Structured Data Capture
2.8.0 - CI Build

Structured Data Capture, published by HL7 International - FHIR Infrastructure Work Group. This is not an authorized publication; it is the continuous build for version 2.8.0). This version is based on the current content of https://github.com/HL7/sdc/ and changes regularly. See the Directory of published versions

Resource Profile: SDCValueSet - Detailed Descriptions

Definitions for the sdc-valueset resource profile.

1. ValueSet
Definition

Sets expectations for SDC-conformant systems around value set support for representing permitted question answers.

Control0..*
InvariantsDefined on this element
dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (: contained.contained.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-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-5: If a resource is contained in another resource, it SHALL NOT have a security label (: contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (: text.`div`.exists())
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}'))
2. ValueSet.id
Definition

The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

Control0..1
Typestring
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.

3. ValueSet.meta
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.

Control0..1
TypeMeta
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
4. ValueSet.implicitRules
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.

Control0..1
Typeuri
Is Modifiertrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
5. ValueSet.language
Definition

The base language in which the resource is written.

Control0..1
BindingThe codes SHOULD be taken from CommonLanguages
Max Binding: AllLanguages A human language.

Typecode
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).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
6. ValueSet.text
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.

Control0..1
TypeNarrative
Alternate Namesnarrative, html, xhtml, display
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
7. ValueSet.contained
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.

Control0..*
TypeResource
Alternate Namesinline resources, anonymous resources, contained resources
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.

8. ValueSet.extension
Definition

An Extension

Control0..*
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
9. ValueSet.extension:styleSensitive
SliceNamestyleSensitive
Definition

Indicates that the style extensions (style, markdown and xhtml) in this resource instance are essential to the interpretation of the instance and that systems that are not capable of rendering using those extensions should not be used to render the resource.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(styleSensitive) (Extension Type: boolean)
Must Supporttrue
Comments

If set to true, all systems that claim to support this extension and that render elements from the resource SHALL either render the content as required by the style extensions ([style], [xhtml] and [markdown]) or shall indicate to the user that the resource (or specific elements in the resource) cannot be appropriately rendered by the system.

InvariantsDefined on this element
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())
10. ValueSet.modifierExtension
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).

Control0..*
TypeExtension
Is Modifiertrue
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.

Alternate Namesextensions, user content
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.

InvariantsDefined on this element
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())
11. ValueSet.url
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.

Control0..1
Typeuri
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
12. ValueSet.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.

NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
13. ValueSet.version
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.

NoteThis is a business versionId, not a resource version id (see discussion)
Control0..1
Typestring
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].

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
14. ValueSet.name
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.

Control0..1 This element is affected by the following invariants: inv-0
Typestring
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
15. ValueSet.title
Definition

A short, descriptive, user-friendly title for the value set.

Control0..1
Typestring
Comments

This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
16. ValueSet.status
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.

Control1..1
BindingThe codes SHALL be taken from PublicationStatus The lifecycle status of an artifact.

Typecode
Is Modifiertrue
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
17. ValueSet.experimental
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.

Control0..1
Typeboolean
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
18. ValueSet.date
Definition

The date (and optionally time) when the value set was created or revised (e.g. the 'content logical definition').

Control0..1
TypedateTime
Must Supporttrue
Alternate NamesRevision Date
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
19. ValueSet.publisher
Definition

The name of the organization or individual that published the value set.

Control0..1
Typestring
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
20. ValueSet.contact
Definition

Contact details to assist a user in finding and communicating with the publisher.

Control0..*
TypeContactDetail
Comments

May be a web site, an email address, a telephone number, etc.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
21. ValueSet.description
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.

Control0..1
Typemarkdown
Must Supporttrue
Alternate NamesScope, Purpose
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
22. ValueSet.useContext
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.

Control0..*
TypeUsageContext
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
23. ValueSet.jurisdiction
Definition

A legal or geographic region in which the value set is intended to be used.

Control0..*
BindingThe codes SHALL be taken from Jurisdiction ValueSet; other codes may be used where these codes are not suitable Countries and regions within which this artifact is targeted for use.

TypeCodeableConcept
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
24. ValueSet.immutable
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.

Control1..1
Typeboolean
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
25. ValueSet.purpose
Definition

Explanation of why this value set is needed and why it has been designed as it has.

