Extensions for Using Data Elements from FHIR R4 in FHIR R5 - Downloaded Version null See the Directory of published versions

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Resource Profile: Profile_R4_CodeSystem_R5

This cross-version profile allows R4 CodeSystem content to be represented via FHIR R5 CodeSystem resources.

Usages:

• Refer to this Profile: R4: Code System (if necessary) (new)

You can also check for usages in the FHIR IG Statistics

Formal Views of Profile Content

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

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

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
CodeSystem	C	0..*	CodeSystem(5.0.0)	Declares the existence of and describes a code system or code system supplement Constraints: cnl-0, csd-1, csd-2, csd-3, csd-4
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
contained		0..*	Resource	Contained, inline Resources
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored Constraints: ext-1
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
hierarchyMeaning	ΣC	0..1	code	grouped-by | is-a | part-of | classified-with Binding: CodeSystemHierarchyMeaning (required): The meaning of the hierarchy of concepts in a code system.
content	ΣC	1..1	code	not-present | example | fragment | complete | supplement Binding: CodeSystemContentMode (required): The extent of the content of the code system (the concepts and codes it defines) are represented in a code system resource.
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
CodeSystem.status	Base	required	PublicationStatus	📍5.0.0	FHIR Std.
CodeSystem.hierarchyMeaning	Base	required	Code System Hierarchy Meaning	📍5.0.0	FHIR Std.
CodeSystem.content	Base	required	Code System Content Mode	📍5.0.0	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
cnl-0	warning	CodeSystem	Name should be usable as an identifier for the module by machine processing applications such as code generation	name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')
csd-1	error	CodeSystem	Within a code system definition, all the codes SHALL be unique	concept.exists() implies concept.code.combine(%resource.concept.descendants().concept.code).isDistinct()
csd-2	warning	CodeSystem	If there is an explicit hierarchy, a hierarchyMeaning should be provided	concept.concept.exists() implies hierarchyMeaning.exists()
csd-3	warning	CodeSystem	If there is an implicit hierarchy, a hierarchyMeaning should be provided	concept.where(property.code = 'parent' or property.code = 'child').exists() implies hierarchyMeaning.exists()
csd-4	error	CodeSystem	If the code system content = supplement, it must nominate what it's a supplement for	CodeSystem.content = 'supplement' implies CodeSystem.supplements.exists()
ele-1	error	CodeSystem.implicitRules, CodeSystem.modifierExtension, CodeSystem.status, CodeSystem.hierarchyMeaning, CodeSystem.content	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
ext-1	error	CodeSystem.modifierExtension	Must have either extensions or value[x], not both	extension.exists() != value.exists()

