This page is part of the Healthcare Associated Infection Implementation Guide (v2.1.0: STU2) based on FHIR R4. This is the current published version. For a full list of available versions, see the Directory of published versions

• Content
• Detailed Descriptions
• Mappings

Resource Profile: Healthcare Associated Infection Population Summary Questionnaire

This profile represents a Healthcare Associated Infection Population Summary form as a FHIR Questionnaire. A Population Summary Report records summary data for a group, such as the patients in a particular ward, during a specified period.

Usage:

• Examples for this Resource Profile: HAI_questionnaire_opc_sdom_denom

Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

• Differential Table
• Key Elements Table
• Snapshot Table
• Statistics/References
• All

This structure is derived from Questionnaire

Name	Flags	Card.	Type	Description & Constraints
Questionnaire	S	0..*	Questionnaire	Healthcare Associated Infection Population Summary Questionnaire
language	S	1..1	code	Language of the resource content Required Pattern: en-US
text	S	0..1	Narrative	Text summary of the resource, for human interpretation
url	S	1..1	uri	Canonical identifier for this questionnaire, represented as a URI (globally unique)
identifier	S	1..1	Identifier	Globally unique identifier for the instance
title	S	1..1	string	Title of the HAI report.
subjectType	S	1..1	code	A Group resource is the subject of the related QuestionnaireResponse Fixed Value: Group
date	S	1..1	dateTime	Date last changed
publisher	S	1..1	string	Name of the publisher (organization or individual)
description	S	1..1	markdown	Description of the population summary questionnaire.
jurisdiction	S	1..1	CodeableConcept	Intended jurisdiction for questionnaire (if applicable) Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: urn:iso:std:iso:3166
code		1..1	code	Symbol in syntax defined by the system Fixed Value: US
Slices for code	S	2..2	Coding	Concept that represents the overall questionnaire Slice: Unordered, Open by value:$this
code:HAI	S	1..1	Coding	Concept that represents the overall questionnaire Required Pattern: At least the following
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 51897-7
display		1..1	string	Representation defined by the system Fixed Value: Healthcare Associated Infection report Document
code:populationSummaryReportType	S	1..1	Coding	Type of population summary report Binding: NHSNPopulationSummaryReportTypeCode(CDCNHSN) (required): Codes describing the type of population summary report.
item	S	1..*	BackboneElement	Items specific to the population summary questionnaire being modeled.
extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
linkId	S	1..1	string	Unique id for item in questionnaire
code	S	0..*	Coding	Corresponding concept for this item in a terminology
type	S	1..1	code	group | display | boolean | decimal | integer | date | dateTime +
enableWhen	S	0..*	BackboneElement	Only allow data when
required	S	0..1	boolean	Whether the item must be included in data results
repeats	S	0..1	boolean	Whether the item may repeat
answerOption	S	0..*	BackboneElement	Permitted answer
item	S	0..*		Nested questionnaire items
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet
Questionnaire.code:populationSummaryReportType	required	NHSNPopulationSummaryReportTypeCode(CDCNHSN)

