Extensions
ExtensionManagementZone (Extension) C Extension There are no (further) constraints on this elementElement idExtension
Short descriptionOptional Extensions Element
DefinitionOptional Extension Element - found in all resources.
Data typeConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints- ele-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()
Mappings- rim: n/a
- rim: N/A
id 0..1 string There are no (further) constraints on this elementElement idExtension.id
Short descriptionUnique id for inter-element referencing
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Data typeMappings- rim: n/a
extension C 0..* Extension There are no (further) constraints on this elementElement idExtension.extension
Short descriptionAdditional content defined by implementations
Alternate namesextensions, user content
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
CommentsThere can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Data typeSlicingUnordered, Open, by url(Value)
Extensions are always sliced by (at least) url
ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints- ele-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()
Mappings- rim: n/a
- rim: N/A
url 1..1 uriFixed Value Element idExtension.url
Short descriptionidentifies the meaning of the extension
DefinitionSource of the definition for the extension code - a logical name or a URL.
CommentsThe 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.
Data typeFixed valuehttps://nshealth.ca/fhir/StructureDefinition/Extension-ManagementZone
Mappings- rim: N/A
value[x] 0..1 Binding Element idExtension.value[x]
Short descriptionValue of extension
DefinitionValue of extension - must be one of a constrained set of the data types (see Extensibility for a list).
BindingConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints- ele-1: All FHIR elements must have a @value or children
hasValue() or (children().count() > id.count())
Mappings- rim: n/a
- rim: N/A
valueCoding Coding Data type