This page is part of the FHIR Specification (v0.11: DSTU 1 Ballot 3). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions
How an extension context is interpreted
Formal value Set definition (identifier http://hl7.org/fhir/vs/extension-context): XML or JSON.
This value set defines its own codes:
How an extension context is interpreted
This value set defines it's own terms in the system http://hl7.org/fhir/extension-context
| Code | Display | Definition |
| resource | The context is all elements matching a particular resource element path. | |
| datatype | The context is all nodes matching a particular data type element path (root or repeating element) or all elements referencing a particular primitive data type (expressed as the datatype name). | |
| mapping | The context is all nodes whose mapping to a specified reference model corresponds to a particular mapping structure. The context identifies the mapping target. The mapping should clearly identify where such an extension could be used, though this. | |
| extension | The context is a particular extension from a particular profile. Expressed as uri#name, where uri identifies the profile and #name identifies the extension code. |
These codes are used in the following places:
See the full registry of codes defined as part of FHIR.
The OID for the value set is 2.16.840.1.113883.4.642.2.145 (and the OID for the implicit code system is 2.16.840.1.113883.4.642.1.145) (OIDs are not used in FHIR, but may be used in v3, or OID based terminology systems).
Explanation of the columns that may appear on this page:
| Id | The internal identifier for the concept (when the value set defines its own codes) |
| Level | A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies |
| 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) |
| Display | The display (used in the display element of a Coding) |
| Definition | An explanation of the meaning of the concept |
| Comments | Additional notes about how to use the code |