Name	Flags	Card.	Type	Description & Constraints
Questionnaire	SC	0..*	Questionnaire	Healthcare Associated Infection Population Summary Questionnaire
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language	S	1..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding Required Pattern: en-US
text	S	0..1	Narrative	Text summary of the resource, for human interpretation
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
url	SΣ	1..1	uri	Canonical identifier for this questionnaire, represented as a URI (globally unique)
identifier	SΣ	1..1	Identifier	Globally unique identifier for the instance
title	SΣ	1..1	string	Title of the HAI report.
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
subjectType	SΣ	1..1	code	A Group resource is the subject of the related QuestionnaireResponse Binding: ResourceType (required): One of the resource types defined as part of this version of FHIR. Fixed Value: Group
date	SΣ	1..1	dateTime	Date last changed
publisher	SΣ	1..1	string	Name of the publisher (organization or individual)
description	S	1..1	markdown	Description of the population summary questionnaire.
jurisdiction	SΣ	1..1	CodeableConcept	Intended jurisdiction for questionnaire (if applicable) Binding: Jurisdiction ValueSet (extensible): Countries and regions within which this artifact is targeted for use. Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: urn:iso:std:iso:3166
code		1..1	code	Symbol in syntax defined by the system Fixed Value: US
Slices for code	SΣ	2..2	Coding	Concept that represents the overall questionnaire Slice: Unordered, Open by value:$this Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
code:HAI	SΣ	1..1	Coding	Concept that represents the overall questionnaire Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions. Required Pattern: At least the following
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 51897-7
display		1..1	string	Representation defined by the system Fixed Value: Healthcare Associated Infection report Document
code:populationSummaryReportType	SΣ	1..1	Coding	Type of population summary report Binding: NHSNPopulationSummaryReportTypeCode(CDCNHSN) (required): Codes describing the type of population summary report.
item	SC	1..*	BackboneElement	Items specific to the population summary questionnaire being modeled.
extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
linkId	S	1..1	string	Unique id for item in questionnaire
code	SC	0..*	Coding	Corresponding concept for this item in a terminology Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
type	S	1..1	code	group | display | boolean | decimal | integer | date | dateTime + Binding: QuestionnaireItemType (required): Distinguishes groups from questions and display text and indicates data type for questions.
enableWhen	?!SC	0..*	BackboneElement	Only allow data when
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
question		1..1	string	Question that determines whether item is enabled
operator		1..1	code	exists | = | != | > | < | >= | <= Binding: QuestionnaireItemOperator (required): The criteria by which a question is enabled.
answer[x]	C	1..1		Value for question comparison based on operator Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
answerBoolean			boolean
answerDecimal			decimal
answerInteger			integer
answerDate			date
answerDateTime			dateTime
answerTime			time
answerString			string
answerCoding			Coding
answerQuantity			Quantity
answerReference			Reference(Resource)
required	SC	0..1	boolean	Whether the item must be included in data results
repeats	SC	0..1	boolean	Whether the item may repeat
answerValueSet	C	0..1	canonical(ValueSet)	Valueset containing permitted answers
answerOption	SC	0..*	BackboneElement	Permitted answer
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
value[x]		1..1		Answer value Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
valueInteger			integer
valueDate			date
valueTime			time
valueString			string
valueCoding			Coding
valueReference			Reference(Resource)
initial	C	0..*	BackboneElement	Initial value(s) when item is first rendered
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
value[x]		1..1		Actual value for initializing the question Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
valueBoolean			boolean
valueDecimal			decimal
valueInteger			integer
valueDate			date
valueDateTime			dateTime
valueTime			time
valueString			string
valueUri			uri
valueAttachment			Attachment
valueCoding			Coding
valueQuantity			Quantity
valueReference			Reference(Resource)
item	SC	0..*	See item (Questionnaire)	Nested questionnaire items
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code
Questionnaire.language	preferred	Pattern: en-US Additional Bindings Purpose AllLanguages Max Binding
Questionnaire.status	required	PublicationStatus
Questionnaire.subjectType	required	Fixed Value: Group
Questionnaire.jurisdiction	extensible	Pattern: US
Questionnaire.code	example	QuestionnaireQuestionCodes (a valid code from LOINC)
Questionnaire.code:HAI	example	Pattern: LOINC code 51897-7("Healthcare Associated Infection report Document")
Questionnaire.code:populationSummaryReportType	required	NHSNPopulationSummaryReportTypeCode(CDCNHSN)
Questionnaire.item.code	example	QuestionnaireQuestionCodes (a valid code from LOINC)
Questionnaire.item.type	required	QuestionnaireItemType
Questionnaire.item.enableWhen.operator	required	QuestionnaireItemOperator
Questionnaire.item.enableWhen.answer[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)
Questionnaire.item.answerOption.value[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)
Questionnaire.item.initial.value[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)

Constraints

Id	Grade	Path(s)	Details	Requirements
dom-2	error	Questionnaire	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	Questionnaire	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource : contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Questionnaire	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated : contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Questionnaire	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	Questionnaire	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
que-0	warning	Questionnaire	Name should be usable as an identifier for the module by machine processing applications such as code generation : name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
que-1	error	Questionnaire.item	Group items must have nested items, display items cannot have nested items : (type='group' implies item.empty().not()) and (type.trace('type')='display' implies item.trace('item').empty())
que-2	error	Questionnaire	The link ids for groups and questions must be unique within the questionnaire : descendants().linkId.isDistinct()
que-3	error	Questionnaire.item	Display items cannot have a "code" asserted : type!='display' or code.empty()
que-4	error	Questionnaire.item	A question cannot have both answerOption and answerValueSet : answerOption.empty() or answerValueSet.empty()
que-5	error	Questionnaire.item	Only 'choice' and 'open-choice' items can have answerValueSet : (type ='choice' or type = 'open-choice' or type = 'decimal' or type = 'integer' or type = 'date' or type = 'dateTime' or type = 'time' or type = 'string' or type = 'quantity') or (answerValueSet.empty() and answerOption.empty())
que-6	error	Questionnaire.item	Required and repeat aren't permitted for display items : type!='display' or (required.empty() and repeats.empty())
que-7	error	Questionnaire.item.enableWhen	If the operator is 'exists', the value must be a boolean : operator = 'exists' implies (answer is Boolean)
que-8	error	Questionnaire.item	Initial values can't be specified for groups or display items : (type!='group' and type!='display') or initial.empty()
que-9	error	Questionnaire.item	Read-only can't be specified for "display" items : type!='display' or readOnly.empty()
que-10	error	Questionnaire.item	Maximum length can only be declared for simple question types : (type in ('boolean' | 'decimal' | 'integer' | 'string' | 'text' | 'url' | 'open-choice')) or maxLength.empty()
que-11	error	Questionnaire.item	If one or more answerOption is present, initial[x] must be missing : answerOption.empty() or initial.empty()
que-12	error	Questionnaire.item	If there are more than one enableWhen, enableBehavior must be specified : enableWhen.count() > 2 implies enableBehavior.exists()
que-13	error	Questionnaire.item	Can only have multiple initial values for repeating items : repeats=true or initial.count() <= 1

