FHIR Extensions Pack
5.2.0-ballot - 5.2.0 Ballot - September 2024) International flag

FHIR Extensions Pack, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 5.2.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-extensions/ and changes regularly. See the Directory of published versions

Extension: DefaultValue - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 3

Definitions for the cqf-defaultValue extension.

Guidance on how to interpret the contents of this table can be found here

0. Extension
Definition

An Extension


Optional Extension Element - found in all resources.

ShortExtensionOptional Extensions Element
Control0..1*
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
2. Extension.url
Definition

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

Shortidentifies the meaning of the extension
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.

Control1..1
Typeuri
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
Fixed Valuehttp://hl7.org/fhir/StructureDefinition/cqf-defaultValue
4. Extension.value[x]
Definition

Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

ShortValue of extension
Control0..1
This element is affected by the following invariants: ext-1
TypeChoice of: string, boolean, integer, decimal, date, dateTime, Coding, CodeableConcept, Period, Range, Quantity, Ratio, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, SampledData, id, positiveInt, Distance, Availability, integer64, Duration, canonical, RelatedArtifact, base64Binary, UsageContext, Timing, ExtendedContactDetail, ParameterDefinition, code, oid, instant, ContactPoint, HumanName, Money, markdown, Age, Reference, TriggerDefinition, uri, url, Annotation, ContactDetail, Expression, CodeableReference, Signature, unsignedInt, time
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))