Snapshot 3: Connectathon 32 Base

This is Snapshot #3 for FHIR R5, released to support Connectathon 32. For a full list of available versions, see the Directory of published versions.

Extension type-must-support - Detailed Descriptions

FHIR Infrastructure Work Group Maturity Level: 1Trial UseUse Context: Any

Detailed Descriptions for the elements in the extension.

Extension
Element IdExtension
Definition

If true indicates that the specified type, profile or targetProfile must be supported by implementations.

Short DisplayIf true, the specified type/profile/target must be supported by implementations
Cardinality0..1
Comments

An element may be labelled as must support. This extension clarifies which types/profiles/targetProfiles are must-support. It has no meaning if the element itself is not must-support. If the element is labelled must-support, and none of the options are labelled as must support, then an application must support at least one of the possible options, but is not required to support all of them. Specific details on what it means to 'support' the specified profile will be defined either by the implementation guide, by the profile and/or in usage notes for the element holding the extension. If this extension is not declared on a mustSupport element, the presumption is that implementations need only support one of the potential types unless other documentation in the specification explicitly dictates otherwise.

Invariants
Inherited by this element
ele-1RuleAll FHIR elements must have a @value or childrenhasValue() or (children().count() > id.count())
ext-1RuleMust have either extensions or value[x], not bothextension.exists() != value.exists()
Extension.id
Element IdExtension.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 DisplayUnique id for inter-element referencing
Cardinality0..1
Typeid
Extension.extension
Element IdExtension.extension
Definition

An Extension

Short DisplayExtension
Cardinality0..0
TypeExtension
Invariants
Inherited by this element
ele-1RuleAll FHIR elements must have a @value or childrenhasValue() or (children().count() > id.count())
ext-1RuleMust have either extensions or value[x], not bothextension.exists() != value.exists()
SlicingThis element introduces a set of slices. The slicing rules are:
  • unordered
  • Open
  • discriminators: value:url
Extension.url
Element IdExtension.url
Definition

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

Short Displayidentifies the meaning of the extension
Cardinality1..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/elementdefinition-type-must-support
Extension.value[x]
Element IdExtension.value[x]
Definition

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

Short DisplayValue of extension
Cardinality1..1
Typeboolean
[x] NoteSee Choice of Datatypes for further information about how to use [x]
Invariants
Inherited by this element
ele-1RuleAll FHIR elements must have a @value or childrenhasValue() or (children().count() > id.count())