Page Status: updated 2023-09-05

ValueSet

Page index

Introduction
Overview
Details
Supported operations

Introduction

The ValueSet resource, shown in the profile NLLValueSet, represents a set of codes that is used in a specific context.

The codes in a value set are a combination of codes from one or many code systems. The value set can include all codes in a code system, or only a subset of the codes from the code system.

Coded values are used in many different resources, e.g. Medication, MedicationRequest etc. Elements of type 'code' or 'Coding' are bound to a value set in a profile. However when data is exchanged in run time, coded values are described by the code and the code system, not by the value set.

Overview

ValueSet	I		ValueSet	There are no (further) constraints on this element Element id ValueSet Short description A set of codes drawn from one or more code systems Definition A ValueSet resource instance specifies a set of codes drawn from one or more code systems, intended for use in a particular context. Value sets link between CodeSystem definitions and their use in coded elements. Data type ValueSet Constraints dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources `contained.contained.empty()` dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()` dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource `contained.where((('#'+id in (%resource.descendants().reference \| %resource.descendants().as(canonical) \| %resource.descendants().as(uri) \| %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()` dom-6: A resource should have narrative for robust management text.`div`.exists() dom-5: If a resource is contained in another resource, it SHALL NOT have a security label `contained.meta.security.empty()` vsd-0: Name should be usable as an identifier for the module by machine processing applications such as code generation `name.matches('[A-Z]([A-Za-z0-9_]){0,254}')` Mappings rim: Entity. Role, or Act rim: N/A
id	S Σ	0..1	string	Element id ValueSet.id Short description Logical id of this artifact Definition The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes. Comments The only time that a resource does not have an id is when it is being submitted to the server using a create operation. Data type string Mappings EHM: Värdemängds-id
meta	Σ	0..1	Meta	There are no (further) constraints on this element Element id ValueSet.meta Short description Metadata about the resource Definition The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource. Data type Meta Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A
implicitRules	Σ ?!	0..1	uri	There are no (further) constraints on this element Element id ValueSet.implicitRules Short description A set of rules under which this content was created Definition A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc. Comments Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
language		0..1	codeBinding	There are no (further) constraints on this element Element id ValueSet.language Short description Language of the resource content Definition The base language in which the resource is written. Comments Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute). Data type code Binding A human language. CommonLanguages (preferred) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
text		0..1	Narrative	There are no (further) constraints on this element Element id ValueSet.text Short description Text summary of the resource, for human interpretation Alternate names narrative, html, xhtml, display Definition A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety. Comments Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later. Data type Narrative Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A rim: Act.text?
contained		0..*	Resource	There are no (further) constraints on this element Element id ValueSet.contained Short description Contained, inline Resources Alternate names inline resources, anonymous resources, contained resources Definition These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope. Comments This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels. Data type Resource Mappings rim: Entity. Role, or Act rim: N/A
extension	I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	?! I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
url	S Σ	0..1	uri	There are no (further) constraints on this element Element id ValueSet.url Short description Canonical identifier for this value set, represented as a URI (globally unique) Definition An absolute URI that is used to identify this value set when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which at which an authoritative instance of this value set is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the value set is stored on different servers. Requirements Allows the value set to be referenced by a single globally unique identifier. Comments Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred. Multiple instances may share the same URL if they have a distinct version. The determination of when to create a new version of a resource (same url, new version) vs. defining a new artifact is up to the author. Considerations for making this decision are found in Technical and Business Versions. In some cases, the resource can no longer be found at the stated url, but the url itself cannot change. Implementations can use the meta.source element to indicate where the current master source of the resource can be found. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.url w5: FiveWs.identifier rim: N/A
identifier	Σ	0..*	Identifier	There are no (further) constraints on this element Element id ValueSet.identifier Short description Additional identifier for the value set (business identifier) Definition A formal identifier that is used to identify this value set when it is represented in other formats, or referenced in a specification, model, design or an instance. Requirements Allows externally provided and/or usable business identifiers to be easily associated with the module. Comments Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this value set outside of FHIR, where it is not possible to use the logical URI. Data type Identifier Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a v2: CX / EI (occasionally, more often EI maps to a resource id or a URL) rim: II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT] servd: Identifier workflow: Definition.identifier w5: FiveWs.identifier objimpl: no-gen-base
