This page is part of the FHIR Specification (v5.0.0-ballot: R5 Ballot - see ballot notes). 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 R3 R2
Vocabulary Work Group | Maturity Level: 1 | Informative | Use Context: Any |
Detailed Descriptions for the elements in the extension.
Extension | |||||||||||||
Element Id | Extension | ||||||||||||
Definition | Indicates an authoritative source for performing value set expansions. | ||||||||||||
Short Display | Reference to a trusted expansion | ||||||||||||
Cardinality | 0..* | ||||||||||||
Comments | If the designated "authoritative source" (as specified in the valueset-authoritativeSource extension, if present) is unable to provide a valid expansion, this extension indicates an alternate authoritative source where the value set expansion may be performed. The alternate authoritative source url must reference a FHIR terminology server endpoint (the [base] url of the FHIR server). | ||||||||||||
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. | ||||||||||||
Short Display | Unique id for inter-element referencing | ||||||||||||
Cardinality | 0..1 | ||||||||||||
Type | id | ||||||||||||
Extension.extension | |||||||||||||
Element Id | Extension.extension | ||||||||||||
Definition | An Extension | ||||||||||||
Short Display | Extension | ||||||||||||
Cardinality | 0..0 | ||||||||||||
Type | Extension | ||||||||||||
Invariants |
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Slicing | This element introduces a set of slices. The slicing rules are:
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Extension.url | |||||||||||||
Element Id | Extension.url | ||||||||||||
Definition | Source of the definition for the extension code - a logical name or a URL. | ||||||||||||
Short Display | identifies the meaning of the extension | ||||||||||||
Cardinality | 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/valueset-trusted-expansion | ||||||||||||
Extension.value[x] | |||||||||||||
Element Id | Extension.value[x] | ||||||||||||
Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). | ||||||||||||
Short Display | Value of extension | ||||||||||||
Cardinality | 1..1 | ||||||||||||
Type | url | ||||||||||||
[x] Note | See Choice of Datatypes for further information about how to use [x] | ||||||||||||
Invariants |
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