Control0..1
Typemarkdown
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
26. ValueSet.copyright
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.

Control0..1
Typemarkdown
Requirements

Consumers must be able to determine any legal restrictions on the use of the value set and/or its content.

Alternate NamesLicense, Restrictions
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
27. ValueSet.compose
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).

Control0..1
TypeBackboneElement
Must Supporttrue
Alternate NamesContent Logical Definition, CLD
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
28. ValueSet.compose.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
29. ValueSet.compose.extension
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.

Control0..*
TypeExtension
Alternate Namesextensions, user content
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.

InvariantsDefined on this element
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())
30. ValueSet.compose.modifierExtension
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).

Control0..*
TypeExtension
Is Modifiertrue
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.

Alternate Namesextensions, user content, modifiers
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.

InvariantsDefined on this element
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())
31. ValueSet.compose.lockedDate
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.

Control0..1
Typedate
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
32. ValueSet.compose.inactive
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).

Control0..1
Typeboolean
Must Supporttrue
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).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
33. ValueSet.compose.include
Definition

Include one or more codes from a code system or other value set(s).

Control1..*
TypeBackboneElement
Must Supporttrue
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'.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
vsd-1: A value set include/exclude SHALL have a value set or a system (: valueSet.exists() or system.exists())
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())
34. ValueSet.compose.include.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
35. ValueSet.compose.include.extension
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.

Control0..*
TypeExtension
Alternate Namesextensions, user content
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.

InvariantsDefined on this element
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())
36. ValueSet.compose.include.modifierExtension
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).

Control0..*
TypeExtension
Is Modifiertrue
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.

Alternate Namesextensions, user content, modifiers
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.

InvariantsDefined on this element
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())
37. ValueSet.compose.include.system
Definition

An absolute URI which is the code system from which the selected codes come from.

Control0..1 This element is affected by the following invariants: vsd-1, vsd-2
Typeuri
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
38. ValueSet.compose.include.version
Definition

The version of the code system that the codes are selected from, or the special version '*' for all versions.

NoteThis is a business versionId, not a resource version id (see discussion)
Control0..1
Typestring
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
39. ValueSet.compose.include.concept
Definition

Specifies a concept to be included or excluded.

Control0..* This element is affected by the following invariants: vsd-3
TypeBackboneElement
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
40. ValueSet.compose.include.concept.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
41. ValueSet.compose.include.concept.extension
Definition

An Extension

Control0..*
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.compose.include.concept.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
42. ValueSet.compose.include.concept.extension:conceptLabel
SliceNameconceptLabel
Definition

The label to list in front of a code when presenting a list of possible values in a questionnaire-like fashion.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(label) (Extension Type: string)
Must Supporttrue
InvariantsDefined on this element
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())
43. ValueSet.compose.include.concept.extension:conceptLabel.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
44. ValueSet.compose.include.concept.extension:conceptLabel.extension
Definition

An Extension

Control0..0
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.compose.include.concept.extension.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
45. ValueSet.compose.include.concept.extension:conceptLabel.url
Definition

Source of the definition for the extension code - a logical name or a URL.

Control1..1
Typeuri
Comments

The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

Fixed Valuehttp://hl7.org/fhir/StructureDefinition/valueset-label
46. ValueSet.compose.include.concept.extension:conceptLabel.value[x]
Definition

Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

Control1..1
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on ValueSet.compose.include.concept.extension.value[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
47. ValueSet.compose.include.concept.extension:conceptLabel.value[x]:valueString
SliceNamevalueString
Definition

Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

Control1..1
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
48. ValueSet.compose.include.concept.extension:conceptLabel.value[x]:valueString.id
Definition

unique id for the element within a resource (for internal references)

Control0..1
Typestring
49. ValueSet.compose.include.concept.extension:conceptLabel.value[x]:valueString.extension
Definition

An Extension

Control0..*
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.compose.include.concept.extension.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
50. ValueSet.compose.include.concept.extension:conceptLabel.value[x]:valueString.extension:code-renderingStyle
SliceNamecode-renderingStyle
Definition

Identifies how the specified element should be rendered when displayed.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(style) (Extension Type: string)
Comments

This extension would be equivalent to setting the HTML "style" attribute on the root element for the element containing the extension.