version	S Σ	0..1	string	Element id ValueSet.version Short description Business version of the value set Definition The identifier that is used to identify this version of the value set when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the value set author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence. Comments There may be different value set instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a reference to a particular business version of the value set with the format [url]\|[version]. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.version w5: FiveWs.version EHM: Version
name	S Σ I	0..1	string	Element id ValueSet.name Short description Name for this value set (computer friendly) Definition A natural language name identifying the value set. This name should be usable as an identifier for the module by machine processing applications such as code generation. Requirements Support human navigation and code generation. Comments The name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly.A name should be provided unless the value set is a contained resource (e.g. an anonymous value set in a profile). Most registries will require a name. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a EHM: Tekniskt namn
title	S Σ	0..1	string	Element id ValueSet.title Short description Name for this value set (human friendly) Definition A short, descriptive, user-friendly title for the value set. Comments This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.title EHM: Namn
status	S Σ ?!	1..1	codeBinding	Element id ValueSet.status Short description draft \| active \| retired \| unknown Definition The status of this value set. Enables tracking the life-cycle of the content. The status of the value set applies to the value set definition (ValueSet.compose) and the associated ValueSet metadata. Expansions do not have a state. Comments Allows filtering of value sets that are appropriate for use versus not.See also the valueset-workflowStatus extension for additional status information related to the editorial process. Data type code Binding The lifecycle status of an artifact. PublicationStatus (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.status w5: FiveWs.status EHM: Status
experimental	Σ	0..1	boolean	There are no (further) constraints on this element Element id ValueSet.experimental Short description For testing purposes, not real usage Definition A Boolean value to indicate that this value set is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage. Requirements Enables experimental content to be developed following the same lifecycle that would be used for a production-level value set. Comments Allows filtering of value sets that are appropriate for use versus not. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.experimental w5: FiveWs.class
date	S Σ	0..1	dateTime	Element id ValueSet.date Short description Date last changed Alternate names Revision Date Definition The date (and optionally time) when the value set was created or revised (e.g. the 'content logical definition'). Comments Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the value set. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource. Data type dateTime Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.date w5: FiveWs.recorded rim: N/A EHM: Revisionsdatum
publisher	S Σ	0..1	string	Element id ValueSet.publisher Short description Name of the publisher (organization or individual) Definition The name of the organization or individual that published the value set. Requirements Helps establish the "authority/credibility" of the value set. May also allow for contact. Comments Usually an organization but may be an individual. The publisher (or steward) of the value set is the organization or individual primarily responsible for the maintenance and upkeep of the value set. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the value set. This item SHOULD be populated unless the information is available from context. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.publisher w5: FiveWs.witness EHM: Utgivare
contact	Σ	0..*	ContactDetail	There are no (further) constraints on this element Element id ValueSet.contact Short description Contact details for the publisher Definition Contact details to assist a user in finding and communicating with the publisher. Comments May be a web site, an email address, a telephone number, etc. Data type ContactDetail Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.contact
description	S	0..1	markdown	Element id ValueSet.description Short description Natural language description of the value set Alternate names Scope, Purpose Definition A free text natural language description of the value set from a consumer's perspective. The textual description specifies the span of meanings for concepts to be included within the Value Set Expansion, and also may specify the intended use and limitations of the Value Set. Comments This description can be used to capture details such as why the value set was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the value set as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the value set is presumed to be the predominant language in the place the value set was created).The description is not intended to describe the semantics of the Value Set - there are no intrinsic semantics separate from the codes contained in its expansion. The description should capture its intended use, which is needed for ensuring integrity for its use in models across future changes. A description should be provided unless the value set is a contained resource (e.g. an anonymous value set in a profile). Most registries will require a description. Data type markdown Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.description rim: N/A EHM: Beskrivning
useContext	Σ	0..*	UsageContext	There are no (further) constraints on this element Element id ValueSet.useContext Short description The context that the content is intended to support Definition The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate value set instances. Requirements Assist in searching for appropriate content. Comments When multiple useContexts are specified, there is no expectation that all or any of the contexts apply. Data type UsageContext Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.useContext
