Sequoia Project Healthcare Directory Implementation Guide
1.18.0 - Release 1

Extension: FHIR IG Conformance

Official URL: https://sequoiaproject.org/fhir/sphd/StructureDefinition/FHIRIGConformance Version: 1.18.0
Active as of 2026-10-27 Computable Name: FHIRIGConformance

When the Transaction extension is set to FHIR REST, this extension specifies which implementation guides and CapabilityStatement resources this Endpoint conforms to. If an Endpoint conforms to multiple versions of a single IG (i.e. multiple versions of US Core) then multiple instances of this extension should be specified.

Context of Use

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

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Extension
Extension.extension 1..* Extension Extension
Extension.Slices for extension Content/Rules for all slices
Extension.Slices for extension.extension:igCanonicalUrl This element must be supported. 1..1 Extension The canonical identifier for an implementation guide that this Endpoint claims to conform to.
Extension.Slices for extension.extension:igCanonicalUrl.extension 0..0 Extension
Extension.Slices for extension.extension:igCanonicalUrl.url 1..1 uri "igCanonicalUrl"
Extension.Slices for extension.extension:igCanonicalUrl.value[x] 1..1 canonical() Value of extension
Extension.Slices for extension.extension:igPackage This element must be supported. 0..1 Extension The package URL for an implementation guide that this Endpoint claims to conform to.
Extension.Slices for extension.extension:igPackage.extension 0..0 Extension
Extension.Slices for extension.extension:igPackage.url 1..1 uri "igPackage"
Extension.Slices for extension.extension:igPackage.value[x] 1..1 url Value of extension
Extension.Slices for extension.extension:igVersion This element must be supported. 0..1 Extension The version of the IG that this Endpoint implements.
Extension.Slices for extension.extension:igVersion.extension 0..0 Extension
Extension.Slices for extension.extension:igVersion.url 1..1 uri "igVersion"
Extension.Slices for extension.extension:igVersion.value[x] 1..1 string Value of extension
Extension.Slices for extension.extension:capStmt This element must be supported. 0..* Extension The cannonical URL for any CapabilityStatement resource(s) in the IG that this Endpoint implements.
Extension.Slices for extension.extension:capStmt.extension 0..0 Extension
Extension.Slices for extension.extension:capStmt.url 1..1 uri "capStmt"
Extension.Slices for extension.extension:capStmt.value[x] 1..1 url Value of extension
Extension.url 1..1 uri "https://sequoiaproject.org/fhir/sphd/StructureDefinition/FHIRIGConformance"

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Extension
Extension.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension 1..* Extension Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:igCanonicalUrl This element must be supported. 1..1 Extension The canonical identifier for an implementation guide that this Endpoint claims to conform to.
Extension.Slices for extension.extension:igCanonicalUrl.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:igCanonicalUrl.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:igCanonicalUrl.url 1..1 uri "igCanonicalUrl"
Extension.Slices for extension.extension:igCanonicalUrl.value[x] 1..1 canonical() Value of extension
Extension.Slices for extension.extension:igPackage This element must be supported. 0..1 Extension The package URL for an implementation guide that this Endpoint claims to conform to.
Extension.Slices for extension.extension:igPackage.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:igPackage.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:igPackage.url 1..1 uri "igPackage"
Extension.Slices for extension.extension:igPackage.value[x] 1..1 url Value of extension
Extension.Slices for extension.extension:igVersion This element must be supported. 0..1 Extension The version of the IG that this Endpoint implements.
Extension.Slices for extension.extension:igVersion.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:igVersion.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:igVersion.url 1..1 uri "igVersion"
Extension.Slices for extension.extension:igVersion.value[x] 1..1 string Value of extension
Extension.Slices for extension.extension:capStmt This element must be supported. 0..* Extension The cannonical URL for any CapabilityStatement resource(s) in the IG that this Endpoint implements.
Extension.Slices for extension.extension:capStmt.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:capStmt.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:capStmt.url 1..1 uri "capStmt"
Extension.Slices for extension.extension:capStmt.value[x] 1..1 url Value of extension
Extension.url 1..1 uri "https://sequoiaproject.org/fhir/sphd/StructureDefinition/FHIRIGConformance"

doco Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: When the Transaction extension is set to FHIR REST, this extension specifies which implementation guides and CapabilityStatement resources this Endpoint conforms to. If an Endpoint conforms to multiple versions of a single IG (i.e. multiple versions of US Core) then multiple instances of this extension should be specified.

  • igCanonicalUrl: canonical: The canonical identifier for an implementation guide (IG) that this Endpoint claims to conform to. For example, for US Core this would be 'http://hl7.org/fhir/us/core/ImplementationGuide/hl7.fhir.us.core'. Note that canonical identifiers are formatted as URIs, they may not resolve to the actual web page for the IG.
  • igPackage: url: The package URL for an implementation guide (IG) that this Endpoint claims to conform to. If provided, it is assumed to be a RESTful URL where implementers can retrieve the package.tgz file for the IG. For example, for US Core this could be the full URL to the current US Core package file at 'https://hl7.org/fhir/us/core/package.tgz'.
  • igVersion: string: The version of the IG that this Endpoint implements. If absent, this is assumed to be the latest published version of the IG.
  • capStmt: url: The cannonical URL for any CapabilityStatement resource(s) in the IG that this Endpoint implements. For example, for a US Core compliant Endpoint, this Endpoint may declare conformance for the US Core Server CapabilityStatement by adding the following URI: http://hl7.org/fhir/us/core/CapabilityStatement/us-core-server