InvariantsDefined on this element
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())
51. ValueSet.compose.include.concept.extension:conceptLabel.value[x]:valueString.extension:code-xhtml
SliceNamecode-xhtml
Definition

This is an equivalent of the string on which the extension is sent, but includes additional XHTML markup, such as bold, italics, styles, tables, etc. Existing restrictions on XHTML content apply. Note that using markdown allows for greater flexibility of display.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(xhtml) (Extension Type: string)
InvariantsDefined on this element
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())
52. ValueSet.compose.include.concept.extension:conceptLabel.value[x]:valueString.value
Definition

The actual value

Control0..1
Typestring
Max Length1048576
53. ValueSet.compose.include.concept.extension:conceptConceptOrder
SliceNameconceptConceptOrder
Definition

Identifies the relative order in which concepts within the value set should be presented to a user.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(conceptOrder) (Extension Type: integer)
Must Supporttrue
Comments

The presence of a sort order implies that sort order is important.

InvariantsDefined on this element
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())
54. ValueSet.compose.include.concept.modifierExtension
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).

Control0..*
TypeExtension
Is Modifiertrue
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.

Alternate Namesextensions, user content, modifiers
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.

InvariantsDefined on this element
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())
55. ValueSet.compose.include.concept.code
Definition

Specifies a code for the concept to be included or excluded.

Control1..1
Typecode
Must Supporttrue
Comments

Expressions are allowed if defined by the underlying code system.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
56. ValueSet.compose.include.concept.display
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.

Control0..1
Typestring
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
57. ValueSet.compose.include.concept.display.id
Definition

unique id for the element within a resource (for internal references)

Control0..1
Typestring
58. ValueSet.compose.include.concept.display.extension
Definition

An Extension

Control0..*
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.compose.include.concept.display.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
59. ValueSet.compose.include.concept.display.extension:codeDisplay-renderingStyle
SliceNamecodeDisplay-renderingStyle
Definition

Identifies how the specified element should be rendered when displayed.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(style) (Extension Type: string)
Comments

This extension would be equivalent to setting the HTML "style" attribute on the root element for the element containing the extension.

InvariantsDefined on this element
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())
60. ValueSet.compose.include.concept.display.extension:codeDisplay-xhtml
SliceNamecodeDisplay-xhtml
Definition

This is an equivalent of the string on which the extension is sent, but includes additional XHTML markup, such as bold, italics, styles, tables, etc. Existing restrictions on XHTML content apply. Note that using markdown allows for greater flexibility of display.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(xhtml) (Extension Type: string)
InvariantsDefined on this element
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())
61. ValueSet.compose.include.concept.display.value
Definition

The actual value

Control0..1
Typestring
Max Length1048576
62. ValueSet.compose.include.concept.designation
Definition

Additional representations for this concept when used in this value set - other languages, aliases, specialized purposes, used for particular purposes, etc.

Control0..*
TypeBackboneElement
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
63. ValueSet.compose.include.concept.designation.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
64. ValueSet.compose.include.concept.designation.extension
Definition

An Extension

Control0..*
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.compose.include.concept.designation.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
65. ValueSet.compose.include.concept.designation.extension:designation-renderingStyle
SliceNamedesignation-renderingStyle
Definition

Identifies how the specified element should be rendered when displayed.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(style) (Extension Type: string)
Comments

This extension would be equivalent to setting the HTML "style" attribute on the root element for the element containing the extension.

InvariantsDefined on this element
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())
66. ValueSet.compose.include.concept.designation.extension:designation-xhtml
SliceNamedesignation-xhtml
Definition

This is an equivalent of the string on which the extension is sent, but includes additional XHTML markup, such as bold, italics, styles, tables, etc. Existing restrictions on XHTML content apply. Note that using markdown allows for greater flexibility of display.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(xhtml) (Extension Type: string)
InvariantsDefined on this element
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())
67. ValueSet.compose.include.concept.designation.modifierExtension
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).

Control0..*
TypeExtension
Is Modifiertrue
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.

Alternate Namesextensions, user content, modifiers
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.

InvariantsDefined on this element
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())
68. ValueSet.compose.include.concept.designation.language
Definition

The language this designation is defined for.

Control0..1
BindingThe codes SHOULD be taken from CommonLanguages
Max Binding: AllLanguages A human language.