jurisdiction	Σ	0..*	CodeableConceptBinding	There are no (further) constraints on this element Element id ValueSet.jurisdiction Short description Intended jurisdiction for value set (if applicable) Definition A legal or geographic region in which the value set is intended to be used. Comments It may be possible for the value set to be used in jurisdictions other than those for which it was originally designed or intended. Data type CodeableConcept Binding Countries and regions within which this artifact is targeted for use. Jurisdiction ValueSet (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD workflow: Definition.jurisdiction
immutable	Σ	0..1	boolean	There are no (further) constraints on this element Element id ValueSet.immutable Short description Indicates whether or not any change to the content logical definition may occur Definition If this is set to 'true', then no new versions of the content logical definition can be created. Note: Other metadata might still change. Comments Normally immutability is set to 'false', which is the default assumption if it is not populated. Note that the implication is that if this is set to 'true', there may be only one ValueSet version for this definition. Immutability tends to be set to 'true' in one of two cases: - Where the value set, by the nature of its usage, cannot change. For example "All specializations of ACT in ActClassCode" - Where there's no safe way to express the "Purpose" such that someone else could safely make changes to the value set definition. Source workflow control must guarantee that the same URI always yields the same definition. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
purpose		0..1	markdown	There are no (further) constraints on this element Element id ValueSet.purpose Short description Why this value set is defined Definition Explanation of why this value set is needed and why it has been designed as it has. Comments This element does not describe the usage of the value set. Instead, it provides traceability of ''why'' the resource is either needed or ''why'' it is defined as it is. This may be used to point to source materials or specifications that drove the structure of this value set. Data type markdown Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.purpose w5: FiveWs.why[x] objimpl: no-gen-base
copyright		0..1	markdown	There are no (further) constraints on this element Element id ValueSet.copyright Short description Use and/or publishing restrictions Alternate names License, Restrictions Definition A copyright statement relating to the value set and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the value set. Requirements Consumers must be able to determine any legal restrictions on the use of the value set and/or its content. Comments nullFrequently, the copyright differs between the value set and the codes that are included. The copyright statement should clearly differentiate between these when required. Data type markdown Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Definition.copyright objimpl: no-gen-base
compose	S	0..1	BackboneElement	There are no (further) constraints on this element Element id ValueSet.compose Short description Content logical definition of the value set (CLD) Alternate names Content Logical Definition, CLD Definition A set of criteria that define the contents of the value set by including or excluding codes selected from the specified code system(s) that the value set draws from. This is also known as the Content Logical Definition (CLD). Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
id		0..1	string	There are no (further) constraints on this element Element id ValueSet.compose.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.compose.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.compose.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
lockedDate	Σ	0..1	date	There are no (further) constraints on this element Element id ValueSet.compose.lockedDate Short description Fixed date for references with no specified version (transitive) Definition The Locked Date is the effective date that is used to determine the version of all referenced Code Systems and Value Set Definitions included in the compose that are not already tied to a specific version. Comments With a defined lockedDate the value set is considered "Locked". Otherwise, the value set may have different expansions as underlying code systems and/or value sets evolve. The interpretation of lockedDate is often dependent on the context - e.g. a SNOMED CT derived value set with a lockedDate will have a different expansion in USA than in UK. If a value set specifies a version for include and exclude statements, and also specifies a locked date, the specified versions need to be available that date, or the value set will not be usable. Data type date Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a w5: FiveWs.init
inactive	Σ	0..1	boolean	There are no (further) constraints on this element Element id ValueSet.compose.inactive Short description Whether inactive codes are in the value set Definition Whether inactive codes - codes that are not approved for current use - are in the value set. If inactive = true, inactive codes are to be included in the expansion, if inactive = false, the inactive codes will not be included in the expansion. If absent, the behavior is determined by the implementation, or by the applicable $expand parameters (but generally, inactive codes would be expected to be included). Comments Note that in the FHIR terminology framework, "deprecated" does not mean inactive, but in some code systems, e.g. LOINC, "deprecated" does mean inactive. Code systems should define what codes are considered to be inactive. If this is not clearly defined (including in the FHIR code system resource), then all codes are assumed to be active. The Value Set Definition specification defines an ActiveOnly element, which is the reverse of this element e.g. (ValueSet.compose.inactive=FALSE) is the same as (VSD.ActiveOnly=TRUE). Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