This structure is derived from CodeSystem

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
CodeSystem		0..*	CodeSystem(5.0.0)	Declares the existence of and describes a code system or code system supplement
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
CodeSystem	C	0..*	CodeSystem(5.0.0)	Declares the existence of and describes a code system or code system supplement Constraints: cnl-0, csd-1, csd-2, csd-3, csd-4
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: AllLanguages (required): IETF language tag for a human language Additional Bindings Purpose CommonLanguages Starter
text		0..1	Narrative	Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored Constraints: ext-1
url	ΣC	0..1	uri	Canonical identifier for this code system, represented as a URI (globally unique) (Coding.system) Constraints: cnl-1
identifier	Σ	0..*	Identifier	Additional identifier for the code system (business identifier)
version	Σ	0..1	string	Business version of the code system (Coding.version)
versionAlgorithm[x]	Σ	0..1		How to compare versions Binding: VersionAlgorithm (extensible)
versionAlgorithmString			string
versionAlgorithmCoding			Coding
name	ΣC	0..1	string	Name for this code system (computer friendly)
title	Σ	0..1	string	Name for this code system (human friendly)
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
experimental	Σ	0..1	boolean	For testing purposes, not real usage
date	Σ	0..1	dateTime	Date last changed
publisher	Σ	0..1	string	Name of the publisher/steward (organization or individual)
contact	Σ	0..*	ContactDetail	Contact details for the publisher
description		0..1	markdown	Natural language description of the code system
useContext	Σ	0..*	UsageContext	The context that the content is intended to support
jurisdiction	Σ	0..*	CodeableConcept	Intended jurisdiction for code system (if applicable) Binding: JurisdictionValueSet (extensible): Countries and regions within which this artifact is targeted for use.
purpose		0..1	markdown	Why this code system is defined
copyright		0..1	markdown	Use and/or publishing restrictions
copyrightLabel		0..1	string	Copyright holder and year(s)
approvalDate		0..1	date	When the CodeSystem was approved by publisher
lastReviewDate		0..1	date	When the CodeSystem was last reviewed by the publisher
effectivePeriod	Σ	0..1	Period	When the CodeSystem is expected to be used
topic		0..*	CodeableConcept	E.g. Education, Treatment, Assessment, etc Binding: DefinitionTopic (example)
author		0..*	ContactDetail	Who authored the CodeSystem
editor		0..*	ContactDetail	Who edited the CodeSystem
reviewer		0..*	ContactDetail	Who reviewed the CodeSystem
endorser		0..*	ContactDetail	Who endorsed the CodeSystem
relatedArtifact		0..*	RelatedArtifact	Additional documentation, citations, etc
caseSensitive	Σ	0..1	boolean	If code comparison is case sensitive
valueSet	Σ	0..1	canonical(ValueSet)	Canonical reference to the value set with entire code system
hierarchyMeaning	ΣC	0..1	code	grouped-by | is-a | part-of | classified-with Binding: CodeSystemHierarchyMeaning (required): The meaning of the hierarchy of concepts in a code system.
compositional	Σ	0..1	boolean	If code system defines a compositional grammar
versionNeeded	Σ	0..1	boolean	If definitions are not stable
content	ΣC	1..1	code	not-present | example | fragment | complete | supplement Binding: CodeSystemContentMode (required): The extent of the content of the code system (the concepts and codes it defines) are represented in a code system resource.
supplements	ΣC	0..1	canonical(CodeSystem)	Canonical URL of Code System this adds designations and properties to
count	Σ	0..1	unsignedInt	Total concepts in the code system
filter	Σ	0..*	BackboneElement	Filter that can be used in a value set
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized Constraints: ext-1
code	Σ	1..1	code	Code that identifies the filter
description	Σ	0..1	string	How or why the filter is used
operator	Σ	1..*	code	= | is-a | descendent-of | is-not-a | regex | in | not-in | generalizes | child-of | descendent-leaf | exists Binding: FilterOperator (required): The kind of operation to perform as a part of a property based filter.
value	Σ	1..1	string	What to use for the value
property	Σ	0..*	BackboneElement	Additional information supplied about each concept
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized Constraints: ext-1
code	Σ	1..1	code	Identifies the property on the concepts, and when referred to in operations
uri	Σ	0..1	uri	Formal identifier for the property
description	Σ	0..1	string	Why the property is defined, and/or what it conveys
type	Σ	1..1	code	code | Coding | string | integer | boolean | dateTime | decimal Binding: PropertyType (required): The type of a property value.
concept	C	0..*	BackboneElement	Concepts in the code system
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized Constraints: ext-1
code	C	1..1	code	Code that identifies concept
display		0..1	string	Text to display to the user
definition		0..1	string	Formal definition
designation	C	0..*	BackboneElement	Additional representations for the concept Constraints: csd-5
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized Constraints: ext-1
language		0..1	code	Human language of the designation Binding: AllLanguages (required): IETF language tag for a human language Additional Bindings Purpose CommonLanguages Starter
use	C	0..1	Coding	Details how this designation would be used Binding: DesignationUse (extensible): Details of how a designation would be used.
