regularly. See the Directory of published versions

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• Detailed Descriptions
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Data Type Profile: HRex REST Reference Profile

This HRex Reference Profile is intended to be used by Da Vinci IGs where there is a need for the reference to be resolvable via REST (and potentially chained through).

Usage:

• Use this DataType Constraint: HRex Parameters - Member Match Response Profile

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			Reference
reference		1..1	string	Literal reference, Relative, internal or absolute URL
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints
Reference	C	0..*	Reference	A reference from one resource to another ref-1: SHALL have a contained resource if a local reference is provided
reference	ΣC	1..1	string	Literal reference, Relative, internal or absolute URL
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 ref-1: SHALL have a contained resource if a local reference is provided
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	ΣC	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	Σ	0..1	string	Text alternative for the resource
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Reference.type	extensible	ResourceType http://hl7.org/fhir/ValueSet/resource-types 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()
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

Maturity: 2

Differential View

This structure is derived from Reference

Name	Flags	Card.	Type	Description & Constraints
Reference			Reference
reference		1..1	string	Literal reference, Relative, internal or absolute URL
Documentation for this format

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
Reference	C	0..*	Reference	A reference from one resource to another ref-1: SHALL have a contained resource if a local reference is provided
reference	ΣC	1..1	string	Literal reference, Relative, internal or absolute URL
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 ref-1: SHALL have a contained resource if a local reference is provided
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	ΣC	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	Σ	0..1	string	Text alternative for the resource
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Reference.type	extensible	ResourceType http://hl7.org/fhir/ValueSet/resource-types 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()
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

Maturity: 2

Other representations of profile: CSV, Excel, Schematron