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4.3.2.231 CodeSystem http://hl7.org/fhir/extension-context-type

Responsible Owner: FHIR Infrastructure icon Work Group Normative (from v4.0.0) Use Context: Country: World
Official URL: http://hl7.org/fhir/extension-context-type Version: 6.0.0-ballot3
active as of 2021-01-04 Computable Name: ExtensionContextType
Flags: CaseSensitive, Complete. All codes ValueSet: Extension Context Type OID: 2.16.840.1.113883.4.642.4.1013

"This Code system is used in the following FHIR core-defined or referenced value sets:

4.3.2.231.1 Definition

How an extension context is interpreted.

4.3.2.231.2 Content

Generated Narrative: CodeSystem extension-context-type

Last updated: 2025-11-08T03:13:31.478Z

This case-sensitive code system http://hl7.org/fhir/extension-context-type defines the following codes:

CodeDisplayDefinitionCopy
fhirpath FHIRPath

The context is all elements that match the FHIRPath query found in the expression.

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element Element ID

The context is any element that has an ElementDefinition.id that matches that found in the expression. This includes ElementDefinition Ids that have slicing identifiers, and also includes specialization logic (see Extension Context). The full path for the element is [url]#[elementid]. If there is no #, the Element id is one defined in the base specification. When an element has assigned type, the type is also an assigned id for this element, which means that the type can also be used here.

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extension Extension URL

The context is a particular extension from a particular StructureDefinition, and the expression is just a uri that identifies the extension.

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See the full registry of code systems defined as part of FHIR.

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. See Code System for further information.
Source The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
Display The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition An explanation of the meaning of the concept
Comments Additional notes about how to use the code