This page is part of the FHIR Specification (v4.0.1: R4 - Mixed Normative and STU) in it's permanent home (it will always be available at this URL). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3 R2
Vocabulary Work Group | Maturity Level: N | Normative (from v4.0.0) | Security Category: Anonymous | Compartments: Not linked to any defined compartments |
Detailed Descriptions for the elements in the ValueSet resource.
ValueSet | |||||||||||||||||
Element Id | ValueSet | ||||||||||||||||
Definition | A ValueSet resource instance specifies a set of codes drawn from one or more code systems, intended for use in a particular context. Value sets link between CodeSystem definitions and their use in coded elements. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Type | DomainResource | ||||||||||||||||
Invariants |
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ValueSet.url | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | uri | ||||||||||||||||
Requirements | Allows the value set to be referenced by a single globally unique identifier. | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.identifier | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Note | This is a business identifier, not a resource identifier (see discussion) | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Type | Identifier | ||||||||||||||||
Requirements | Allows externally provided and/or usable business identifiers to be easily associated with the module. | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.version | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Note | This is a business versionId, not a resource version id (see discussion) | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | string | ||||||||||||||||
Summary | true | ||||||||||||||||
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]. | ||||||||||||||||
ValueSet.name | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | string | ||||||||||||||||
Requirements | Support human navigation and code generation. | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
Invariants |
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ValueSet.title | |||||||||||||||||
Element Id | ValueSet.title | ||||||||||||||||
Definition | A short, descriptive, user-friendly title for the value set. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | string | ||||||||||||||||
Summary | true | ||||||||||||||||
Comments | This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc. | ||||||||||||||||
ValueSet.status | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 1..1 | ||||||||||||||||
Terminology Binding | PublicationStatus (Required) | ||||||||||||||||
Type | code | ||||||||||||||||
Is Modifier | true (Reason: This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration) | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.experimental | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | boolean | ||||||||||||||||
Requirements | Enables experimental content to be developed following the same lifecycle that would be used for a production-level value set. | ||||||||||||||||
Summary | true | ||||||||||||||||
Comments | Allows filtering of value sets that are appropriate for use versus not. | ||||||||||||||||
ValueSet.date | |||||||||||||||||
Element Id | ValueSet.date | ||||||||||||||||
Definition | The date (and optionally time) when the value set was created or revised (e.g. the 'content logical definition'). | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | dateTime | ||||||||||||||||
Alternate Names | Revision Date | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.publisher | |||||||||||||||||
Element Id | ValueSet.publisher | ||||||||||||||||
Definition | The name of the organization or individual that published the value set. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | string | ||||||||||||||||
Requirements | Helps establish the "authority/credibility" of the value set. May also allow for contact. | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.contact | |||||||||||||||||
Element Id | ValueSet.contact | ||||||||||||||||
Definition | Contact details to assist a user in finding and communicating with the publisher. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Type | ContactDetail | ||||||||||||||||
Summary | true | ||||||||||||||||
Comments | May be a web site, an email address, a telephone number, etc. | ||||||||||||||||
ValueSet.description | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | markdown | ||||||||||||||||
Alternate Names | Scope; 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. | ||||||||||||||||
ValueSet.useContext | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Type | UsageContext | ||||||||||||||||
Requirements | Assist in searching for appropriate content. | ||||||||||||||||
Summary | true | ||||||||||||||||
Comments | When multiple useContexts are specified, there is no expectation that all or any of the contexts apply. | ||||||||||||||||
ValueSet.jurisdiction | |||||||||||||||||
Element Id | ValueSet.jurisdiction | ||||||||||||||||
Definition | A legal or geographic region in which the value set is intended to be used. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Terminology Binding | Jurisdiction (Extensible) | ||||||||||||||||
Type | CodeableConcept | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.immutable | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | boolean | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.purpose | |||||||||||||||||
Element Id | ValueSet.purpose | ||||||||||||||||
Definition | Explanation of why this value set is needed and why it has been designed as it has. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | markdown | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.copyright | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | markdown | ||||||||||||||||