include	S Σ I	1..*	BackboneElement	Element id ValueSet.compose.include Short description Include one or more codes from a code system or other value set(s) Definition Include one or more codes from a code system or other value set(s). Comments All the conditions in an include must be true. If a system is listed, all the codes from the system are listed. If one or more filters are listed, all of the filters must apply. If one or more value sets are listed, the codes must be in all the value sets. E.g. each include is 'include all the codes that meet all these conditions'. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` vsd-2: A value set with concepts or filters SHALL include a system `(concept.exists() or filter.exists()) implies system.exists()` vsd-3: Cannot have both concept and filter `concept.empty() or filter.empty()` vsd-1: A value set include/exclude SHALL have a value set or a system `valueSet.exists() or system.exists()` Mappings rim: n/a rim: N/A EHM: Kodsystem
id		0..1	string	There are no (further) constraints on this element Element id ValueSet.compose.include.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.compose.include.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.compose.include.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system	S Σ I	0..1	uri	Element id ValueSet.compose.include.system Short description The system the codes come from Definition An absolute URI which is the code system from which the selected codes come from. Comments If there are no codes or filters, the entire code system is included. Note that the set of codes that are included may contain abstract codes. See ''Coding.system'' for further documentation about the correct value for the system element. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A EHM: Kodsystem referens
version	S Σ	0..1	string	Element id ValueSet.compose.include.version Short description Specific version of the code system referred to Definition The version of the code system that the codes are selected from, or the special version '' for all versions. Comments* This is used when selecting the descendants of a concept - they may change between versions. If no version is specified, then the exact contents of the value set might not be known until a context of use binds it to a particular version. The special value '' means all versions; It is at server discretion regarding expansions and which versions must be supported. Data type* string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A EHM: Kodsystem version
concept	S I	0..*	BackboneElement	Element id ValueSet.compose.include.concept Short description A concept defined in the system Definition Specifies a concept to be included or excluded. Comments The list of concepts is considered ordered, though the order might not have any particular significance. Typically, the order of an expansion follows that defined in the compose element. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A EHM: Koncept
id		0..1	string	There are no (further) constraints on this element Element id ValueSet.compose.include.concept.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	Element id ValueSet.compose.include.concept.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
definition	S I	0..1	Extension(string)	Element id ValueSet.compose.include.concept.extension:definition Short description A definition for this code Alternate names extensions, user content Definition A definition that describes the meaning of this code when used as part of this value set. Comments This is provided for when the source code system doesn't actually provide a definition (there are many such). Providing an definition for a code SHOULD NOT be done where the underlying code system provides a definition. Data type Extension(string) Extension URL http://hl7.org/fhir/StructureDefinition/valueset-concept-definition Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.compose.include.concept.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
code	S	1..1	code	Element id ValueSet.compose.include.concept.code Short description Code or expression from system Definition Specifies a code for the concept to be included or excluded. Comments Expressions are allowed if defined by the underlying code system. Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A EHM: Kod
display	S	0..1	string	Element id ValueSet.compose.include.concept.display Short description Text to display for this code for this value set in this valueset Definition The text to display to the user for this concept in the context of this valueset. If no display is provided, then applications using the value set use the display specified for the code by the system. Comments The value set resource allows for an alternative display to be specified for when this concept is used in this particular value set. See notes in the value set narrative about the correct use of this element. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A EHM: Term
designation	S	0..*	BackboneElement	Element id ValueSet.compose.include.concept.designation Short description Additional representations for this concept Definition Additional representations for this concept when used in this value set - other languages, aliases, specialized purposes, used for particular purposes, etc. Comments Concepts have both a `display` and an array of `designation`. The display is equivalent to a special designation with an implied `designation.use` of "primary code" and a language equal to the Resource Language. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a EHM: Ytterligare benämningar
id		0..1	string	There are no (further) constraints on this element Element id ValueSet.compose.include.concept.designation.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.compose.include.concept.designation.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.compose.include.concept.designation.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
language	S	0..1	codeBinding	Element id ValueSet.compose.include.concept.designation.language Short description Human language of the designation Definition The language this designation is defined for. Comments In the absence of a language, the resource language applies. Data type code Binding A human language. CommonLanguages (preferred) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a EHM: Språk
