This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions icon CodeSystem http://hl7.org/fhir/action-selection-behavior

Clinical Decision Support icon Work Group Maturity Level: 3Trial Use Use Context: Country: World
Official URL: http://hl7.org/fhir/action-selection-behavior Version: 6.0.0-cibuild
active as of 2021-01-04 Computable Name: ActionSelectionBehavior
Flags: CaseSensitive, Complete. All codes ValueSet: Action Selection Behavior OID: 2.16.840.1.113883.4.642.4.802

This Code system is used in the following value sets:

Defines selection behavior of a group.

This case-sensitive code system http://hl7.org/fhir/action-selection-behavior defines the following codes:

any AnyAny number of the actions in the group may be chosen, from zero to all.btn btn
all AllAll the actions in the group must be selected as a single unit.btn btn
all-or-none All Or NoneAll the actions in the group are meant to be chosen as a single unit: either all must be selected by the end user, or none may be selected.btn btn
exactly-one Exactly OneThe end user must choose one and only one of the selectable actions in the group. The user SHALL NOT choose none of the actions in the group.btn btn
at-most-one At Most OneThe end user may choose zero or at most one of the actions in the group.btn btn
one-or-more One Or MoreThe end user must choose a minimum of one, and as many additional as desired.btn btn


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

Explanation of the columns that may appear on this page:

LevelA few code lists that FHIR defines are hierarchical - each code is assigned a level. See Code System for further information.
SourceThe source of the definition of the code (when the value set draws in codes defined elsewhere)
CodeThe code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
DisplayThe 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
DefinitionAn explanation of the meaning of the concept
CommentsAdditional notes about how to use the code