additionalUse	C	0..*	Coding	Additional ways how this designation would be used Binding: DesignationUse (extensible): Details of how a designation would be used.
value		1..1	string	The text value for this designation
property		0..*	BackboneElement	Property value for the concept
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized Constraints: ext-1
code	C	1..1	code	Reference to CodeSystem.property.code
value[x]		1..1		Value of the property for this concept
valueCode			code
valueCoding			Coding
valueString			string
valueInteger			integer
valueBoolean			boolean
valueDateTime			dateTime
valueDecimal			decimal
concept	C	0..*	See concept (CodeSystem)	Child Concepts (is-a/contains/categorizes)
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
CodeSystem.language	Base	required	All Languages	📍5.0.0	FHIR Std.
CodeSystem.versionAlgorithm[x]	Base	extensible	Version Algorithm	📍5.0.0	FHIR Std.
CodeSystem.status	Base	required	PublicationStatus	📍5.0.0	FHIR Std.
CodeSystem.jurisdiction	Base	extensible	Jurisdiction ValueSet	📍5.0.0	FHIR Std.
CodeSystem.topic	Base	example	Definition Topic	📍5.0.0	FHIR Std.
CodeSystem.hierarchyMeaning	Base	required	Code System Hierarchy Meaning	📍5.0.0	FHIR Std.
CodeSystem.content	Base	required	Code System Content Mode	📍5.0.0	FHIR Std.
CodeSystem.filter.operator	Base	required	Filter Operator	📍5.0.0	FHIR Std.
CodeSystem.property.​type	Base	required	Property Type	📍5.0.0	FHIR Std.
CodeSystem.concept.designation.​language	Base	required	All Languages	📍5.0.0	FHIR Std.
CodeSystem.concept.designation.​use	Base	extensible	Designation Use	📍5.0.0	FHIR Std.
CodeSystem.concept.designation.​additionalUse	Base	extensible	Designation Use	📍5.0.0	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
cnl-0	warning	CodeSystem	Name should be usable as an identifier for the module by machine processing applications such as code generation	name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')
cnl-1	warning	CodeSystem.url	URL should not contain | or # - these characters make processing canonical references problematic	exists() implies matches('^[^|# ]+$')
csd-1	error	CodeSystem	Within a code system definition, all the codes SHALL be unique	concept.exists() implies concept.code.combine(%resource.concept.descendants().concept.code).isDistinct()
csd-2	warning	CodeSystem	If there is an explicit hierarchy, a hierarchyMeaning should be provided	concept.concept.exists() implies hierarchyMeaning.exists()
csd-3	warning	CodeSystem	If there is an implicit hierarchy, a hierarchyMeaning should be provided	concept.where(property.code = 'parent' or property.code = 'child').exists() implies hierarchyMeaning.exists()
csd-4	error	CodeSystem	If the code system content = supplement, it must nominate what it's a supplement for	CodeSystem.content = 'supplement' implies CodeSystem.supplements.exists()
csd-5	error	CodeSystem.concept.designation	Must have a value for concept.designation.use if concept.designation.additionalUse is present	additionalUse.exists() implies use.exists()
ele-1	error	CodeSystem.meta, CodeSystem.implicitRules, CodeSystem.language, CodeSystem.text, CodeSystem.extension, CodeSystem.modifierExtension, CodeSystem.url, CodeSystem.identifier, CodeSystem.version, CodeSystem.versionAlgorithm[x], CodeSystem.name, CodeSystem.title, CodeSystem.status, CodeSystem.experimental, CodeSystem.date, CodeSystem.publisher, CodeSystem.contact, CodeSystem.description, CodeSystem.useContext, CodeSystem.jurisdiction, CodeSystem.purpose, CodeSystem.copyright, CodeSystem.copyrightLabel, CodeSystem.approvalDate, CodeSystem.lastReviewDate, CodeSystem.effectivePeriod, CodeSystem.topic, CodeSystem.author, CodeSystem.editor, CodeSystem.reviewer, CodeSystem.endorser, CodeSystem.relatedArtifact, CodeSystem.caseSensitive, CodeSystem.valueSet, CodeSystem.hierarchyMeaning, CodeSystem.compositional, CodeSystem.versionNeeded, CodeSystem.content, CodeSystem.supplements, CodeSystem.count, CodeSystem.filter, CodeSystem.filter.extension, CodeSystem.filter.modifierExtension, CodeSystem.filter.code, CodeSystem.filter.description, CodeSystem.filter.operator, CodeSystem.filter.value, CodeSystem.property, CodeSystem.property.extension, CodeSystem.property.modifierExtension, CodeSystem.property.code, CodeSystem.property.uri, CodeSystem.property.description, CodeSystem.property.type, CodeSystem.concept, CodeSystem.concept.extension, CodeSystem.concept.modifierExtension, CodeSystem.concept.code, CodeSystem.concept.display, CodeSystem.concept.definition, CodeSystem.concept.designation, CodeSystem.concept.designation.extension, CodeSystem.concept.designation.modifierExtension, CodeSystem.concept.designation.language, CodeSystem.concept.designation.use, CodeSystem.concept.designation.additionalUse, CodeSystem.concept.designation.value, CodeSystem.concept.property, CodeSystem.concept.property.extension, CodeSystem.concept.property.modifierExtension, CodeSystem.concept.property.code, CodeSystem.concept.property.value[x], CodeSystem.concept.concept	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
ext-1	error	CodeSystem.extension, CodeSystem.modifierExtension, CodeSystem.filter.extension, CodeSystem.filter.modifierExtension, CodeSystem.property.extension, CodeSystem.property.modifierExtension, CodeSystem.concept.extension, CodeSystem.concept.modifierExtension, CodeSystem.concept.designation.extension, CodeSystem.concept.designation.modifierExtension, CodeSystem.concept.property.extension, CodeSystem.concept.property.modifierExtension	Must have either extensions or value[x], not both	extension.exists() != value.exists()