Name	Flags	Card.	Type	Description & Constraints
Questionnaire	SC	0..*	Questionnaire	Healthcare Associated Infection Population Summary Questionnaire
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language	S	1..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding Required Pattern: en-US
text	S	0..1	Narrative	Text summary of the resource, for human interpretation
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
url	SΣ	1..1	uri	Canonical identifier for this questionnaire, represented as a URI (globally unique)
identifier	SΣ	1..1	Identifier	Globally unique identifier for the instance
version	Σ	0..1	string	Business version of the questionnaire
name	ΣC	0..1	string	Name for this questionnaire (computer friendly)
title	SΣ	1..1	string	Title of the HAI report.
derivedFrom		0..*	canonical(Questionnaire)	Instantiates protocol or definition
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
experimental	Σ	0..1	boolean	For testing purposes, not real usage
subjectType	SΣ	1..1	code	A Group resource is the subject of the related QuestionnaireResponse Binding: ResourceType (required): One of the resource types defined as part of this version of FHIR. Fixed Value: Group
date	SΣ	1..1	dateTime	Date last changed
publisher	SΣ	1..1	string	Name of the publisher (organization or individual)
contact	Σ	0..*	ContactDetail	Contact details for the publisher
description	S	1..1	markdown	Description of the population summary questionnaire.
useContext	Σ	0..*	UsageContext	The context that the content is intended to support
jurisdiction	SΣ	1..1	CodeableConcept	Intended jurisdiction for questionnaire (if applicable) Binding: Jurisdiction ValueSet (extensible): Countries and regions within which this artifact is targeted for use. Required Pattern: At least the following
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: urn:iso:std:iso:3166
version		0..1	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: US
display		0..1	string	Representation defined by the system
userSelected		0..1	boolean	If this coding was chosen directly by the user
text		0..1	string	Plain text representation of the concept
purpose		0..1	markdown	Why this questionnaire is defined
copyright		0..1	markdown	Use and/or publishing restrictions
approvalDate		0..1	date	When the questionnaire was approved by publisher
lastReviewDate		0..1	date	When the questionnaire was last reviewed
effectivePeriod	Σ	0..1	Period	When the questionnaire is expected to be used
Slices for code	SΣ	2..2	Coding	Concept that represents the overall questionnaire Slice: Unordered, Open by value:$this Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
code:HAI	SΣ	1..1	Coding	Concept that represents the overall questionnaire Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions. Required Pattern: At least the following
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..1	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 51897-7
display		1..1	string	Representation defined by the system Fixed Value: Healthcare Associated Infection report Document
userSelected		0..1	boolean	If this coding was chosen directly by the user
code:populationSummaryReportType	SΣ	1..1	Coding	Type of population summary report Binding: NHSNPopulationSummaryReportTypeCode(CDCNHSN) (required): Codes describing the type of population summary report.
item	SC	1..*	BackboneElement	Items specific to the population summary questionnaire being modeled.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
linkId	S	1..1	string	Unique id for item in questionnaire
definition		0..1	uri	ElementDefinition - details for the item
code	SC	0..*	Coding	Corresponding concept for this item in a terminology Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
prefix		0..1	string	E.g. "1(a)", "2.5.3"
text		0..1	string	Primary text for the item
type	S	1..1	code	group | display | boolean | decimal | integer | date | dateTime + Binding: QuestionnaireItemType (required): Distinguishes groups from questions and display text and indicates data type for questions.
enableWhen	?!SC	0..*	BackboneElement	Only allow data when
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
question		1..1	string	Question that determines whether item is enabled
operator		1..1	code	exists | = | != | > | < | >= | <= Binding: QuestionnaireItemOperator (required): The criteria by which a question is enabled.
answer[x]	C	1..1		Value for question comparison based on operator Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
answerBoolean			boolean
answerDecimal			decimal
answerInteger			integer
answerDate			date
answerDateTime			dateTime
answerTime			time
answerString			string
answerCoding			Coding
answerQuantity			Quantity
answerReference			Reference(Resource)
enableBehavior	C	0..1	code	all | any Binding: EnableWhenBehavior (required): Controls how multiple enableWhen values are interpreted - whether all or any must be true.
required	SC	0..1	boolean	Whether the item must be included in data results
repeats	SC	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 this many characters
answerValueSet	C	0..1	canonical(ValueSet)	Valueset containing permitted answers
answerOption	SC	0..*	BackboneElement	Permitted answer
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
value[x]		1..1		Answer value Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
valueInteger			integer
valueDate			date
valueTime			time
valueString			string
valueCoding			Coding
valueReference			Reference(Resource)
initialSelected		0..1	boolean	Whether option is selected by default
initial	C	0..*	BackboneElement	Initial value(s) when item is first rendered
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
value[x]		1..1		Actual value for initializing the question Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
valueBoolean			boolean
valueDecimal			decimal
valueInteger			integer
valueDate			date
valueDateTime			dateTime
valueTime			time
valueString			string
valueUri			uri
valueAttachment			Attachment
valueCoding			Coding
valueQuantity			Quantity
valueReference			Reference(Resource)
item	SC	0..*	See item (Questionnaire)	Nested questionnaire items
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code
Questionnaire.language	preferred	Pattern: en-US Additional Bindings Purpose AllLanguages Max Binding
Questionnaire.status	required	PublicationStatus
Questionnaire.subjectType	required	Fixed Value: Group
Questionnaire.jurisdiction	extensible	Pattern: US
Questionnaire.code	example	QuestionnaireQuestionCodes (a valid code from LOINC)
Questionnaire.code:HAI	example	Pattern: LOINC code 51897-7("Healthcare Associated Infection report Document")
Questionnaire.code:populationSummaryReportType	required	NHSNPopulationSummaryReportTypeCode(CDCNHSN)
Questionnaire.item.code	example	QuestionnaireQuestionCodes (a valid code from LOINC)
Questionnaire.item.type	required	QuestionnaireItemType
Questionnaire.item.enableWhen.operator	required	QuestionnaireItemOperator
Questionnaire.item.enableWhen.answer[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)
Questionnaire.item.enableBehavior	required	EnableWhenBehavior
Questionnaire.item.answerOption.value[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)
Questionnaire.item.initial.value[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)

