---
type: "codesystem"
title: "Action Selection Behavior"
codesystem: "action-selection-behavior"
---
# Action Selection Behavior

- **Official URL**: http://hl7.org/fhir/action-selection-behavior
- **Version**: 6.0.0
- **Status**: active
- **Name**: ActionSelectionBehavior
- **Title**: Action Selection Behavior
- **Publisher**: HL7 (FHIR Project)
- **Description**: Defines selection behavior of a group.
- **Case Sensitive**: true
- **Content**: complete

## Concepts

| Code | Display | Definition |
| --- | --- | --- |
| any | Any | Any number of the actions in the group may be chosen, from zero to all. |
| all | All | All the actions in the group must be selected as a single unit. |
| all-or-none | All Or None | All 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. |
| exactly-one | Exactly One | The 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. |
| at-most-one | At Most One | The end user may choose zero or at most one of the actions in the group. |
| one-or-more | One Or More | The end user must choose a minimum of one, and as many additional as desired. |

## CodeSystem XML



```xml
<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="action-selection-behavior"/>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="cds"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="normative"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="3"/>
  </extension>
  <url value="http://hl7.org/fhir/action-selection-behavior"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.4.802"/>
  </identifier>
  <identifier>
    <use value="old"/>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.1.785"/>
  </identifier>
  <version value="6.0.0"/>
  <name value="ActionSelectionBehavior"/>
  <title value="Action Selection Behavior"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2021-01-05T10:01:24+11:00"/>
  <publisher value="HL7 (FHIR Project)"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="fhir@lists.hl7.org"/>
    </telecom>
  </contact>
  <description value="Defines selection behavior of a group."/>
  <caseSensitive value="true"/>
  <valueSet value="http://hl7.org/fhir/ValueSet/action-selection-behavior"/>
  <content value="complete"/>
  <concept>
    <code value="any"/>
    <display value="Any"/>
    <definition value="Any number of the actions in the group may be chosen, from zero to all."/>
  </concept>
  <concept>
    <code value="all"/>
    <display value="All"/>
    <definition value="All the actions in the group must be selected as a single unit."/>
  </concept>
  <concept>
    <code value="all-or-none"/>
    <display value="All Or None"/>
    <definition value="All 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."/>
  </concept>
  <concept>
    <code value="exactly-one"/>
    <display value="Exactly One"/>
    <definition value="The 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."/>
  </concept>
  <concept>
    <code value="at-most-one"/>
    <display value="At Most One"/>
    <definition value="The end user may choose zero or at most one of the actions in the group."/>
  </concept>
  <concept>
    <code value="one-or-more"/>
    <display value="One Or More"/>
    <definition value="The end user must choose a minimum of one, and as many additional as desired."/>
  </concept>
</CodeSystem>
```