Requirements | Consumers must be able to determine any legal restrictions on the use of the value set and/or its content. | ||||||||||||||||
Alternate Names | License; 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. | ||||||||||||||||
ValueSet.compose | |||||||||||||||||
Element Id | 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). | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Alternate Names | Content Logical Definition; CLD | ||||||||||||||||
ValueSet.compose.lockedDate | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | date | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.compose.inactive | |||||||||||||||||
Element Id | 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). | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | boolean | ||||||||||||||||
Summary | true | ||||||||||||||||
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). | ||||||||||||||||
ValueSet.compose.include | |||||||||||||||||
Element Id | ValueSet.compose.include | ||||||||||||||||
Definition | Include one or more codes from a code system or other value set(s). | ||||||||||||||||
Cardinality | 1..* | ||||||||||||||||
Summary | true | ||||||||||||||||
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'. | ||||||||||||||||
Invariants |
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ValueSet.compose.include.system | |||||||||||||||||
Element Id | ValueSet.compose.include.system | ||||||||||||||||
Definition | An absolute URI which is the code system from which the selected codes come from. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | uri | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
Invariants |
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ValueSet.compose.include.version | |||||||||||||||||
Element Id | ValueSet.compose.include.version | ||||||||||||||||
Definition | The version of the code system that the codes are selected from, or the special version '*' for all versions. | ||||||||||||||||
Note | This is a business versionId, not a resource version id (see discussion) | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | string | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.compose.include.concept | |||||||||||||||||
Element Id | ValueSet.compose.include.concept | ||||||||||||||||
Definition | Specifies a concept to be included or excluded. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
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. | ||||||||||||||||
Invariants |
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ValueSet.compose.include.concept.code | |||||||||||||||||
Element Id | ValueSet.compose.include.concept.code | ||||||||||||||||
Definition | Specifies a code for the concept to be included or excluded. | ||||||||||||||||
Cardinality | 1..1 | ||||||||||||||||
Type | code | ||||||||||||||||
Comments | Expressions are allowed if defined by the underlying code system. | ||||||||||||||||
ValueSet.compose.include.concept.display | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | string | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.compose.include.concept.designation | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Comments | Concepts have both a | ||||||||||||||||
ValueSet.compose.include.concept.designation.language | |||||||||||||||||
Element Id | ValueSet.compose.include.concept.designation.language | ||||||||||||||||
Definition | The language this designation is defined for. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Terminology Binding | Common Languages (Preferred but limited to All Languages) | ||||||||||||||||
Type | code | ||||||||||||||||
Comments | In the absence of a language, the resource language applies. | ||||||||||||||||
ValueSet.compose.include.concept.designation.use | |||||||||||||||||
Element Id | ValueSet.compose.include.concept.designation.use | ||||||||||||||||
Definition | A code that represents types of uses of designations. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Terminology Binding | Designation Use (Extensible) | ||||||||||||||||
Type | Coding | ||||||||||||||||
Comments | If no use is provided, the designation can be assumed to be suitable for general display to a human user. | ||||||||||||||||
ValueSet.compose.include.concept.designation.value | |||||||||||||||||
Element Id | ValueSet.compose.include.concept.designation.value | ||||||||||||||||
Definition | The text value for this designation. | ||||||||||||||||
Cardinality | 1..1 | ||||||||||||||||
Type | string | ||||||||||||||||
ValueSet.compose.include.filter | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Summary | true | ||||||||||||||||
Comments | Selecting codes by specifying filters based on properties is only possible where the underlying code system defines appropriate properties. Note that in some cases, the underlying code system defines the logical concepts but not the literal codes for the concepts. In such cases, the literal definitions may be provided by a third party. | ||||||||||||||||
Invariants |
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ValueSet.compose.include.filter.property | |||||||||||||||||
Element Id | ValueSet.compose.include.filter.property | ||||||||||||||||
Definition | A code that identifies a property or a filter defined in the code system. | ||||||||||||||||
Cardinality | 1..1 | ||||||||||||||||
Type | code | ||||||||||||||||
Summary | true | ||||||||||||||||
ValueSet.compose.include.filter.op | |||||||||||||||||
Element Id | ValueSet.compose.include.filter.op | ||||||||||||||||
Definition | The kind of operation to perform as a part of the filter criteria. | ||||||||||||||||
Cardinality | 1..1 | ||||||||||||||||
Terminology Binding | FilterOperator (Required) | ||||||||||||||||