use	S	0..1	CodingBinding	Element id ValueSet.compose.include.concept.designation.use Short description Types of uses of designations Definition A code that represents types of uses of designations. Comments If no use is provided, the designation can be assumed to be suitable for general display to a human user. Data type Coding Binding Details of how a designation would be used. http://electronichealth.se/fhir/ValueSet/nll-snomed-designation-use (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding EHM: Alternativ benämningstyp
id		0..1	string	There are no (further) constraints on this element Element id ValueSet.compose.include.concept.designation.use.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.compose.include.concept.designation.use.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system	S Σ	0..1	uriBinding	Element id ValueSet.compose.include.concept.designation.use.system Short description Identity of the terminology system Definition The identification of the code system that defines the meaning of the symbol in the code. Requirements Need to be unambiguous about the source of the definition of the symbol. Comments The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously. Data type uri Binding http://electronichealth.se/fhir/ValueSet/concept-discriminators (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a v2: CE.3 rim:* ./codeSystem orim: fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem EHM: Alternativ benämningssystemreferens
version	Σ	0..1	string	There are no (further) constraints on this element Element id ValueSet.compose.include.concept.designation.use.version Short description Version of the system - if relevant Definition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Comments Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a v2: CE.7 rim:* ./codeSystemVersion orim: fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion
code	S Σ	0..1	code	Element id ValueSet.compose.include.concept.designation.use.code Short description Symbol in syntax defined by the system Definition A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Requirements Need to refer to a particular code in the system. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a v2: CE.1 rim:* ./code orim: fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code EHM: Alternativ benämningskod
display	S Σ	0..1	string	Element id ValueSet.compose.include.concept.designation.use.display Short description Representation defined by the system Definition A representation of the meaning of the code in the system, following the rules of the system. Requirements Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a v2: CE.2 - but note this is not well followed rim:* CV.displayName orim: fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName EHM: Alternativ benämningsterm
userSelected	Σ	0..1	boolean	There are no (further) constraints on this element Element id ValueSet.compose.include.concept.designation.use.userSelected Short description If this coding was chosen directly by the user Definition Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). Requirements This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Comments Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a v2: Sometimes implied by being first rim: CD.codingRationale orim: fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]
value	S	1..1	string	Element id ValueSet.compose.include.concept.designation.value Short description The text value for this designation Definition The text value for this designation. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a EHM: Alternativ term
filter	Σ I	0..*	BackboneElement	There are no (further) constraints on this element Element id ValueSet.compose.include.filter Short description Select codes/concepts by their properties (including relationships) Definition Select concepts by specify a matching criterion based on the properties (including relationships) defined by the system, or on filters defined by the system. If multiple filters are specified, they SHALL all be true. Comments Selecting codes by specifying filters based on properties is only possible where the underlying code system defines appropriate properties. Note that in some cases, the underlying code system defines the logical concepts but not the literal codes for the concepts. In such cases, the literal definitions may be provided by a third party. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A
id		0..1	string	There are no (further) constraints on this element Element id ValueSet.compose.include.filter.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.compose.include.filter.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.compose.include.filter.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
property	Σ	1..1	code	There are no (further) constraints on this element Element id ValueSet.compose.include.filter.property Short description A property/filter defined by the code system Definition A code that identifies a property or a filter defined in the code system. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A
op	Σ	1..1	codeBinding	There are no (further) constraints on this element Element id ValueSet.compose.include.filter.op Short description = \| is-a \| descendent-of \| is-not-a \| regex \| in \| not-in \| generalizes \| exists Definition The kind of operation to perform as a part of the filter criteria. Comments In case filter.property represents a property of the system, the operation applies to the selected property. In case filter.property represents a filter of the system, the operation SHALL match one of the CodeSystem.filter.operator values. Data type code Binding The kind of operation to perform as a part of a property based filter. FilterOperator (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A
value	Σ	1..1	string	There are no (further) constraints on this element Element id ValueSet.compose.include.filter.value Short description Code from the system, or regex criteria, or boolean value for exists Definition The match value may be either a code defined by the system, or a string value, which is a regex match on the literal string of the property value (if the filter represents a property defined in CodeSystem) or of the system filter value (if the filter represents a filter defined in CodeSystem) when the operation is 'regex', or one of the values (true and false), when the operation is 'exists'. Comments Use regex matching with care - full regex matching on every SNOMED CT term is prohibitive, for example. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A