This structure is derived from CodeSystem

Summary

Maturity: 0

Key Elements View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
CodeSystem	C	0..*	CodeSystem(5.0.0)	Declares the existence of and describes a code system or code system supplement Constraints: cnl-0, csd-1, csd-2, csd-3, csd-4
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
contained		0..*	Resource	Contained, inline Resources
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored Constraints: ext-1
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
hierarchyMeaning	ΣC	0..1	code	grouped-by | is-a | part-of | classified-with Binding: CodeSystemHierarchyMeaning (required): The meaning of the hierarchy of concepts in a code system.
content	ΣC	1..1	code	not-present | example | fragment | complete | supplement Binding: CodeSystemContentMode (required): The extent of the content of the code system (the concepts and codes it defines) are represented in a code system resource.
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
CodeSystem.status	Base	required	PublicationStatus	📍5.0.0	FHIR Std.
CodeSystem.hierarchyMeaning	Base	required	Code System Hierarchy Meaning	📍5.0.0	FHIR Std.
CodeSystem.content	Base	required	Code System Content Mode	📍5.0.0	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
cnl-0	warning	CodeSystem	Name should be usable as an identifier for the module by machine processing applications such as code generation	name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')
csd-1	error	CodeSystem	Within a code system definition, all the codes SHALL be unique	concept.exists() implies concept.code.combine(%resource.concept.descendants().concept.code).isDistinct()
csd-2	warning	CodeSystem	If there is an explicit hierarchy, a hierarchyMeaning should be provided	concept.concept.exists() implies hierarchyMeaning.exists()
csd-3	warning	CodeSystem	If there is an implicit hierarchy, a hierarchyMeaning should be provided	concept.where(property.code = 'parent' or property.code = 'child').exists() implies hierarchyMeaning.exists()
csd-4	error	CodeSystem	If the code system content = supplement, it must nominate what it's a supplement for	CodeSystem.content = 'supplement' implies CodeSystem.supplements.exists()
ele-1	error	CodeSystem.implicitRules, CodeSystem.modifierExtension, CodeSystem.status, CodeSystem.hierarchyMeaning, CodeSystem.content	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
ext-1	error	CodeSystem.modifierExtension	Must have either extensions or value[x], not both	extension.exists() != value.exists()

