This page is part of the FHIR Specification (v4.1.0: Release 4B Ballot #1). 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 | Explicit precision of the number. This is the number of significant decimal places after the decimal point, irrespective of how many are actually present in the explicitly represented decimal. | ||||||||||||
Cardinality | 0..1 This element is affected by the following invariants: ele-1 | ||||||||||||
Comments | The presence of this extension does not change conformance expectations with regard to rendering and calculations that use the number - these are still based on the raw decimal value. Applications that perform calculations SHALL ensure that this extension is removed or updated to the correct precision value if the number is changed. Applications should consider using the exponential form (e.g. 2.10e3) on the raw decimal to manage significant figures, but should be mindful of human display when doing so. | ||||||||||||
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. | ||||||||||||
Cardinality | 0..1 | ||||||||||||
Type | string | ||||||||||||
Extension.extension | |||||||||||||
Element Id | Extension.extension | ||||||||||||
Definition | An 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. | ||||||||||||
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/quantity-precision | ||||||||||||
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). | ||||||||||||
Cardinality | 1..1 | ||||||||||||
Type | integer | ||||||||||||
[x] Note | See Choice of Data Types for further information about how to use [x] | ||||||||||||
Invariants |
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