Constraints

Id	Grade	Path(s)	Details	Requirements
dom-2	error	Questionnaire	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	Questionnaire	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource : contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Questionnaire	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated : contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Questionnaire	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	Questionnaire	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
que-0	warning	Questionnaire	Name should be usable as an identifier for the module by machine processing applications such as code generation : name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
que-1	error	Questionnaire.item	Group items must have nested items, display items cannot have nested items : (type='group' implies item.empty().not()) and (type.trace('type')='display' implies item.trace('item').empty())
que-2	error	Questionnaire	The link ids for groups and questions must be unique within the questionnaire : descendants().linkId.isDistinct()
que-3	error	Questionnaire.item	Display items cannot have a "code" asserted : type!='display' or code.empty()
que-4	error	Questionnaire.item	A question cannot have both answerOption and answerValueSet : answerOption.empty() or answerValueSet.empty()
que-5	error	Questionnaire.item	Only 'choice' and 'open-choice' items can have answerValueSet : (type ='choice' or type = 'open-choice' or type = 'decimal' or type = 'integer' or type = 'date' or type = 'dateTime' or type = 'time' or type = 'string' or type = 'quantity') or (answerValueSet.empty() and answerOption.empty())
que-6	error	Questionnaire.item	Required and repeat aren't permitted for display items : type!='display' or (required.empty() and repeats.empty())
que-7	error	Questionnaire.item.enableWhen	If the operator is 'exists', the value must be a boolean : operator = 'exists' implies (answer is Boolean)
que-8	error	Questionnaire.item	Initial values can't be specified for groups or display items : (type!='group' and type!='display') or initial.empty()
que-9	error	Questionnaire.item	Read-only can't be specified for "display" items : type!='display' or readOnly.empty()
que-10	error	Questionnaire.item	Maximum length can only be declared for simple question types : (type in ('boolean' | 'decimal' | 'integer' | 'string' | 'text' | 'url' | 'open-choice')) or maxLength.empty()
que-11	error	Questionnaire.item	If one or more answerOption is present, initial[x] must be missing : answerOption.empty() or initial.empty()
que-12	error	Questionnaire.item	If there are more than one enableWhen, enableBehavior must be specified : enableWhen.count() > 2 implies enableBehavior.exists()
que-13	error	Questionnaire.item	Can only have multiple initial values for repeating items : repeats=true or initial.count() <= 1