Differential View

This structure is derived from CodeSystem

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
CodeSystem		0..*	CodeSystem(5.0.0)	Declares the existence of and describes a code system or code system supplement
Documentation for this format

Snapshot View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
CodeSystem	C	0..*	CodeSystem(5.0.0)	Declares the existence of and describes a code system or code system supplement Constraints: cnl-0, csd-1, csd-2, csd-3, csd-4
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: AllLanguages (required): IETF language tag for a human language Additional Bindings Purpose CommonLanguages Starter
text		0..1	Narrative	Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored Constraints: ext-1
url	ΣC	0..1	uri	Canonical identifier for this code system, represented as a URI (globally unique) (Coding.system) Constraints: cnl-1
identifier	Σ	0..*	Identifier	Additional identifier for the code system (business identifier)
version	Σ	0..1	string	Business version of the code system (Coding.version)
versionAlgorithm[x]	Σ	0..1		How to compare versions Binding: VersionAlgorithm (extensible)
versionAlgorithmString			string
versionAlgorithmCoding			Coding
name	ΣC	0..1	string	Name for this code system (computer friendly)
title	Σ	0..1	string	Name for this code system (human friendly)
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
experimental	Σ	0..1	boolean	For testing purposes, not real usage
date	Σ	0..1	dateTime	Date last changed
publisher	Σ	0..1	string	Name of the publisher/steward (organization or individual)
contact	Σ	0..*	ContactDetail	Contact details for the publisher
description		0..1	markdown	Natural language description of the code system
useContext	Σ	0..*	UsageContext	The context that the content is intended to support
jurisdiction	Σ	0..*	CodeableConcept	Intended jurisdiction for code system (if applicable) Binding: JurisdictionValueSet (extensible): Countries and regions within which this artifact is targeted for use.
purpose		0..1	markdown	Why this code system is defined
copyright		0..1	markdown	Use and/or publishing restrictions
copyrightLabel		0..1	string	Copyright holder and year(s)
approvalDate		0..1	date	When the CodeSystem was approved by publisher
lastReviewDate		0..1	date	When the CodeSystem was last reviewed by the publisher
effectivePeriod	Σ	0..1	Period	When the CodeSystem is expected to be used
topic		0..*	CodeableConcept	E.g. Education, Treatment, Assessment, etc Binding: DefinitionTopic (example)
author		0..*	ContactDetail	Who authored the CodeSystem
editor		0..*	ContactDetail	Who edited the CodeSystem
reviewer		0..*	ContactDetail	Who reviewed the CodeSystem
endorser		0..*	ContactDetail	Who endorsed the CodeSystem
relatedArtifact		0..*	RelatedArtifact	Additional documentation, citations, etc
caseSensitive	Σ	0..1	boolean	If code comparison is case sensitive
valueSet	Σ	0..1	canonical(ValueSet)	Canonical reference to the value set with entire code system
hierarchyMeaning	ΣC	0..1	code	grouped-by | is-a | part-of | classified-with Binding: CodeSystemHierarchyMeaning (required): The meaning of the hierarchy of concepts in a code system.
compositional	Σ	0..1	boolean	If code system defines a compositional grammar
versionNeeded	Σ	0..1	boolean	If definitions are not stable
content	ΣC	1..1	code	not-present | example | fragment | complete | supplement Binding: CodeSystemContentMode (required): The extent of the content of the code system (the concepts and codes it defines) are represented in a code system resource.
supplements	ΣC	0..1	canonical(CodeSystem)	Canonical URL of Code System this adds designations and properties to
count	Σ	0..1	unsignedInt	Total concepts in the code system
filter	Σ	0..*	BackboneElement	Filter that can be used in a value set