valueSet	Σ I	0..*	canonical(ValueSet)	There are no (further) constraints on this element Element id ValueSet.compose.include.valueSet Short description Select the contents included in this value set Definition Selects the concepts found in this value set (based on its value set definition). This is an absolute URI that is a reference to ValueSet.url. If multiple value sets are specified this includes the union of the contents of all of the referenced value sets. Comments The value set URI is either a logical reference to a defined value set such as a SNOMED CT reference set, or a direct reference to a value set definition using ValueSet.url. The reference might not refer to an actual FHIR ValueSet resource; in this case, whatever is referred to is an implicit definition of a value set that needs to be clear about how versions are resolved. Data type canonical(ValueSet) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A
exclude	I	0..*	see (include)	There are no (further) constraints on this element Element id ValueSet.compose.exclude Short description Explicitly exclude codes from a code system or other value sets Definition Exclude one or more codes from the value set based on code system filters and/or other value sets. Comments Usually this is used to selectively exclude codes that were included by subsumption in the inclusions. Any display names specified for the codes are ignored. Mappings rim: N/A
expansion		0..1	BackboneElement	There are no (further) constraints on this element Element id ValueSet.expansion Short description Used when the value set is "expanded" Definition A value set can also be "expanded", where the value set is turned into a simple collection of enumerated codes. This element holds the expansion, if it has been performed. Comments Expansion is performed to produce a collection of codes that are ready to use for data entry or validation. Value set expansions are always considered to be stateless - they are a record of the set of codes in the value set at a point in time under a given set of conditions, and are not subject to ongoing maintenance. Expansion.parameter is a simplified list of parameters - a subset of the features of the Parameters resource. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
id		0..1	string	There are no (further) constraints on this element Element id ValueSet.expansion.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.expansion.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.expansion.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
identifier		0..1	uri	There are no (further) constraints on this element Element id ValueSet.expansion.identifier Short description Identifies the value set expansion (business identifier) Definition An identifier that uniquely identifies this expansion of the valueset, based on a unique combination of the provided parameters, the system default parameters, and the underlying system code system versions etc. Systems may re-use the same identifier as long as those factors remain the same, and the expansion is the same, but are not required to do so. This is a business identifier. Comments Typically, this uri is a UUID (e.g. urn:uuid:8230ff20-c97a-4167-a59d-dc2cb9df16dd). Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
timestamp		1..1	dateTime	There are no (further) constraints on this element Element id ValueSet.expansion.timestamp Short description Time ValueSet expansion happened Definition The time at which the expansion was produced by the expanding system. Comments This SHOULD be a fully populated instant, but in some circumstances, value sets are expanded by hand, and the expansion is published without that precision. Data type dateTime Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
total		0..1	integer	There are no (further) constraints on this element Element id ValueSet.expansion.total Short description Total number of codes in the expansion Definition The total number of concepts in the expansion. If the number of concept nodes in this resource is less than the stated number, then the server can return more using the offset parameter. Comments Paging only applies to flat expansions. Data type integer Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
offset		0..1	integer	There are no (further) constraints on this element Element id ValueSet.expansion.offset Short description Offset at which this resource starts Definition If paging is being used, the offset at which this resource starts. I.e. this resource is a partial view into the expansion. If paging is not being used, this element SHALL NOT be present. Comments Paging only applies to flat expansions. If a filter is applied, the count is the number of concepts that matched the filter, not the number of concepts in an unfiltered view of the expansion. Meaning when missing Paging is not being used Data type integer Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
parameter		0..*	BackboneElement	There are no (further) constraints on this element Element id ValueSet.expansion.parameter Short description Parameter that controlled the expansion process Definition A parameter that controlled the expansion process. These parameters may be used by users of expanded value sets to check whether the expansion is suitable for a particular purpose, or to pick the correct expansion. Comments The server decides which parameters to include here, but at a minimum, the list SHOULD include all of the parameters that affect the $expand operation. If the expansion will be persisted all of these parameters SHALL be included. If the codeSystem on the server has a specified version then this version SHALL be provided as a parameter in the expansion (note that not all code systems have a version). Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
id		0..1	string	There are no (further) constraints on this element Element id ValueSet.expansion.parameter.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.expansion.parameter.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.expansion.parameter.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
