Name	Flags	Card.	Type	Description & Constraints
ActionDefinition	Σ		Element	The definition of an action to be performed
actionIdentifier	Σ	0..1	Identifier	Unique identifier
label	Σ	0..1	string	User-visible label for the action (e.g. 1. or A.)
title	Σ	0..1	string	User-visible title
description	Σ	0..1	string	Short description of the action
textEquivalent	Σ	0..1	string	Static text equivalent of the action, used if the dynamic aspects cannot be interpreted by the receiving system
concept	Σ	0..*	CodeableConcept	The meaning of the action or its sub-actions
supportingEvidence	Σ	0..*	Attachment	Evidence that supports taking the action
documentation	Σ	0..*	Attachment	Supporting documentation for the intended performer of the action
relatedAction	Σ	0..1	Element	Relationship to another action
actionIdentifier	Σ	1..1	Identifier	Identifier of the related action
relationship	Σ	1..1	code	before | after ActionRelationshipType ( Required)
offset[x]	Σ	0..1		Time offset for the relationship
offsetQuantity			Duration
offsetRange			Range
anchor	Σ	0..1	code	start | end ActionRelationshipAnchor ( Required)
participantType	Σ	0..*	code	patient | practitioner | related-person ParticipantType ( Required)
type	Σ	0..1	code	create | update | remove | fire-event ActionType ( Extensible)
behavior	Σ	0..*	Element	Defines behaviors such as selection and grouping
type	Σ	1..1	Coding	The type of behavior (grouping, precheck, selection, cardinality, etc) ActionBehaviorType ( Extensible)
value	Σ	1..1	Coding	Specific behavior (e.g. required, at-most-one, single, etc)
resource	Σ	0..1	Reference( Any)	Static portion of the action definition
customization	Σ	0..*	Element	Dynamic aspects of the definition
path	Σ	1..1	string	The path to the element to be set dynamically
expression	Σ	1..1	string	An expression that provides the dynamic value for the customization
action	Σ	0..*	ActionDefinition	A sub-action
Documentation for this format