Release 4 5 Preview #2
This page is part of the FHIR Specification (v4.0.1: R4 - Mixed Normative and STU ). This is the current published version in it's permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

General Extensions for use by FHIR Implementers

FHIR Infrastructure Work Group Maturity Level : N/A Standards Status : Informative
A set of general extensions defined for the convenience of implementers that use FHIR resources


Extensions :
data-absent-reason Data Absent Reason :

Provides a reason why the expected value or elements in the element that is extended are missing.

bodySite BodyStructure Reference :

Record details about the anatomical location of a specimen or body part. This resource may be used when a coded concept does not provide the necessary detail needed for the use case.

rendered-value Rendered Value :

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.

geolocation Geolocation :

The absolute geographic location of the Location, expressed using the WGS84 datum (This is the same co-ordinate system used in KML).

translation Translation :

Language translation from base language of resource to another language.

tz-code Timezone Code :

An IANA timezone code for the timezone offset per BCP 175 . The offset is specified as part of a dateTime/instant (or using the tzOffset extension on a date if necessary). The timezone code may also be provided to allow for human display of the location associated with the offset.

tz-offset Timezone Offset :

Timezone offset, for dates where timezone is not allowed as part of the base date.

relative-date Relative Date Criteria :

Specifies that a date is relative to some event. The event happens [Duration] after [Event].

language Human Language :

The Human Language of the item.

originalText Original Text :

A human language representation of the concept (resource/element) as seen/selected/uttered by the user who entered the data and/or which represents the full intended meaning of the user. This can be provided either directly as text, or as a url that is a reference to a portion of the narrative of a resource ( DomainResource.text ).

narrativeLink Narrative Link :

A human language representation of the concept (resource/element), as a url that is a reference to a portion of the narrative of a resource ( DomainResource.text ).

replaces replaces :

Indicates a resource that this resource is replacing.

display Display Name :

The title or other name to display when referencing a resource by canonical URL.

variable Variable :

Variable specifying a logic to generate a variable for use in subsequent logic. The name of the variable will be added to FHIRPath's context when processing descendants of the element that contains this extension.

ordinalValue Ordinal Value :

A numeric value that allows the comparison (less than, greater than) or other numerical manipulation of a concept (e.g. Adding up components of a score). Scores are usually a whole number, but occasionally decimals are encountered in scores.

designNote Design Note :

Information captured by the author/maintainer of the questionnaire for development purposes, not intended to be seen by users.