HL7.FHIR.US.CORE\US Core Direct email Extension - Definitions

This page is part of the US Core (v3.2.0: STU4 Ballot 1) based on FHIR R4. The current version which supercedes this version is 5.0.1. For a full list of available versions, see the Directory of published versions

Extension: USCoreDirectEmailExtension - Detailed Descriptions

Definitions for the us-core-direct extension.

1. Extension
Definition	This email address is associated with a "direct" service - e.g. http://wiki.directproject.org/Addressing+Specification. This extension can only be used on contact points where the system = 'email'
Control	0..1 This element is affected by the following invariants: ele-1
Comments	This extension can only be used on contact points where the system = 'email'.
Invariants	Defined on this element 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())
2. 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.
Control	0..1
Type	string
3. Extension.extension
Definition	May 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.
Control	0..*
Type	Extension
Alternate Names	extensions, user content
Comments	There 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.
Invariants	Defined on this element 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())
Slicing	This element introduces a set of slices on Extension.extension. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
4. Extension.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Control	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/us/core/StructureDefinition/us-core-direct
5. Extension.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Control	1..1
Type	boolean
[x] Note	See Choice of Data Types for further information about how to use [x]
Invariants	Defined on this element ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
Slicing	This element introduces a set of slices on Extension.value[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators: type @ $this
6. Extension.value[x]:valueBoolean
SliceName	valueBoolean
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Control	1..1
Type	boolean
[x] Note	See Choice of Data Types for further information about how to use [x]
Invariants	Defined on this element ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))