|FHIR Infrastructure Work Group||Maturity Level : N||Normative (from v4.0.0)||Use Context : Any|
|This page has been approved as part of an ANSI standard. See the Conformance Package for further details.|
This is a code system defined by the FHIR project.
Indication of the degree of conformance expectations associated with a binding.
|Committee:||FHIR Infrastructure Work Group|
|Source Resource||XML / JSON|
This Code system is used in the following value sets:
|required||Required||To be conformant, the concept in this element SHALL be from the specified value set.|
|extensible||Extensible||To be conformant, the concept in this element SHALL be from the specified value set if any of the codes within the value set can apply to the concept being communicated. If the value set does not cover the concept (based on human review), alternate codings (or, data type allowing, text) may be included instead.|
|preferred||Preferred||Instances are encouraged to draw from the specified codes for interoperability purposes but are not required to do so to be considered conformant.|
|example||Example||Instances are not expected or even encouraged to draw from the specified value set. The value set merely provides examples of the types of concepts intended to be included.|
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|