name		1..1	string	There are no (further) constraints on this element Element id ValueSet.expansion.parameter.name Short description Name as assigned by the client or server Definition Name of the input parameter to the $expand operation; may be a server-assigned name for additional default or other server-supplied parameters used to control the expansion process. Comments The names are assigned at the discretion of the server. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
value[x]		0..1		There are no (further) constraints on this element Element id ValueSet.expansion.parameter.value[x] Short description Value of the named parameter Definition The value of the parameter. Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
valueString			string	There are no (further) constraints on this element Data type string
valueBoolean			boolean	There are no (further) constraints on this element Data type boolean
valueInteger			integer	There are no (further) constraints on this element Data type integer
valueDecimal			decimal	There are no (further) constraints on this element Data type decimal
valueUri			uri	There are no (further) constraints on this element Data type uri
valueCode			code	There are no (further) constraints on this element Data type code
valueDateTime			dateTime	There are no (further) constraints on this element Data type dateTime
contains	I	0..*	BackboneElement	There are no (further) constraints on this element Element id ValueSet.expansion.contains Short description Codes in the value set Definition The codes that are contained in the value set expansion. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` vsd-6: SHALL have a code or a display `code.exists() or display.exists()` vsd-9: Must have a code if not abstract `code.exists() or abstract = true` vsd-10: Must have a system if a code is present `code.empty() or system.exists()` Mappings rim: n/a
id		0..1	string	There are no (further) constraints on this element Element id ValueSet.expansion.contains.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.expansion.contains.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id ValueSet.expansion.contains.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system		0..1	uri	There are no (further) constraints on this element Element id ValueSet.expansion.contains.system Short description System value for the code Definition An absolute URI which is the code system in which the code for this item in the expansion is defined. Comments see http://en.wikipedia.org/wiki/Uniform_resource_identifier Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
abstract		0..1	boolean	There are no (further) constraints on this element Element id ValueSet.expansion.contains.abstract Short description If user cannot select this entry Definition If true, this entry is included in the expansion for navigational purposes, and the user cannot select the code directly as a proper value. Comments This should not be understood to exclude its use for searching (e.g. by subsumption testing). The client should know whether it is appropriate for the user to select an abstract code or not. Meaning when missing If this is not populated, systems can assume that the concept it not abstract. This SHALL always be populated for abstract concepts Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
inactive		0..1	boolean	There are no (further) constraints on this element Element id ValueSet.expansion.contains.inactive Short description If concept is inactive in the code system Definition If the concept is inactive in the code system that defines it. Inactive codes are those that are no longer to be used, but are maintained by the code system for understanding legacy data. It might not be known or specified whether an concept is inactive (and it may depend on the context of use). Comments This should only have a value if the concept is inactive. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
version		0..1	string	There are no (further) constraints on this element Element id ValueSet.expansion.contains.version Short description Version in which this code/display is defined Definition The version of the code system from this code was taken. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Comments The exact value of the version string is specified by the system from which the code is derived. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
code	I	0..1	code	There are no (further) constraints on this element Element id ValueSet.expansion.contains.code Short description Code - if blank, this is not a selectable code Definition The code for this item in the expansion hierarchy. If this code is missing the entry in the hierarchy is a place holder (abstract) and does not represent a valid code in the value set. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
display	I	0..1	string	There are no (further) constraints on this element Element id ValueSet.expansion.contains.display Short description User display for the concept Definition The recommended display for this item in the expansion. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
designation		0..*	see (designation)	There are no (further) constraints on this element Element id ValueSet.expansion.contains.designation Short description Additional representations for this item Definition Additional representations for this item - other languages, aliases, specialized purposes, used for particular purposes, etc. These are relevant when the conditions of the expansion do not fix to a single correct representation. Comments The designations provided must be based on the value set and code system definitions.
contains		0..*	see (contains)	There are no (further) constraints on this element Element id ValueSet.expansion.contains.contains Short description Codes contained under this entry Definition Other codes and entries contained under this entry in the hierarchy. Comments If the expansion uses this element, there is no implication about the logical relationship between them, and the structure cannot be used for logical inferencing. The structure exists to provide navigational assistance for helping human users to locate codes in the expansion.

