This page is part of the FHIR Specification (v3.5.0: R4 Ballot #2). 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: R4B R4
FHIR Infrastructure Work Group | Maturity Level: 1 | Informative | Use Context: Any |
Detailed Descriptions for the elements in the extension.
Extension | |||||||||||||
Element Id | Extension | ||||||||||||
Definition | A date/time value that is determined based on a duration offset from a target event. | ||||||||||||
Control | 0..1 This element is affected by the following invariants: ele-1 | ||||||||||||
Invariants |
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Extension.id | |||||||||||||
Element Id | Extension.id | ||||||||||||
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. | ||||||||||||
Control | 0..1 | ||||||||||||
Type | string | ||||||||||||
Extension.extension | |||||||||||||
Element Id | Extension.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. | ||||||||||||
Control | 0..* | ||||||||||||
Type | Extension | ||||||||||||
Alternate Names | extensions, 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. | ||||||||||||
Slicing | This element introduces a set of slices. The slicing rules are:
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Extension.extension(target) | |||||||||||||
Element Id | Extension.extension:target | ||||||||||||
Definition | The event that the date/time value is relative to. | ||||||||||||
Control | 1..1 | ||||||||||||
Type | Extension | ||||||||||||
Extension.extension.id | |||||||||||||
Element Id | Extension.extension:target.id | ||||||||||||
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. | ||||||||||||
Control | 0..1 | ||||||||||||
Type | string | ||||||||||||
Extension.extension.extension | |||||||||||||
Element Id | Extension.extension:target.extension | ||||||||||||
Definition | An Extension | ||||||||||||
Control | 0..0 | ||||||||||||
Type | Extension | ||||||||||||
Slicing | This element introduces a set of slices. The slicing rules are:
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Extension.extension.url | |||||||||||||
Element Id | Extension.extension:target.url | ||||||||||||
Definition | Source of the definition for the extension code - a logical name or a URL. | ||||||||||||
Control | 1..1 | ||||||||||||
Type | uri | ||||||||||||
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 Value | target | ||||||||||||
Extension.extension.valueReference | |||||||||||||
Element Id | Extension.extension:target.valueReference | ||||||||||||
Definition | Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). | ||||||||||||
Control | 0..1 | ||||||||||||
Type | Reference(Resource) | ||||||||||||
Extension.extension(targetPath) | |||||||||||||
Element Id | Extension.extension:targetPath | ||||||||||||
Definition | The path to the element that defines the effective period for the event that the date/time value is relative to. | ||||||||||||
Control | 1..1 | ||||||||||||
Type | Extension | ||||||||||||
Comments | The specified path must be resolvable from the type of the target. The path is allowed to contain qualifiers (.) to traverse sub-elements, as well as indexers ([x]) to traverse multiple-cardinality sub-elements. Note that the index must be an integer constant. | ||||||||||||
Extension.extension.id | |||||||||||||
Element Id | Extension.extension:targetPath.id | ||||||||||||
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. | ||||||||||||
Control | 0..1 | ||||||||||||
Type | string | ||||||||||||
Extension.extension.extension | |||||||||||||
Element Id | Extension.extension:targetPath.extension | ||||||||||||
Definition | An Extension | ||||||||||||
Control | 0..0 | ||||||||||||
Type | Extension | ||||||||||||
Slicing | This element introduces a set of slices. The slicing rules are:
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Extension.extension.url | |||||||||||||
Element Id | Extension.extension:targetPath.url | ||||||||||||
Definition | Source of the definition for the extension code - a logical name or a URL. | ||||||||||||
Control | 1..1 | ||||||||||||
Type | uri | ||||||||||||
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 Value | targetPath | ||||||||||||
Extension.extension.valueString | |||||||||||||
Element Id | Extension.extension:targetPath.valueString | ||||||||||||
Definition | Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). | ||||||||||||
Control | 0..1 | ||||||||||||
Type | string | ||||||||||||
Extension.extension(relationship) | |||||||||||||
Element Id | Extension.extension:relationship | ||||||||||||
Definition | The relationship to the effective period of the target event that the date/time value is relative to. | ||||||||||||
Control | 1..1 | ||||||||||||
Type | Extension | ||||||||||||
Extension.extension.id | |||||||||||||
Element Id | Extension.extension:relationship.id | ||||||||||||
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. | ||||||||||||
Control | 0..1 | ||||||||||||
Type | string | ||||||||||||
Extension.extension.extension | |||||||||||||
Element Id | Extension.extension:relationship.extension | ||||||||||||
Definition | An Extension | ||||||||||||
Control | 0..0 | ||||||||||||
Type | Extension | ||||||||||||
Slicing | This element introduces a set of slices. The slicing rules are:
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Extension.extension.url | |||||||||||||
Element Id | Extension.extension:relationship.url | ||||||||||||
Definition | Source of the definition for the extension code - a logical name or a URL. | ||||||||||||
Control | 1..1 | ||||||||||||
Type | uri | ||||||||||||
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 Value | relationship | ||||||||||||
Extension.extension.valueCode | |||||||||||||
Element Id | Extension.extension:relationship.valueCode | ||||||||||||
Definition | Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). | ||||||||||||
Control | 0..1 | ||||||||||||
Terminology Binding | A type that describes how two events are related in time. The codes SHALL be taken from ActionRelationshipType | ||||||||||||
Type | code | ||||||||||||
Extension.extension(offset) | |||||||||||||
Element Id | Extension.extension:offset | ||||||||||||
Definition | A duration or range of durations that specifies the offset between the date/time value and the target event. For example, 30-60 minutes before. | ||||||||||||
Control | 1..1 | ||||||||||||
Type | Extension | ||||||||||||
Extension.extension.id | |||||||||||||
Element Id | Extension.extension:offset.id | ||||||||||||
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. | ||||||||||||
Control | 0..1 | ||||||||||||
Type | string | ||||||||||||
Extension.extension.extension | |||||||||||||
Element Id | Extension.extension:offset.extension | ||||||||||||
Definition | An Extension | ||||||||||||
Control | 0..0 | ||||||||||||
Type | Extension | ||||||||||||
Slicing | This element introduces a set of slices. The slicing rules are:
| ||||||||||||
Extension.extension.url | |||||||||||||
Element Id | Extension.extension:offset.url | ||||||||||||
Definition | Source of the definition for the extension code - a logical name or a URL. | ||||||||||||
Control | 1..1 | ||||||||||||
Type | uri | ||||||||||||
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 Value | offset | ||||||||||||
Extension.extension.value[x] | |||||||||||||
Element Id | Extension.extension:offset.value[x] | ||||||||||||
Definition | Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). | ||||||||||||
Control | 1..1 | ||||||||||||
Type | Choice of: Duration, Range | ||||||||||||
[x] Note | See Choice of Data Types for further information about how to use [x] | ||||||||||||
Extension.url | |||||||||||||
Element Id | Extension.url | ||||||||||||
Definition | Source of the definition for the extension code - a logical name or a URL. | ||||||||||||
Control | 1..1 | ||||||||||||
Type | uri | ||||||||||||
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 Value | http://hl7.org/fhir/StructureDefinition/cqf-relativeDateTime | ||||||||||||
Extension.value[x] | |||||||||||||
Element Id | Extension.value[x] | ||||||||||||
Definition | Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). | ||||||||||||
Control | 0..0 | ||||||||||||
Type | Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ParameterDefinition, DataRequirement, RelatedArtifact, ContactDetail, Contributor, TriggerDefinition, Expression, UsageContext, Dosage | ||||||||||||
[x] Note | See Choice of Data Types for further information about how to use [x] |