FQL is a query language that allows you to retrieve, filter and project data from any data source containing FHIR Resources. It brings the power of three existing languages together: SQL, JSON and FhirPath. It allows you to create tables and is useful for gaining insight and perform quality control.
-
Default
What is FQL?
-
FQL Query resources
FQL Playground
Try Firely Query Language in our playground by using this scope as data source.
- FQL Documentation
-
FQL Language
Syntax specification
To learn more about FQL syntax choose this menu item.
-
YamlGen Generate resources
YamlGen Playground
Try YamlGen in our playground by using this scope as data source.
-
YamlGen Language
YamlGen Syntax specification
To learn more about YamlGen syntax choose this.
-
FHIRPath Inspect resource
FHIRPath Playground
Try out the FHIRPath playground and navigate inside this resource.
-
FHIRPath Documentation
FHIRPath Documentation
Find out what FHIRPath is or learn how to write FHIRPath scripts.
-
Custom Example generation
Custom Example generation beta
Experiment with resource instance generation using YamlGen and based on this profile.
This feature is in beta. You can help us improve it by giving feedback with the feedback button at the top of the screen.
StructureDefinition
- type Profile on StructureDefinition
- FHIR R4
This resource matches a canonical claim from this package.
Claim: http://hl7.org/fhir/
Canonical claims are used to verify ownership of your canonical URLs.
StructureDefinition | I | DomainResource | Element idStructureDefinition Structural Definition Alternate namesTemplate, Profile DefinitionA definition of a FHIR structure. This resource is used to describe the underlying resources, data types defined in FHIR, and also for describing extensions and constraints on resources and data types.
| |
id | Σ | 0..1 | string | There are no (further) constraints on this element Element idStructureDefinition.id Logical id of this artifact DefinitionThe logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes. The only time that a resource does not have an id is when it is being submitted to the server using a create operation. |
meta | Σ | 0..1 | Meta | There are no (further) constraints on this element Element idStructureDefinition.meta Metadata about the resource DefinitionThe 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.
|
implicitRules | Σ ?! | 0..1 | uri | There are no (further) constraints on this element Element idStructureDefinition.implicitRules A set of rules under which this content was created DefinitionA 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. 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.
|
language | 0..1 | codeBinding | There are no (further) constraints on this element Element idStructureDefinition.language Language of the resource content DefinitionThe base language in which the resource is written. 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). A human language.
| |
text | 0..1 | Narrative | There are no (further) constraints on this element Element idStructureDefinition.text Text summary of the resource, for human interpretation Alternate namesnarrative, html, xhtml, display DefinitionA 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. 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.
| |
contained | 0..* | Resource | There are no (further) constraints on this element Element idStructureDefinition.contained Contained, inline Resources Alternate namesinline resources, anonymous resources, contained resources DefinitionThese 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. 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.
| |
extension | I | 0..* | Extension | There are no (further) constraints on this element Element idStructureDefinition.extension Additional content defined by implementations Alternate namesextensions, user content DefinitionMay be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
|
modifierExtension | ?! I | 0..* | Extension | There are no (further) constraints on this element Element idStructureDefinition.modifierExtension Extensions that cannot be ignored Alternate namesextensions, user content DefinitionMay 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). 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
|
url | Σ | 1..1 | uri | Element idStructureDefinition.url Canonical identifier for this structure definition, represented as a URI (globally unique) Alternate namesurl, authoritative-url, destination, identity DefinitionAn absolute URI that is used to identify this structure definition 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 structure definition is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the structure definition is stored on different servers. Allows the structure definition to be referenced by a single globally unique identifier. 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.
|
identifier | Σ | 0..* | Identifier | Element idStructureDefinition.identifier Additional identifier for the structure definition DefinitionA formal identifier that is used to identify this structure definition when it is represented in other formats, or referenced in a specification, model, design or an instance. Allows externally provided and/or usable business identifiers to be easily associated with the module. Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this structure definition outside of FHIR, where it is not possible to use the logical URI.
|
version | Σ | 0..1 | string | Element idStructureDefinition.version Business version of the structure definition DefinitionThe identifier that is used to identify this version of the structure definition when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the structure definition 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. There may be different structure definition 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 structure definition with the format [url]|[version].
