Name	Flags	Card.	Type	Description & Constraints
Questionnaire	TU		DomainResource	A structured set of questions + Warning: Name should be usable as an identifier for the module by machine processing applications such as code generation + Rule: The link ids for groups and questions must be unique within the questionnaire Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension Interfaces Implemented: MetadataResource
url	Σ C	0..1	uri	Canonical identifier for this questionnaire, represented as an absolute URI (globally unique) + Warning: URL should not contain | or # - these characters make processing canonical references problematic
identifier	Σ	0..*	Identifier	Business identifier for questionnaire
version	Σ	0..1	string	Business version of the questionnaire
versionAlgorithm[x]	Σ	0..1		How to compare versions Binding: Version Algorithm ( Extensible)
versionAlgorithmString			string
versionAlgorithmCoding			Coding
name	Σ C	0..1	string	Name for this questionnaire (computer friendly)
title	Σ T	0..1	string	Name for this questionnaire (human friendly)
derivedFrom	Σ	0..*	canonical( Questionnaire)	Based on Questionnaire
status	?! Σ C	1..1	code	draft | active | retired | unknown Binding: PublicationStatus ( Required)
experimental	Σ	0..1	boolean	For testing purposes, not real usage
subjectType	Σ	0..*	code	Resource that can be subject of QuestionnaireResponse Binding: Resource Types ( Required)
date	Σ	0..1	dateTime	Date last changed
publisher	Σ T	0..1	string	Name of the publisher/steward (organization or individual)
contact	Σ	0..*	ContactDetail	Contact details for the publisher
description	Σ T	0..1	markdown	Natural language description of the questionnaire
useContext	Σ TU	0..*	UsageContext	The context that the content is intended to support
jurisdiction	Σ XD	0..*	CodeableConcept	Intended jurisdiction for questionnaire (if applicable) Binding: Jurisdiction ValueSet ( Extensible)
purpose	T	0..1	markdown	Why this questionnaire is defined
copyright	T	0..1	markdown	Use and/or publishing restrictions
copyrightLabel	T	0..1	string	Copyright holder and year(s)
approvalDate		0..1	date	When the questionnaire was approved by publisher
lastReviewDate		0..1	date	When the questionnaire was last reviewed by the publisher
effectivePeriod	Σ	0..1	Period	When the questionnaire is expected to be used
code	Σ	0..*	Coding	Concept that represents the overall questionnaire Binding: Questionnaire Question Codes ( Example)
item	C	0..*	BackboneElement	Questions and sections within the Questionnaire + Rule: Group items must have nested items when Questionanire is complete + Warning: Groups should have items + Rule: Display items cannot have child items + Rule: Display items cannot have a "code" asserted + Rule: A question cannot have both answerOption and answerValueSet + Rule: Only coding, decimal, integer, date, dateTime, time, string or quantity items can have answerOption or answerValueSet + Rule: Required and repeat aren't permitted for display items + Rule: Initial values can't be specified for groups or display items + Rule: Read-only can't be specified for "display" items + Rule: Maximum length can only be declared for simple question types + Rule: If one or more answerOption is present, initial cannot be present. Use answerOption.initialSelected instead + Rule: If there are more than one enableWhen, enableBehavior must be specified + Rule: Can only have multiple initial values for repeating items + Warning: Can only have answerConstraint if answerOption or answerValueSet are present. (This is a warning because extensions may serve the same purpose)
linkId	C	1..1	string	Unique id for item in questionnaire + Warning: Link ids should be 255 characters or less
definition		0..1	uri	ElementDefinition - details for the item
code	C	0..*	Coding	Corresponding concept for this item in a terminology Binding: Questionnaire Question Codes ( Example)
prefix		0..1	string	E.g. "1(a)", "2.5.3"
text	T	0..1	string	Primary text for the item
type	C	1..1	code	group | display | boolean | decimal | integer | date | dateTime + Binding: Questionnaire Item Type ( Required)
enableWhen	?! C	0..*	BackboneElement	Only allow data when + Rule: If the operator is 'exists', the value must be a boolean
question		1..1	string	The linkId of question that determines whether item is enabled/disabled
operator	C	1..1	code	exists | = | != | > | < | >= | <= Binding: Questionnaire Item Operator ( Required)
answer[x]	T C	1..1		Value for question comparison based on operator Binding: Questionnaire Answer Codes ( Example)
answerBoolean			boolean
answerDecimal			decimal
answerInteger			integer
answerDate			date
answerDateTime			dateTime
answerTime			time
answerString			string
answerCoding			Coding
answerQuantity			Quantity
answerReference			Reference( Any)
enableBehavior	C	0..1	code	all | any Binding: Enable When Behavior ( Required)
disabledDisplay		0..1	code	hidden | protected Binding: Questionnaire Item Disabled Display ( Required)
required	C	0..1	boolean	Whether the item must be included in data results
repeats	C	0..1	boolean	Whether the item may repeat
readOnly	C	0..1	boolean	Don't allow human editing
maxLength	C	0..1	integer	No more than these many characters
answerConstraint	C	0..1	code	optionsOnly | optionsOrType | optionsOrString Binding: Questionnaire answer constraints value set ( Required)
answerValueSet	C	0..1	canonical( ValueSet)	ValueSet containing permitted answers
answerOption	C	0..*	BackboneElement	Permitted answer
value[x]	T	1..1		Answer value Binding: Questionnaire Answer Codes ( Example)
valueInteger			integer
valueDate			date
valueTime			time
valueString			string
valueCoding			Coding
valueReference			Reference( Any)
initialSelected		0..1	boolean	Whether option is selected by default
initial	C	0..*	BackboneElement	Initial value(s) when item is first rendered
value[x]	T	1..1		Actual value for initializing the question Binding: Questionnaire Answer Codes ( Example)
valueBoolean			boolean
valueDecimal			decimal
valueInteger			integer
valueDate			date
valueDateTime			dateTime
valueTime			time
valueString			string
valueUri			uri
valueAttachment			Attachment
valueCoding			Coding
valueQuantity			Quantity
valueReference			Reference( Any)
item		0..*	see item	Nested questionnaire items
Documentation for this format