This structure is derived from Questionnaire

Summary

Mandatory: 12 elements
Must-Support: 22 elements
Fixed Value: 1 element

Slices

This structure defines the following Slices:

• The element Questionnaire.code is sliced based on the value of value:$this

Differential View

This structure is derived from Questionnaire

Name	Flags	Card.	Type	Description & Constraints
Questionnaire	S	0..*	Questionnaire	Healthcare Associated Infection Population Summary Questionnaire
language	S	1..1	code	Language of the resource content Required Pattern: en-US
text	S	0..1	Narrative	Text summary of the resource, for human interpretation
url	S	1..1	uri	Canonical identifier for this questionnaire, represented as a URI (globally unique)
identifier	S	1..1	Identifier	Globally unique identifier for the instance
title	S	1..1	string	Title of the HAI report.
subjectType	S	1..1	code	A Group resource is the subject of the related QuestionnaireResponse Fixed Value: Group
date	S	1..1	dateTime	Date last changed
publisher	S	1..1	string	Name of the publisher (organization or individual)
description	S	1..1	markdown	Description of the population summary questionnaire.
jurisdiction	S	1..1	CodeableConcept	Intended jurisdiction for questionnaire (if applicable) Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: urn:iso:std:iso:3166
code		1..1	code	Symbol in syntax defined by the system Fixed Value: US
Slices for code	S	2..2	Coding	Concept that represents the overall questionnaire Slice: Unordered, Open by value:$this
code:HAI	S	1..1	Coding	Concept that represents the overall questionnaire Required Pattern: At least the following
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 51897-7
display		1..1	string	Representation defined by the system Fixed Value: Healthcare Associated Infection report Document
code:populationSummaryReportType	S	1..1	Coding	Type of population summary report Binding: NHSNPopulationSummaryReportTypeCode(CDCNHSN) (required): Codes describing the type of population summary report.
item	S	1..*	BackboneElement	Items specific to the population summary questionnaire being modeled.
extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
linkId	S	1..1	string	Unique id for item in questionnaire
code	S	0..*	Coding	Corresponding concept for this item in a terminology
type	S	1..1	code	group | display | boolean | decimal | integer | date | dateTime +
enableWhen	S	0..*	BackboneElement	Only allow data when
required	S	0..1	boolean	Whether the item must be included in data results
repeats	S	0..1	boolean	Whether the item may repeat
answerOption	S	0..*	BackboneElement	Permitted answer
item	S	0..*		Nested questionnaire items
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet
Questionnaire.code:populationSummaryReportType	required	NHSNPopulationSummaryReportTypeCode(CDCNHSN)

