FHIR Tooling Extensions IG, published by HL7 International / FHIR Infrastructure. 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/FHIR/fhir-tools-ig/ and changes regularly. See the Directory of published versions

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Extension: IG Link Dependency

A package (id#ver) that has pages that this IG references, without depending on. The sole purpose of defining these IGs is to inform the publisher link checker that links to this IG are valid

Context of Use

This extension may be used on the following element(s)

• Element ID: ImplementationGuide.definition (FHIR versions R4 and after)

Usage info

Usages:

• This Extension is not used by any profiles in this Implementation Guide

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description Differentials, Snapshots, and other representations.

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

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Extension		0..*	Extension	ig-internal-dependency
extension		0..0		Extension
url		1..1	uri	"http://hl7.org/fhir/tools/StructureDefinition/ig-link-dependency"
value[x]		1..1	code	Value of extension
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Extension		0..*	Extension	ig-internal-dependency
id		0..1	id	Unique id for inter-element referencing
extension		0..0		Extension Slice: Unordered, Open by value:url
url		1..1	uri	"http://hl7.org/fhir/tools/StructureDefinition/ig-link-dependency"
value[x]		1..1	code	Value of extension
Documentation for this format

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()

Summary

Simple Extension with the type code: A package (id#ver) that has pages that this IG references, without depending on. The sole purpose of defining these IGs is to inform the publisher link checker that links to this IG are valid

Maturity: 4

Differential ViewDifferential View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Extension		0..*	Extension	ig-internal-dependency
extension		0..0		Extension
url		1..1	uri	"http://hl7.org/fhir/tools/StructureDefinition/ig-link-dependency"
value[x]		1..1	code	Value of extension
Documentation for this format

Snapshot View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Extension		0..*	Extension	ig-internal-dependency
id		0..1	id	Unique id for inter-element referencing
extension		0..0		Extension Slice: Unordered, Open by value:url
url		1..1	uri	"http://hl7.org/fhir/tools/StructureDefinition/ig-link-dependency"
value[x]		1..1	code	Value of extension
Documentation for this format

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()

Summary

Simple Extension with the type code: A package (id#ver) that has pages that this IG references, without depending on. The sole purpose of defining these IGs is to inform the publisher link checker that links to this IG are valid

Maturity: 4

Other representations of profile: CSV, Excel, Schematron