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized Constraints: ext-1
code	Σ	1..1	code	Code that identifies the filter
description	Σ	0..1	string	How or why the filter is used
operator	Σ	1..*	code	= | is-a | descendent-of | is-not-a | regex | in | not-in | generalizes | child-of | descendent-leaf | exists Binding: FilterOperator (required): The kind of operation to perform as a part of a property based filter.
value	Σ	1..1	string	What to use for the value
property	Σ	0..*	BackboneElement	Additional information supplied about each concept
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized Constraints: ext-1
code	Σ	1..1	code	Identifies the property on the concepts, and when referred to in operations
uri	Σ	0..1	uri	Formal identifier for the property
description	Σ	0..1	string	Why the property is defined, and/or what it conveys
type	Σ	1..1	code	code | Coding | string | integer | boolean | dateTime | decimal Binding: PropertyType (required): The type of a property value.
concept	C	0..*	BackboneElement	Concepts in the code system
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized Constraints: ext-1
code	C	1..1	code	Code that identifies concept
display		0..1	string	Text to display to the user
definition		0..1	string	Formal definition
designation	C	0..*	BackboneElement	Additional representations for the concept Constraints: csd-5
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized Constraints: ext-1
language		0..1	code	Human language of the designation Binding: AllLanguages (required): IETF language tag for a human language Additional Bindings Purpose CommonLanguages Starter
use	C	0..1	Coding	Details how this designation would be used Binding: DesignationUse (extensible): Details of how a designation would be used.
additionalUse	C	0..*	Coding	Additional ways how this designation would be used Binding: DesignationUse (extensible): Details of how a designation would be used.
value		1..1	string	The text value for this designation
property		0..*	BackboneElement	Property value for the concept
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Constraints: ext-1
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized Constraints: ext-1
code	C	1..1	code	Reference to CodeSystem.property.code
value[x]		1..1		Value of the property for this concept
valueCode			code
valueCoding			Coding
valueString			string
valueInteger			integer
valueBoolean			boolean
valueDateTime			dateTime
valueDecimal			decimal
concept	C	0..*	See concept (CodeSystem)	Child Concepts (is-a/contains/categorizes)
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
CodeSystem.language	Base	required	All Languages	📍5.0.0	FHIR Std.
CodeSystem.versionAlgorithm[x]	Base	extensible	Version Algorithm	📍5.0.0	FHIR Std.
CodeSystem.status	Base	required	PublicationStatus	📍5.0.0	FHIR Std.
CodeSystem.jurisdiction	Base	extensible	Jurisdiction ValueSet	📍5.0.0	FHIR Std.
CodeSystem.topic	Base	example	Definition Topic	📍5.0.0	FHIR Std.
CodeSystem.hierarchyMeaning	Base	required	Code System Hierarchy Meaning	📍5.0.0	FHIR Std.
CodeSystem.content	Base	required	Code System Content Mode	📍5.0.0	FHIR Std.
CodeSystem.filter.operator	Base	required	Filter Operator	📍5.0.0	FHIR Std.
CodeSystem.property.​type	Base	required	Property Type	📍5.0.0	FHIR Std.
CodeSystem.concept.designation.​language	Base	required	All Languages	📍5.0.0	FHIR Std.
CodeSystem.concept.designation.​use	Base	extensible	Designation Use	📍5.0.0	FHIR Std.
CodeSystem.concept.designation.​additionalUse	Base	extensible	Designation Use	📍5.0.0	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
cnl-0	warning	CodeSystem	Name should be usable as an identifier for the module by machine processing applications such as code generation	name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')
