This page is part of the FHIR Specification (v3.3.0: R4 Ballot 2). 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
FHIR Infrastructure Work Group | Maturity Level: 1 | Informative | Use Context: Any |
Detailed Descriptions for the elements in the extension.
Extension | |
Element Id | Extension |
Definition | Provides a rendered version of the value intended for human display. For example, a sensitive identifier (e.g. social security number) partially obscured by asterisks; a drivers licence number with dashes inserted; a date formatted as MMM dd, yyyy; etc. |
Control | 0..1 This element is affected by the following invariants: ele-1 |
Comments | In some cases, this extension may be present and the value won't be present. For example if the recipient only has permission to see a partially masked view of a value. The rendering may be realm-specific. (E.g. the use of ',' vs. '.' when rendering numbers.). |
Invariants | Defined 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')])) |
Extension.id | |
Element Id | 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 |
Extension.extension | |
Element Id | Extension.extension |
Definition | An Extension |
Control | 0..0 |
Type | Extension |
Slicing | This element introduces a set of slices. The slicing rules are:
|
Extension.url | |
Element Id | 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/StructureDefinition/rendered-value |
Extension.valueString | |
Element Id | Extension.valueString |
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). |
Control | 0..1 |
Type | string |