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
Questionnaire	SC	0..*	Questionnaire	Healthcare Associated Infection Population Summary Questionnaire
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language	S	1..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding Required Pattern: en-US
text	S	0..1	Narrative	Text summary of the resource, for human interpretation
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
url	SΣ	1..1	uri	Canonical identifier for this questionnaire, represented as a URI (globally unique)
identifier	SΣ	1..1	Identifier	Globally unique identifier for the instance
title	SΣ	1..1	string	Title of the HAI report.
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
subjectType	SΣ	1..1	code	A Group resource is the subject of the related QuestionnaireResponse Binding: ResourceType (required): One of the resource types defined as part of this version of FHIR. Fixed Value: Group
date	SΣ	1..1	dateTime	Date last changed
publisher	SΣ	1..1	string	Name of the publisher (organization or individual)
description	S	1..1	markdown	Description of the population summary questionnaire.
jurisdiction	SΣ	1..1	CodeableConcept	Intended jurisdiction for questionnaire (if applicable) Binding: Jurisdiction ValueSet (extensible): Countries and regions within which this artifact is targeted for use. Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: urn:iso:std:iso:3166
code		1..1	code	Symbol in syntax defined by the system Fixed Value: US
Slices for code	SΣ	2..2	Coding	Concept that represents the overall questionnaire Slice: Unordered, Open by value:$this Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
code:HAI	SΣ	1..1	Coding	Concept that represents the overall questionnaire Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions. Required Pattern: At least the following
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 51897-7
display		1..1	string	Representation defined by the system Fixed Value: Healthcare Associated Infection report Document
code:populationSummaryReportType	SΣ	1..1	Coding	Type of population summary report Binding: NHSNPopulationSummaryReportTypeCode(CDCNHSN) (required): Codes describing the type of population summary report.
item	SC	1..*	BackboneElement	Items specific to the population summary questionnaire being modeled.
extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
linkId	S	1..1	string	Unique id for item in questionnaire
code	SC	0..*	Coding	Corresponding concept for this item in a terminology Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
type	S	1..1	code	group | display | boolean | decimal | integer | date | dateTime + Binding: QuestionnaireItemType (required): Distinguishes groups from questions and display text and indicates data type for questions.
enableWhen	?!SC	0..*	BackboneElement	Only allow data when
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
question		1..1	string	Question that determines whether item is enabled
operator		1..1	code	exists | = | != | > | < | >= | <= Binding: QuestionnaireItemOperator (required): The criteria by which a question is enabled.
answer[x]	C	1..1		Value for question comparison based on operator Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
answerBoolean			boolean
answerDecimal			decimal
answerInteger			integer
answerDate			date
answerDateTime			dateTime
answerTime			time
answerString			string
answerCoding			Coding
answerQuantity			Quantity
answerReference			Reference(Resource)
required	SC	0..1	boolean	Whether the item must be included in data results
repeats	SC	0..1	boolean	Whether the item may repeat
answerValueSet	C	0..1	canonical(ValueSet)	Valueset containing permitted answers
answerOption	SC	0..*	BackboneElement	Permitted answer
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
value[x]		1..1		Answer value Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
valueInteger			integer
valueDate			date
valueTime			time
valueString			string
valueCoding			Coding
valueReference			Reference(Resource)
initial	C	0..*	BackboneElement	Initial value(s) when item is first rendered
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
value[x]		1..1		Actual value for initializing the question Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
valueBoolean			boolean
valueDecimal			decimal
valueInteger			integer
valueDate			date
valueDateTime			dateTime
valueTime			time
valueString			string
valueUri			uri
valueAttachment			Attachment
valueCoding			Coding
valueQuantity			Quantity
valueReference			Reference(Resource)
item	SC	0..*	See item (Questionnaire)	Nested questionnaire items
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code
Questionnaire.language	preferred	Pattern: en-US Additional Bindings Purpose AllLanguages Max Binding
Questionnaire.status	required	PublicationStatus
Questionnaire.subjectType	required	Fixed Value: Group
Questionnaire.jurisdiction	extensible	Pattern: US
Questionnaire.code	example	QuestionnaireQuestionCodes (a valid code from LOINC)
Questionnaire.code:HAI	example	Pattern: LOINC code 51897-7("Healthcare Associated Infection report Document")
Questionnaire.code:populationSummaryReportType	required	NHSNPopulationSummaryReportTypeCode(CDCNHSN)
Questionnaire.item.code	example	QuestionnaireQuestionCodes (a valid code from LOINC)
Questionnaire.item.type	required	QuestionnaireItemType
Questionnaire.item.enableWhen.operator	required	QuestionnaireItemOperator
Questionnaire.item.enableWhen.answer[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)
Questionnaire.item.answerOption.value[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)
Questionnaire.item.initial.value[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)

Constraints

Id	Grade	Path(s)	Details	Requirements
dom-2	error	Questionnaire	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	Questionnaire	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource : contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Questionnaire	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated : contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Questionnaire	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	Questionnaire	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
que-0	warning	Questionnaire	Name should be usable as an identifier for the module by machine processing applications such as code generation : name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
que-1	error	Questionnaire.item	Group items must have nested items, display items cannot have nested items : (type='group' implies item.empty().not()) and (type.trace('type')='display' implies item.trace('item').empty())
que-2	error	Questionnaire	The link ids for groups and questions must be unique within the questionnaire : descendants().linkId.isDistinct()
que-3	error	Questionnaire.item	Display items cannot have a "code" asserted : type!='display' or code.empty()
que-4	error	Questionnaire.item	A question cannot have both answerOption and answerValueSet : answerOption.empty() or answerValueSet.empty()
que-5	error	Questionnaire.item	Only 'choice' and 'open-choice' items can have answerValueSet : (type ='choice' or type = 'open-choice' or type = 'decimal' or type = 'integer' or type = 'date' or type = 'dateTime' or type = 'time' or type = 'string' or type = 'quantity') or (answerValueSet.empty() and answerOption.empty())
que-6	error	Questionnaire.item	Required and repeat aren't permitted for display items : type!='display' or (required.empty() and repeats.empty())
que-7	error	Questionnaire.item.enableWhen	If the operator is 'exists', the value must be a boolean : operator = 'exists' implies (answer is Boolean)
que-8	error	Questionnaire.item	Initial values can't be specified for groups or display items : (type!='group' and type!='display') or initial.empty()
que-9	error	Questionnaire.item	Read-only can't be specified for "display" items : type!='display' or readOnly.empty()
que-10	error	Questionnaire.item	Maximum length can only be declared for simple question types : (type in ('boolean' | 'decimal' | 'integer' | 'string' | 'text' | 'url' | 'open-choice')) or maxLength.empty()
que-11	error	Questionnaire.item	If one or more answerOption is present, initial[x] must be missing : answerOption.empty() or initial.empty()
que-12	error	Questionnaire.item	If there are more than one enableWhen, enableBehavior must be specified : enableWhen.count() > 2 implies enableBehavior.exists()
que-13	error	Questionnaire.item	Can only have multiple initial values for repeating items : repeats=true or initial.count() <= 1