|
name | Σ I | 1..1 | string | Element idStructureDefinition.name Name for this structure definition (computer friendly) DefinitionA natural language name identifying the structure definition. This name should be usable as an identifier for the module by machine processing applications such as code generation. Support human navigation and code generation. 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.Some Examples:
|
title | Σ | 0..1 | string | Element idStructureDefinition.title Name for this structure definition (human friendly) DefinitionA short, descriptive, user-friendly title for the structure definition. This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.Applications don't have to use this name but can always fall back to it. The title also corresponds to the label for the root element.
|
status | Σ ?! | 1..1 | codeBinding | Element idStructureDefinition.status draft | active | retired | unknown DefinitionThe status of this structure definition. Enables tracking the life-cycle of the content. Allows filtering of structure definitions that are appropriate for use versus not. The lifecycle status of an artifact.
|
experimental | Σ | 0..1 | boolean | Element idStructureDefinition.experimental For testing purposes, not real usage DefinitionA Boolean value to indicate that this structure definition is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage. Enables experimental content to be developed following the same lifecycle that would be used for a production-level structure definition. Allows filtering of structure definitions that are appropriate for use versus not.
|
date | Σ | 0..1 | dateTime | Element idStructureDefinition.date Date last changed Alternate namesRevision Date DefinitionThe date (and optionally time) when the structure definition was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the structure definition changes. Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the structure definition. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.
|
publisher | Σ | 0..1 | string | Element idStructureDefinition.publisher Name of the publisher (organization or individual) DefinitionThe name of the organization or individual that published the structure definition. Helps establish the "authority/credibility" of the structure definition. May also allow for contact. Usually an organization but may be an individual. The publisher (or steward) of the structure definition is the organization or individual primarily responsible for the maintenance and upkeep of the structure definition. 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 structure definition. This item SHOULD be populated unless the information is available from context.
|
contact | Σ | 0..* | ContactDetail | Element idStructureDefinition.contact Contact details for the publisher DefinitionContact details to assist a user in finding and communicating with the publisher. May be a web site, an email address, a telephone number, etc.
|
description | 0..1 | markdown | Element idStructureDefinition.description Natural language description of the structure definition DefinitionA free text natural language description of the structure definition from a consumer's perspective. This description can be used to capture details such as why the structure definition 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 structure definition 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 structure definition is presumed to be the predominant language in the place the structure definition was created).
| |
useContext | Σ | 0..* | UsageContext | Element idStructureDefinition.useContext The context that the content is intended to support DefinitionThe 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 structure definition instances. Assist in searching for appropriate content. When multiple useContexts are specified, there is no expectation that all or any of the contexts apply.
|
jurisdiction | Σ | 0..* | CodeableConceptBinding | Element idStructureDefinition.jurisdiction Intended jurisdiction for structure definition (if applicable) DefinitionA legal or geographic region in which the structure definition is intended to be used. It may be possible for the structure definition to be used in jurisdictions other than those for which it was originally designed or intended. Countries and regions within which this artifact is targeted for use.
|
purpose | 0..1 | markdown | Element idStructureDefinition.purpose Why this structure definition is defined DefinitionExplanation of why this structure definition is needed and why it has been designed as it has. This element does not describe the usage of the structure definition. 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 structure definition.
| |
copyright | 0..1 | markdown | Element idStructureDefinition.copyright Use and/or publishing restrictions Alternate namesLicense, Restrictions DefinitionA copyright statement relating to the structure definition and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the structure definition. Consumers must be able to determine any legal restrictions on the use of the structure definition and/or its content. Systems are not required to have markdown support, so the text should be readable without markdown processing. The markdown syntax is GFM - see https://github.github.com/gfm/
| |
keyword | Σ | 0..* | CodingBinding | Element idStructureDefinition.keyword Assist with indexing and finding DefinitionA set of key words or terms from external terminologies that may be used to assist with indexing and searching of templates nby describing the use of this structure definition, or the content it describes. Assist in searching for appropriate StructureDefinitions. Codes may be defined very casually in enumerations or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Codes for the meaning of the defined structure (SNOMED CT and LOINC codes, as an example).
|
fhirVersion | Σ | 0..1 | codeBinding | Element idStructureDefinition.fhirVersion FHIR Version this StructureDefinition targets DefinitionThe version of the FHIR specification on which this StructureDefinition is based - this is the formal version of the specification, without the revision number, e.g. [publication].[major].[minor], which is 4.0.1. for this version. A StructureDefinition does not need to specify the target it applies to as StructureDefinitions will often be valid across multiple versions of FHIR. FHIR tooling can determine whether a StructureDefinition is consistent with a particular StructureDefinition if desired. All published FHIR Versions.