Type | code | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.compose.include.filter.value | |||||||||||||||||
Element Id | 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'. | ||||||||||||||||
Cardinality | 1..1 | ||||||||||||||||
Type | string | ||||||||||||||||
Summary | true | ||||||||||||||||
Comments | Use regex matching with care - full regex matching on every SNOMED CT term is prohibitive, for example. | ||||||||||||||||
ValueSet.compose.include.valueSet | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Type | canonical(ValueSet) | ||||||||||||||||
Summary | true | ||||||||||||||||
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. | ||||||||||||||||
Invariants |
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ValueSet.compose.exclude | |||||||||||||||||
Element Id | ValueSet.compose.exclude | ||||||||||||||||
Definition | Exclude one or more codes from the value set based on code system filters and/or other value sets. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Type | See ValueSet.compose.include | ||||||||||||||||
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. | ||||||||||||||||
Invariants |
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ValueSet.expansion | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.expansion.identifier | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Note | This is a business identifier, not a resource identifier (see discussion) | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | uri | ||||||||||||||||
Comments | Typically, this uri is a UUID (e.g. urn:uuid:8230ff20-c97a-4167-a59d-dc2cb9df16dd). | ||||||||||||||||
ValueSet.expansion.timestamp | |||||||||||||||||
Element Id | ValueSet.expansion.timestamp | ||||||||||||||||
Definition | The time at which the expansion was produced by the expanding system. | ||||||||||||||||
Cardinality | 1..1 | ||||||||||||||||
Type | dateTime | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.expansion.total | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | integer | ||||||||||||||||
Comments | Paging only applies to flat expansions. | ||||||||||||||||
ValueSet.expansion.offset | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | integer | ||||||||||||||||
Meaning if Missing | Paging is not being used | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.expansion.parameter | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
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). | ||||||||||||||||
ValueSet.expansion.parameter.name | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 1..1 | ||||||||||||||||
Type | string | ||||||||||||||||
Comments | The names are assigned at the discretion of the server. | ||||||||||||||||
ValueSet.expansion.parameter.value[x] | |||||||||||||||||
Element Id | ValueSet.expansion.parameter.value[x] | ||||||||||||||||
Definition | The value of the parameter. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | string|boolean|integer|decimal|uri|code|dateTime | ||||||||||||||||
[x] Note | See Choice of Data Types for further information about how to use [x] | ||||||||||||||||
ValueSet.expansion.contains | |||||||||||||||||
Element Id | ValueSet.expansion.contains | ||||||||||||||||
Definition | The codes that are contained in the value set expansion. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Invariants |
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ValueSet.expansion.contains.system | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | uri | ||||||||||||||||
ValueSet.expansion.contains.abstract | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | boolean | ||||||||||||||||
Meaning if Missing | If this is not populated, systems can assume that the concept it not abstract. This SHALL always be populated for abstract concepts | ||||||||||||||||
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. | ||||||||||||||||
ValueSet.expansion.contains.inactive | |||||||||||||||||
Element Id | 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). | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | boolean | ||||||||||||||||
Comments | This should only have a value if the concept is inactive. | ||||||||||||||||
ValueSet.expansion.contains.version | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Note | This is a business versionId, not a resource version id (see discussion) | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | string | ||||||||||||||||
Comments | The exact value of the version string is specified by the system from which the code is derived. | ||||||||||||||||
ValueSet.expansion.contains.code | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | code | ||||||||||||||||
Invariants |
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ValueSet.expansion.contains.display | |||||||||||||||||
Element Id | ValueSet.expansion.contains.display | ||||||||||||||||
Definition | The recommended display for this item in the expansion. | ||||||||||||||||
Cardinality | 0..1 | ||||||||||||||||
Type | string | ||||||||||||||||
Invariants |
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ValueSet.expansion.contains.designation | |||||||||||||||||
Element Id | 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. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Type | See ValueSet.compose.include.concept.designation | ||||||||||||||||
Comments | The designations provided must be based on the value set and code system definitions. | ||||||||||||||||
ValueSet.expansion.contains.contains | |||||||||||||||||
Element Id | ValueSet.expansion.contains.contains | ||||||||||||||||
Definition | Other codes and entries contained under this entry in the hierarchy. | ||||||||||||||||
Cardinality | 0..* | ||||||||||||||||
Type | See ValueSet.expansion.contains | ||||||||||||||||
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. |