Details

Description of all elements can be found here, Element descriptions.

Mapping of FHIR element names to the National Medication List names can be found here, Element language mappings.

There is an extension, concept.definition, that some value sets use to provide defintions of each concept. Note that the definition is not visible in the 'overview' tab when looking at a value set. The definition is however visible in the Table, XML and JSON tabs.

Supported operations

HTTP methods

Operation	Supported	Comment
Search (GET, POST)	yes	See below for supported search options.
Insert (POST)	no
Update (PUT)	no
Delete (DEL)	no
Operation (GET, POST)	yes	See below for supported extended operations.

When interacting with this resource a set of HTTP-headers must be included in the request, see HTTP Header and Authorization.

Query operations

Supported queries

The following query alternatives are available for this resource.

../ValueSet
../ValueSet/[id]
../ValueSet/[id]/_history{/[vid]}
../ValueSet?code=[string]

Compartment searches

Compartments are not supported by this resource.

Include & reverse includes

Include and revinclude are not supported by this resource.

For generic information about how to search in FHIR look here.

Search parameters

The table below shows all supported search parameters.

Parameter	Description	Comment
ValueSet/[id]	A read based on the logical ID of a value set `../ValueSet/access-types`
_history	A vread to get all versions of a value set `../ValueSet/access-types/_history`
_history/[vid]	A vread to get a specific version of a value set `../ValueSet/access-types/_history/1.0.3`
code	Code to search for. All value sets containing the code will be returned. `..?code=43067004`

Other operations

$validate-code

Invocations

GET ../ValueSet/[id]/$validate-code?code=[string]{&version=[string]}{&date=[string]}{&display=[string]}

This operation does NOT change content.
This operation checks if a code exists in the current version of a specific value set unless a date or version is specified. It can also be used to check the display text.
This is a standard operation in FHIR, see $validate-code for more information.

Parameters (In)

Parameter	Description	Comment
code	Code to search for `..?code=43067004`
version	Version of the value set `..&version=1.0.3`
date	Version of the value set at a date `..&date=le2021-03-01`	le and eq are supported. No prefix is by default the same as eq.
display	A display text to compare with `..&display=h%E5rbotten`

Parameters (Out)

Parameter	Description	Comment
result	True if the concept details supplied are valid `true`
message	Information about the outcome `Koden "14175009" existerar.`
display	A valid display for the concept if the system wishes to display this to a user `reumatisk ledsjukdom`