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Extension
Extension.extension 1..* Extension Extension
Extension.Slices for extension Content/Rules for all slices
Extension.Slices for extension.extension:igCanonicalUrl This element must be supported. 1..1 Extension The canonical identifier for an implementation guide that this Endpoint claims to conform to.
Extension.Slices for extension.extension:igCanonicalUrl.extension 0..0 Extension
Extension.Slices for extension.extension:igCanonicalUrl.url 1..1 uri "igCanonicalUrl"
Extension.Slices for extension.extension:igCanonicalUrl.value[x] 1..1 canonical() Value of extension
Extension.Slices for extension.extension:igPackage This element must be supported. 0..1 Extension The package URL for an implementation guide that this Endpoint claims to conform to.
Extension.Slices for extension.extension:igPackage.extension 0..0 Extension
Extension.Slices for extension.extension:igPackage.url 1..1 uri "igPackage"
Extension.Slices for extension.extension:igPackage.value[x] 1..1 url Value of extension
Extension.Slices for extension.extension:igVersion This element must be supported. 0..1 Extension The version of the IG that this Endpoint implements.
Extension.Slices for extension.extension:igVersion.extension 0..0 Extension
Extension.Slices for extension.extension:igVersion.url 1..1 uri "igVersion"
Extension.Slices for extension.extension:igVersion.value[x] 1..1 string Value of extension
Extension.Slices for extension.extension:capStmt This element must be supported. 0..* Extension The cannonical URL for any CapabilityStatement resource(s) in the IG that this Endpoint implements.
Extension.Slices for extension.extension:capStmt.extension 0..0 Extension
Extension.Slices for extension.extension:capStmt.url 1..1 uri "capStmt"
Extension.Slices for extension.extension:capStmt.value[x] 1..1 url Value of extension
Extension.url 1..1 uri "https://sequoiaproject.org/fhir/sphd/StructureDefinition/FHIRIGConformance"
Extension.value[x] 0..0 Value of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Extension
Extension.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension 1..* Extension Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:igCanonicalUrl This element must be supported. 1..1 Extension The canonical identifier for an implementation guide that this Endpoint claims to conform to.
Extension.Slices for extension.extension:igCanonicalUrl.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:igCanonicalUrl.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:igCanonicalUrl.url 1..1 uri "igCanonicalUrl"
Extension.Slices for extension.extension:igCanonicalUrl.value[x] 1..1 canonical() Value of extension
Extension.Slices for extension.extension:igPackage This element must be supported. 0..1 Extension The package URL for an implementation guide that this Endpoint claims to conform to.
Extension.Slices for extension.extension:igPackage.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:igPackage.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:igPackage.url 1..1 uri "igPackage"
Extension.Slices for extension.extension:igPackage.value[x] 1..1 url Value of extension
Extension.Slices for extension.extension:igVersion This element must be supported. 0..1 Extension The version of the IG that this Endpoint implements.
Extension.Slices for extension.extension:igVersion.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:igVersion.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:igVersion.url 1..1 uri "igVersion"
Extension.Slices for extension.extension:igVersion.value[x] 1..1 string Value of extension
Extension.Slices for extension.extension:capStmt This element must be supported. 0..* Extension The cannonical URL for any CapabilityStatement resource(s) in the IG that this Endpoint implements.
Extension.Slices for extension.extension:capStmt.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:capStmt.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:capStmt.url 1..1 uri "capStmt"
Extension.Slices for extension.extension:capStmt.value[x] 1..1 url Value of extension
Extension.url 1..1 uri "https://sequoiaproject.org/fhir/sphd/StructureDefinition/FHIRIGConformance"

doco Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: When the Transaction extension is set to FHIR REST, this extension specifies which implementation guides and CapabilityStatement resources this Endpoint conforms to. If an Endpoint conforms to multiple versions of a single IG (i.e. multiple versions of US Core) then multiple instances of this extension should be specified.

  • igCanonicalUrl: canonical: The canonical identifier for an implementation guide (IG) that this Endpoint claims to conform to. For example, for US Core this would be 'http://hl7.org/fhir/us/core/ImplementationGuide/hl7.fhir.us.core'. Note that canonical identifiers are formatted as URIs, they may not resolve to the actual web page for the IG.
  • igPackage: url: The package URL for an implementation guide (IG) that this Endpoint claims to conform to. If provided, it is assumed to be a RESTful URL where implementers can retrieve the package.tgz file for the IG. For example, for US Core this could be the full URL to the current US Core package file at 'https://hl7.org/fhir/us/core/package.tgz'.
  • igVersion: string: The version of the IG that this Endpoint implements. If absent, this is assumed to be the latest published version of the IG.
  • capStmt: url: The cannonical URL for any CapabilityStatement resource(s) in the IG that this Endpoint implements. For example, for a US Core compliant Endpoint, this Endpoint may declare conformance for the US Core Server CapabilityStatement by adding the following URI: http://hl7.org/fhir/us/core/CapabilityStatement/us-core-server

 

Other representations of profile: CSV, Excel, Schematron

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()