Snapshot View

Name	Flags	Card.	Type	Description & Constraints
Questionnaire	SC	0..*	Questionnaire	Healthcare Associated Infection Population Summary Questionnaire
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language	S	1..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding Required Pattern: en-US
text	S	0..1	Narrative	Text summary of the resource, for human interpretation
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
url	SΣ	1..1	uri	Canonical identifier for this questionnaire, represented as a URI (globally unique)
identifier	SΣ	1..1	Identifier	Globally unique identifier for the instance
version	Σ	0..1	string	Business version of the questionnaire
name	ΣC	0..1	string	Name for this questionnaire (computer friendly)
title	SΣ	1..1	string	Title of the HAI report.
derivedFrom		0..*	canonical(Questionnaire)	Instantiates protocol or definition
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
experimental	Σ	0..1	boolean	For testing purposes, not real usage
subjectType	SΣ	1..1	code	A Group resource is the subject of the related QuestionnaireResponse Binding: ResourceType (required): One of the resource types defined as part of this version of FHIR. Fixed Value: Group
date	SΣ	1..1	dateTime	Date last changed
publisher	SΣ	1..1	string	Name of the publisher (organization or individual)
contact	Σ	0..*	ContactDetail	Contact details for the publisher
description	S	1..1	markdown	Description of the population summary questionnaire.
useContext	Σ	0..*	UsageContext	The context that the content is intended to support
jurisdiction	SΣ	1..1	CodeableConcept	Intended jurisdiction for questionnaire (if applicable) Binding: Jurisdiction ValueSet (extensible): Countries and regions within which this artifact is targeted for use. Required Pattern: At least the following
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: urn:iso:std:iso:3166
version		0..1	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: US
display		0..1	string	Representation defined by the system
userSelected		0..1	boolean	If this coding was chosen directly by the user
text		0..1	string	Plain text representation of the concept
purpose		0..1	markdown	Why this questionnaire is defined
copyright		0..1	markdown	Use and/or publishing restrictions
approvalDate		0..1	date	When the questionnaire was approved by publisher
lastReviewDate		0..1	date	When the questionnaire was last reviewed
effectivePeriod	Σ	0..1	Period	When the questionnaire is expected to be used
Slices for code	SΣ	2..2	Coding	Concept that represents the overall questionnaire Slice: Unordered, Open by value:$this Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
code:HAI	SΣ	1..1	Coding	Concept that represents the overall questionnaire Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions. Required Pattern: At least the following
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..1	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 51897-7
display		1..1	string	Representation defined by the system Fixed Value: Healthcare Associated Infection report Document
userSelected		0..1	boolean	If this coding was chosen directly by the user
code:populationSummaryReportType	SΣ	1..1	Coding	Type of population summary report Binding: NHSNPopulationSummaryReportTypeCode(CDCNHSN) (required): Codes describing the type of population summary report.
item	SC	1..*	BackboneElement	Items specific to the population summary questionnaire being modeled.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
linkId	S	1..1	string	Unique id for item in questionnaire
definition		0..1	uri	ElementDefinition - details for the item
code	SC	0..*	Coding	Corresponding concept for this item in a terminology Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
prefix		0..1	string	E.g. "1(a)", "2.5.3"
text		0..1	string	Primary text for the item
type	S	1..1	code	group | display | boolean | decimal | integer | date | dateTime + Binding: QuestionnaireItemType (required): Distinguishes groups from questions and display text and indicates data type for questions.
enableWhen	?!SC	0..*	BackboneElement	Only allow data when
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
question		1..1	string	Question that determines whether item is enabled
operator		1..1	code	exists | = | != | > | < | >= | <= Binding: QuestionnaireItemOperator (required): The criteria by which a question is enabled.
answer[x]	C	1..1		Value for question comparison based on operator Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
answerBoolean			boolean
answerDecimal			decimal
answerInteger			integer
answerDate			date
answerDateTime			dateTime
answerTime			time
answerString			string
answerCoding			Coding
answerQuantity			Quantity
answerReference			Reference(Resource)
enableBehavior	C	0..1	code	all | any Binding: EnableWhenBehavior (required): Controls how multiple enableWhen values are interpreted - whether all or any must be true.
required	SC	0..1	boolean	Whether the item must be included in data results
repeats	SC	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 this many characters
answerValueSet	C	0..1	canonical(ValueSet)	Valueset containing permitted answers
answerOption	SC	0..*	BackboneElement	Permitted answer
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
value[x]		1..1		Answer value Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
valueInteger			integer
valueDate			date
valueTime			time
valueString			string
valueCoding			Coding
valueReference			Reference(Resource)
initialSelected		0..1	boolean	Whether option is selected by default
initial	C	0..*	BackboneElement	Initial value(s) when item is first rendered
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
value[x]		1..1		Actual value for initializing the question Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
valueBoolean			boolean
valueDecimal			decimal
valueInteger			integer
valueDate			date
valueDateTime			dateTime
valueTime			time
valueString			string
valueUri			uri
valueAttachment			Attachment
valueCoding			Coding
valueQuantity			Quantity
valueReference			Reference(Resource)
item	SC	0..*	See item (Questionnaire)	Nested questionnaire items
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code
Questionnaire.language	preferred	Pattern: en-US Additional Bindings Purpose AllLanguages Max Binding
Questionnaire.status	required	PublicationStatus
Questionnaire.subjectType	required	Fixed Value: Group
Questionnaire.jurisdiction	extensible	Pattern: US
Questionnaire.code	example	QuestionnaireQuestionCodes (a valid code from LOINC)
Questionnaire.code:HAI	example	Pattern: LOINC code 51897-7("Healthcare Associated Infection report Document")
Questionnaire.code:populationSummaryReportType	required	NHSNPopulationSummaryReportTypeCode(CDCNHSN)
Questionnaire.item.code	example	QuestionnaireQuestionCodes (a valid code from LOINC)
Questionnaire.item.type	required	QuestionnaireItemType
Questionnaire.item.enableWhen.operator	required	QuestionnaireItemOperator
Questionnaire.item.enableWhen.answer[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)
Questionnaire.item.enableBehavior	required	EnableWhenBehavior
Questionnaire.item.answerOption.value[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)
Questionnaire.item.initial.value[x]	example	QuestionnaireAnswerCodes (a valid code from SNOMED CT)