Typecode
Comments

In the absence of a language, the resource language applies.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
69. ValueSet.compose.include.concept.designation.use
Definition

A code that represents types of uses of designations.

Control0..1
BindingThe codes SHALL be taken from DesignationUse; other codes may be used where these codes are not suitable Details of how a designation would be used.

TypeCoding
Comments

If no use is provided, the designation can be assumed to be suitable for general display to a human user.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
70. ValueSet.compose.include.concept.designation.value
Definition

The text value for this designation.

Control1..1
Typestring
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
71. ValueSet.compose.include.filter
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.

Control0..* This element is affected by the following invariants: vsd-3
TypeBackboneElement
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
72. ValueSet.compose.include.filter.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
73. ValueSet.compose.include.filter.extension
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.

Control0..*
TypeExtension
Alternate Namesextensions, user content
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.

InvariantsDefined on this element
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())
74. ValueSet.compose.include.filter.modifierExtension
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).

Control0..*
TypeExtension
Is Modifiertrue
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.

Alternate Namesextensions, user content, modifiers
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.

InvariantsDefined on this element
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())
75. ValueSet.compose.include.filter.property
Definition

A code that identifies a property or a filter defined in the code system.

Control1..1
Typecode
Must Supporttrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
76. ValueSet.compose.include.filter.op
Definition

The kind of operation to perform as a part of the filter criteria.

Control1..1
BindingThe codes SHALL be taken from FilterOperator The kind of operation to perform as a part of a property based filter.

Typecode
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
77. ValueSet.compose.include.filter.value
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'.

Control1..1
Typestring
Must Supporttrue
Comments

Use regex matching with care - full regex matching on every SNOMED CT term is prohibitive, for example.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
78. ValueSet.compose.include.valueSet
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.

Control0..* This element is affected by the following invariants: vsd-1
Typecanonical(ValueSet)
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
79. ValueSet.compose.exclude
Definition

Exclude one or more codes from the value set based on code system filters and/or other value sets.

Control0..* This element is affected by the following invariants: vsd-2
TypeSee ttp://hl7.org/fhir/StructureDefinition/ValueSet#ValueSet.compose.include
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
80. ValueSet.expansion
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.

Control0..1
TypeBackboneElement
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
81. ValueSet.expansion.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
82. ValueSet.expansion.extension
Definition

An Extension

Control0..*
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.expansion.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
83. ValueSet.expansion.extension:expansionSource
SliceNameexpansionSource
Definition

The logical URL of the ValueSet definition that was used to generate this expansion.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(expansionSource) (Extension Type: uri)
InvariantsDefined on this element
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())
84. ValueSet.expansion.modifierExtension
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).

Control0..*
TypeExtension
Is Modifiertrue
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.

Alternate Namesextensions, user content, modifiers
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.

InvariantsDefined on this element
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())
85. ValueSet.expansion.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.

NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..1
Typeuri
Must Supporttrue
Comments

Typically, this uri is a UUID (e.g. urn:uuid:8230ff20-c97a-4167-a59d-dc2cb9df16dd).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
86. ValueSet.expansion.timestamp
Definition

The time at which the expansion was produced by the expanding system.

Control1..1
TypedateTime
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
87. ValueSet.expansion.total
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.

Control0..1
Typeinteger
Comments

Paging only applies to flat expansions.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
88. ValueSet.expansion.offset
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.

Control0..1
Typeinteger
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 if MissingPaging is not being used
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
89. ValueSet.expansion.parameter
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.

Control0..*
TypeBackboneElement
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).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
90. ValueSet.expansion.parameter.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
91. ValueSet.expansion.parameter.extension
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.

Control0..*
TypeExtension
Alternate Namesextensions, user content
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.

InvariantsDefined on this element
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())
92. ValueSet.expansion.parameter.modifierExtension
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).

Control0..*
TypeExtension
Is Modifiertrue
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.

Alternate Namesextensions, user content, modifiers
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.

InvariantsDefined on this element
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())
93. ValueSet.expansion.parameter.name
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.

Control1..1
Typestring
Comments

The names are assigned at the discretion of the server.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
94. ValueSet.expansion.parameter.value[x]
Definition

The value of the parameter.

Control0..1
TypeChoice of: string, boolean, integer, decimal, uri, code, dateTime
[x] NoteSee Choice of Data Types for further information about how to use [x]
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
95. ValueSet.expansion.contains
Definition

The codes that are contained in the value set expansion.