|
mapping | I | 0..* | BackboneElement | Element idStructureDefinition.mapping External specification that the content is mapped to DefinitionAn external specification that the content is mapped to.
|
id | 0..1 | string | There are no (further) constraints on this element Element idStructureDefinition.mapping.id Unique id for inter-element referencing DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
| |
extension | I | 0..* | Extension | There are no (further) constraints on this element Element idStructureDefinition.mapping.extension Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
|
modifierExtension | Σ ?! I | 0..* | Extension | There are no (further) constraints on this element Element idStructureDefinition.mapping.modifierExtension Extensions that cannot be ignored even if unrecognized Alternate namesextensions, user content, modifiers DefinitionMay 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). 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. 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.
|
identity | 1..1 | id | Element idStructureDefinition.mapping.identity Internal id when this mapping is used DefinitionAn Internal id that is used to identify this mapping set when specific mappings are made. The specification is described once, with general comments, and then specific mappings are made that reference this declaration.
| |
uri | I | 0..1 | uri | Element idStructureDefinition.mapping.uri Identifies what this mapping refers to DefinitionAn absolute URI that identifies the specification that this mapping is expressed to. A formal identity for the specification being mapped to helps with identifying maps consistently.
|
name | I | 0..1 | string | Element idStructureDefinition.mapping.name Names what this mapping refers to DefinitionA name for the specification that is being mapped to. Note that FHIR strings SHALL NOT exceed 1MB in size
|
comment | 0..1 | string | Element idStructureDefinition.mapping.comment Versions, Issues, Scope limitations etc. DefinitionComments about this mapping, including version notes, issues, scope limitations, and other important notes for usage. Note that FHIR strings SHALL NOT exceed 1MB in size
| |
kind | Σ | 1..1 | codeBinding | Element idStructureDefinition.kind primitive-type | complex-type | resource | logical DefinitionDefines the kind of structure that this definition is describing. Note that FHIR strings SHALL NOT exceed 1MB in size Defines the type of structure that a definition is describing.
|
abstract | Σ | 1..1 | boolean | Element idStructureDefinition.abstract Whether the structure is abstract DefinitionWhether structure this definition describes is abstract or not - that is, whether the structure is not intended to be instantiated. For Resources and Data types, abstract types will never be exchanged between systems. Abstract Resources cannot be instantiated - a concrete sub-type must be used. Abstract datatypes and extensions cannot be used in an instance. For logical models, the exact implication of "abstract" will rest with the author, depending how the logical model is used. Flagging a constraint structure as abstract conveys design intent but makes no difference to how the structure definition is handled. Note that inline declared elements that are given the type "Element" in the StructureDefinition, but have children described, are anonymous concrete types that specialize Element.
|
context | Σ I | 0..* | BackboneElement | Element idStructureDefinition.context If an extension, where it can be used in instances DefinitionIdentifies the types of resource or data type elements to which the extension can be applied.
|
id | 0..1 | string | There are no (further) constraints on this element Element idStructureDefinition.context.id Unique id for inter-element referencing DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
| |
extension | I | 0..* | Extension | There are no (further) constraints on this element Element idStructureDefinition.context.extension Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
|
modifierExtension | Σ ?! I | 0..* | Extension | There are no (further) constraints on this element Element idStructureDefinition.context.modifierExtension Extensions that cannot be ignored even if unrecognized Alternate namesextensions, user content, modifiers DefinitionMay 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). 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. 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.
|
type | Σ | 1..1 | codeBinding | Element idStructureDefinition.context.type fhirpath | element | extension DefinitionDefines how to interpret the expression that defines what the context of the extension is. Note that FHIR strings SHALL NOT exceed 1MB in size How an extension context is interpreted.
|
expression | Σ | 1..1 | string | Element idStructureDefinition.context.expression Where the extension can be used in instances DefinitionAn expression that defines where an extension can be used in resources. Note that FHIR strings SHALL NOT exceed 1MB in size
|
contextInvariant | Σ I | 0..* | string | Element idStructureDefinition.contextInvariant FHIRPath invariants - when the extension can be used DefinitionA set of rules as FHIRPath Invariants about when the extension can be used (e.g. co-occurrence variants for the extension). All the rules must be true. The rules are only evaluated when the extension is present. When evaluating the invariant, the FHIRPath focus is the element that holds the extension, and %extension refers to the extension itself.