cnl-1	warning	CodeSystem.url	URL should not contain | or # - these characters make processing canonical references problematic	exists() implies matches('^[^|# ]+$')
csd-1	error	CodeSystem	Within a code system definition, all the codes SHALL be unique	concept.exists() implies concept.code.combine(%resource.concept.descendants().concept.code).isDistinct()
csd-2	warning	CodeSystem	If there is an explicit hierarchy, a hierarchyMeaning should be provided	concept.concept.exists() implies hierarchyMeaning.exists()
csd-3	warning	CodeSystem	If there is an implicit hierarchy, a hierarchyMeaning should be provided	concept.where(property.code = 'parent' or property.code = 'child').exists() implies hierarchyMeaning.exists()
csd-4	error	CodeSystem	If the code system content = supplement, it must nominate what it's a supplement for	CodeSystem.content = 'supplement' implies CodeSystem.supplements.exists()
csd-5	error	CodeSystem.concept.designation	Must have a value for concept.designation.use if concept.designation.additionalUse is present	additionalUse.exists() implies use.exists()
ele-1	error	CodeSystem.meta, CodeSystem.implicitRules, CodeSystem.language, CodeSystem.text, CodeSystem.extension, CodeSystem.modifierExtension, CodeSystem.url, CodeSystem.identifier, CodeSystem.version, CodeSystem.versionAlgorithm[x], CodeSystem.name, CodeSystem.title, CodeSystem.status, CodeSystem.experimental, CodeSystem.date, CodeSystem.publisher, CodeSystem.contact, CodeSystem.description, CodeSystem.useContext, CodeSystem.jurisdiction, CodeSystem.purpose, CodeSystem.copyright, CodeSystem.copyrightLabel, CodeSystem.approvalDate, CodeSystem.lastReviewDate, CodeSystem.effectivePeriod, CodeSystem.topic, CodeSystem.author, CodeSystem.editor, CodeSystem.reviewer, CodeSystem.endorser, CodeSystem.relatedArtifact, CodeSystem.caseSensitive, CodeSystem.valueSet, CodeSystem.hierarchyMeaning, CodeSystem.compositional, CodeSystem.versionNeeded, CodeSystem.content, CodeSystem.supplements, CodeSystem.count, CodeSystem.filter, CodeSystem.filter.extension, CodeSystem.filter.modifierExtension, CodeSystem.filter.code, CodeSystem.filter.description, CodeSystem.filter.operator, CodeSystem.filter.value, CodeSystem.property, CodeSystem.property.extension, CodeSystem.property.modifierExtension, CodeSystem.property.code, CodeSystem.property.uri, CodeSystem.property.description, CodeSystem.property.type, CodeSystem.concept, CodeSystem.concept.extension, CodeSystem.concept.modifierExtension, CodeSystem.concept.code, CodeSystem.concept.display, CodeSystem.concept.definition, CodeSystem.concept.designation, CodeSystem.concept.designation.extension, CodeSystem.concept.designation.modifierExtension, CodeSystem.concept.designation.language, CodeSystem.concept.designation.use, CodeSystem.concept.designation.additionalUse, CodeSystem.concept.designation.value, CodeSystem.concept.property, CodeSystem.concept.property.extension, CodeSystem.concept.property.modifierExtension, CodeSystem.concept.property.code, CodeSystem.concept.property.value[x], CodeSystem.concept.concept	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
ext-1	error	CodeSystem.extension, CodeSystem.modifierExtension, CodeSystem.filter.extension, CodeSystem.filter.modifierExtension, CodeSystem.property.extension, CodeSystem.property.modifierExtension, CodeSystem.concept.extension, CodeSystem.concept.modifierExtension, CodeSystem.concept.designation.extension, CodeSystem.concept.designation.modifierExtension, CodeSystem.concept.property.extension, CodeSystem.concept.property.modifierExtension	Must have either extensions or value[x], not both	extension.exists() != value.exists()

This structure is derived from CodeSystem

Summary

Maturity: 0

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