Control0..*
TypeBackboneElement
Must Supporttrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
vsd-10: Must have a system if a code is present (: code.empty() or system.exists())
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)
96. ValueSet.expansion.contains.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
97. ValueSet.expansion.contains.extension
Definition

An Extension

Control0..*
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.expansion.contains.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
98. ValueSet.expansion.contains.extension:expansionLabel
SliceNameexpansionLabel
Definition

The label to list in front of a code when presenting a list of possible values in a questionnaire-like fashion.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(label) (Extension Type: string)
Must Supporttrue
InvariantsDefined on this element
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())
99. ValueSet.expansion.contains.extension:expansionLabel.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
100. ValueSet.expansion.contains.extension:expansionLabel.extension
Definition

An Extension

Control0..0
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.expansion.contains.extension.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
101. ValueSet.expansion.contains.extension:expansionLabel.url
Definition

Source of the definition for the extension code - a logical name or a URL.

Control1..1
Typeuri
Comments

The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

Fixed Valuehttp://hl7.org/fhir/StructureDefinition/valueset-label
102. ValueSet.expansion.contains.extension:expansionLabel.value[x]
Definition

Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

Control1..1
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on ValueSet.expansion.contains.extension.value[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
103. ValueSet.expansion.contains.extension:expansionLabel.value[x]:valueString
SliceNamevalueString
Definition

Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

Control1..1
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
104. ValueSet.expansion.contains.extension:expansionLabel.value[x]:valueString.id
Definition

unique id for the element within a resource (for internal references)

Control0..1
Typestring
105. ValueSet.expansion.contains.extension:expansionLabel.value[x]:valueString.extension
Definition

An Extension

Control0..*
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.expansion.contains.extension.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
106. ValueSet.expansion.contains.extension:expansionLabel.value[x]:valueString.extension:expansion-renderingStyle
SliceNameexpansion-renderingStyle
Definition

Identifies how the specified element should be rendered when displayed.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(style) (Extension Type: string)
Comments

This extension would be equivalent to setting the HTML "style" attribute on the root element for the element containing the extension.

InvariantsDefined on this element
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())
107. ValueSet.expansion.contains.extension:expansionLabel.value[x]:valueString.extension:expansion-xhtml
SliceNameexpansion-xhtml
Definition

This is an equivalent of the string on which the extension is sent, but includes additional XHTML markup, such as bold, italics, styles, tables, etc. Existing restrictions on XHTML content apply. Note that using markdown allows for greater flexibility of display.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(xhtml) (Extension Type: string)
InvariantsDefined on this element
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())
108. ValueSet.expansion.contains.extension:expansionLabel.value[x]:valueString.value
Definition

The actual value

Control0..1
Typestring
Max Length1048576
109. ValueSet.expansion.contains.extension:conceptConceptOrder
SliceNameconceptConceptOrder
Definition

Identifies the relative order in which concepts within the value set should be presented to a user.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(conceptOrder) (Extension Type: integer)
Must Supporttrue
Comments

The presence of a sort order implies that sort order is important.

InvariantsDefined on this element
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())
110. ValueSet.expansion.contains.modifierExtension
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).

Control0..*
TypeExtension
Is Modifiertrue
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.

Alternate Namesextensions, user content, modifiers
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.

InvariantsDefined on this element
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())
111. ValueSet.expansion.contains.system
Definition

An absolute URI which is the code system in which the code for this item in the expansion is defined.

Control0..1
Typeuri
Must Supporttrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
112. ValueSet.expansion.contains.abstract
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.

Control0..1
Typeboolean
Must Supporttrue
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 if MissingIf this is not populated, systems can assume that the concept it not abstract. This SHALL always be populated for abstract concepts
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
113. ValueSet.expansion.contains.inactive
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).

Control0..1
Typeboolean
Comments

This should only have a value if the concept is inactive.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
114. ValueSet.expansion.contains.version
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.

NoteThis is a business versionId, not a resource version id (see discussion)
Control0..1
Typestring
Must Supporttrue
Comments

The exact value of the version string is specified by the system from which the code is derived.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
115. ValueSet.expansion.contains.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.