|
type | Σ I | 1..1 | uriBinding | Element idStructureDefinition.type Type defined or constrained by this structure DefinitionThe type this structure describes. If the derivation kind is 'specialization' then this is the master definition for a type, and there is always one of these (a data type, an extension, a resource, including abstract ones). Otherwise the structure definition is a constraint on the stated type (and in this case, the type cannot be an abstract type). References are URLs that are relative to http://hl7.org/fhir/StructureDefinition e.g. "string" is a reference to http://hl7.org/fhir/StructureDefinition/string. Absolute URLs are only allowed in logical models. Note that in the case of constraints, the type could be determined by chasing through the baseDefinition references until a concrete structure (derivation = specialization) is reached, or by looking at the path of the first element in the snapshot - if present - but providing the type directly makes for simpler tooling and indexing. The type must match the elements defined in the differential and the snapshot. For all FHIR defined types, the path name of the element will start with the type name. For logical models, where the type is a URL, the type name SHOULD start with the tail of the type URL where required. Either a resource or a data type, including logical model types.
|
baseDefinition | Σ I | 0..1 | canonical(StructureDefinition) | Element idStructureDefinition.baseDefinition Definition that this type is constrained/specialized from DefinitionAn absolute URI that is the base structure from which this type is derived, either by specialization or constraint. If differential constraints are specified in this structure, they are applied to the base in a "differential" fashion. If there is no base, then the differential constraints cannot be provided (snapshot only). Differential structures are useful for the editing perspective, and snapshot structures are suitable for operational use. The FHIR Project provides a number of tools/services to populate snapshots from differential constraints. Logical Models have a base of "Element" or another logical model. canonical(StructureDefinition) Constraints
|
derivation | Σ | 0..1 | codeBinding | Element idStructureDefinition.derivation specialization | constraint - How relates to base definition DefinitionHow the type relates to the baseDefinition. If the definition is a specialization, then it adds new elements in the differential, and the snapshot includes the inherited elements. If the definition is a constraint, then it cannot define new elements, it can only make new rules about existing content (see Profiling Resources). How a type relates to its baseDefinition.
|
snapshot | I | 0..1 | BackboneElement | Element idStructureDefinition.snapshot Snapshot view of the structure DefinitionA snapshot view is expressed in a standalone form that can be used and interpreted without considering the base StructureDefinition.
|
id | 0..1 | string | There are no (further) constraints on this element Element idStructureDefinition.snapshot.id Unique id for inter-element referencing DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
| |
extension | I | 0..* | Extension | There are no (further) constraints on this element Element idStructureDefinition.snapshot.extension Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
|
modifierExtension | Σ ?! I | 0..* | Extension | There are no (further) constraints on this element Element idStructureDefinition.snapshot.modifierExtension Extensions that cannot be ignored even if unrecognized Alternate namesextensions, user content, modifiers DefinitionMay 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). 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. 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.
|
element | I | 1..* | ElementDefinition | Element idStructureDefinition.snapshot.element Definition of elements in the resource (if no StructureDefinition) DefinitionCaptures constraints on each element within the resource.
|
differential | I | 0..1 | BackboneElement | Element idStructureDefinition.differential Differential view of the structure DefinitionA differential view is expressed relative to the base StructureDefinition - a statement of differences that it applies.
|
id | 0..1 | string | There are no (further) constraints on this element Element idStructureDefinition.differential.id Unique id for inter-element referencing DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
| |
extension | I | 0..* | Extension | There are no (further) constraints on this element Element idStructureDefinition.differential.extension Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
|
modifierExtension | Σ ?! I | 0..* | Extension | There are no (further) constraints on this element Element idStructureDefinition.differential.modifierExtension Extensions that cannot be ignored even if unrecognized Alternate namesextensions, user content, modifiers DefinitionMay 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). 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. 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.
|
element | I | 1..* | ElementDefinition | Element idStructureDefinition.differential.element Definition of elements in the resource (if no StructureDefinition) DefinitionCaptures constraints on each element within the resource.
|