STU 3 Ballot

This page is part of the FHIR Specification (v1.6.0: STU 3 Ballot 4). 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

Extension Unit for numeric answer - Detailed Descriptions

Detailed Descriptions for the elements in the extension.

Extension
Definition

Provides a computable unit of measure associated with numeric questions to support subsequent computation on responses.

Control0..1 This element is affected by the following invariants: ele-1
Comments

The human-readable unit is conveyed as a display element. This element is for computation purposes.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (xpath: @value|f:*|h:div)
ext-1: Must have either extensions or value[x], not both (xpath: exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')]))
inv-16: Lookup Questionnaire can only be specified for questions with a type of "integer" or "decimal" (xpath: parent::*/f:type/@value=('integer', 'decimal'))
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.

Control0..1
Typestring
Extension.extension(extension)
Definition

An Extension

Control0..0
TypeExtension
Extension.url
Definition

Source of the definition for the extension code - a logical name or a URL.

Control1..1
Typeuri
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 Valuehttp://hl7.org/fhir/StructureDefinition/questionnaire-unit
Extension.valueCoding
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).

Control1..1
TypeCoding