Control0..1 This element is affected by the following invariants: vsd-6
Typecode
Must Supporttrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
116. ValueSet.expansion.contains.display
Definition

The recommended display for this item in the expansion.

Control0..1 This element is affected by the following invariants: vsd-6
Typestring
Must Supporttrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
117. ValueSet.expansion.contains.display.id
Definition

unique id for the element within a resource (for internal references)

Control0..1
Typestring
118. ValueSet.expansion.contains.display.extension
Definition

An Extension

Control0..*
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.expansion.contains.display.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
119. ValueSet.expansion.contains.display.extension:expansionDisplay-renderingStyle
SliceNameexpansionDisplay-renderingStyle
Definition

Identifies how the specified element should be rendered when displayed.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(style) (Extension Type: string)
Comments

This extension would be equivalent to setting the HTML "style" attribute on the root element for the element containing the extension.

InvariantsDefined on this element
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())
120. ValueSet.expansion.contains.display.extension:expansionDisplay-xhtml
SliceNameexpansionDisplay-xhtml
Definition

This is an equivalent of the string on which the extension is sent, but includes additional XHTML markup, such as bold, italics, styles, tables, etc. Existing restrictions on XHTML content apply. Note that using markdown allows for greater flexibility of display.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(xhtml) (Extension Type: string)
InvariantsDefined on this element
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())
121. ValueSet.expansion.contains.display.value
Definition

The actual value

Control0..1
Typestring
Max Length1048576
122. ValueSet.expansion.contains.designation
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.

Control0..*
TypeBackboneElement
Comments

The designations provided must be based on the value set and code system definitions.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
123. ValueSet.expansion.contains.designation.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
124. ValueSet.expansion.contains.designation.extension
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.

Control0..*
TypeExtension
Alternate Namesextensions, user content
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.

InvariantsDefined on this element
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())
125. ValueSet.expansion.contains.designation.modifierExtension
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).

Control0..*
TypeExtension
Is Modifiertrue
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.

Alternate Namesextensions, user content, modifiers
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.

InvariantsDefined on this element
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())
126. ValueSet.expansion.contains.designation.language
Definition

The language this designation is defined for.

Control0..1
BindingThe codes SHOULD be taken from CommonLanguages
Max Binding: AllLanguages A human language.

Typecode
Comments

In the absence of a language, the resource language applies.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
127. ValueSet.expansion.contains.designation.use
Definition

A code that represents types of uses of designations.

Control0..1
BindingThe codes SHALL be taken from DesignationUse; other codes may be used where these codes are not suitable Details of how a designation would be used.

TypeCoding
Comments

If no use is provided, the designation can be assumed to be suitable for general display to a human user.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
128. ValueSet.expansion.contains.designation.value
Definition

The text value for this designation.

Control1..1
Typestring
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
129. ValueSet.expansion.contains.designation.value.id
Definition

unique id for the element within a resource (for internal references)

Control0..1
Typestring
130. ValueSet.expansion.contains.designation.value.extension
Definition

An Extension

Control0..*
TypeExtension
InvariantsDefined on this element
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())
SlicingThis element introduces a set of slices on ValueSet.expansion.contains.designation.value.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
131. ValueSet.expansion.contains.designation.value.extension:expansionDesignation-renderingStyle
SliceNameexpansionDesignation-renderingStyle
Definition

Identifies how the specified element should be rendered when displayed.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(style) (Extension Type: string)
Comments

This extension would be equivalent to setting the HTML "style" attribute on the root element for the element containing the extension.

InvariantsDefined on this element
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())
132. ValueSet.expansion.contains.designation.value.extension:expansionDesignation-xhtml
SliceNameexpansionDesignation-xhtml
Definition

This is an equivalent of the string on which the extension is sent, but includes additional XHTML markup, such as bold, italics, styles, tables, etc. Existing restrictions on XHTML content apply. Note that using markdown allows for greater flexibility of display.

Control0..1 This element is affected by the following invariants: ele-1
TypeExtension(xhtml) (Extension Type: string)
InvariantsDefined on this element
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())
133. ValueSet.expansion.contains.designation.value.value
Definition

The actual value

Control0..1
Typestring
Max Length1048576
134. ValueSet.expansion.contains.contains
Definition

Other codes and entries contained under this entry in the hierarchy.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/ValueSet#ValueSet.expansion.contains
Must Supporttrue
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.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))