Constraints

Id	Grade	Path(s)	Details	Requirements
dom-2	error	Questionnaire	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	Questionnaire	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource : contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Questionnaire	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated : contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Questionnaire	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	Questionnaire	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
que-0	warning	Questionnaire	Name should be usable as an identifier for the module by machine processing applications such as code generation : name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
que-1	error	Questionnaire.item	Group items must have nested items, display items cannot have nested items : (type='group' implies item.empty().not()) and (type.trace('type')='display' implies item.trace('item').empty())
que-2	error	Questionnaire	The link ids for groups and questions must be unique within the questionnaire : descendants().linkId.isDistinct()
que-3	error	Questionnaire.item	Display items cannot have a "code" asserted : type!='display' or code.empty()
que-4	error	Questionnaire.item	A question cannot have both answerOption and answerValueSet : answerOption.empty() or answerValueSet.empty()
que-5	error	Questionnaire.item	Only 'choice' and 'open-choice' items can have answerValueSet : (type ='choice' or type = 'open-choice' or type = 'decimal' or type = 'integer' or type = 'date' or type = 'dateTime' or type = 'time' or type = 'string' or type = 'quantity') or (answerValueSet.empty() and answerOption.empty())
que-6	error	Questionnaire.item	Required and repeat aren't permitted for display items : type!='display' or (required.empty() and repeats.empty())
que-7	error	Questionnaire.item.enableWhen	If the operator is 'exists', the value must be a boolean : operator = 'exists' implies (answer is Boolean)
que-8	error	Questionnaire.item	Initial values can't be specified for groups or display items : (type!='group' and type!='display') or initial.empty()
que-9	error	Questionnaire.item	Read-only can't be specified for "display" items : type!='display' or readOnly.empty()
que-10	error	Questionnaire.item	Maximum length can only be declared for simple question types : (type in ('boolean' | 'decimal' | 'integer' | 'string' | 'text' | 'url' | 'open-choice')) or maxLength.empty()
que-11	error	Questionnaire.item	If one or more answerOption is present, initial[x] must be missing : answerOption.empty() or initial.empty()
que-12	error	Questionnaire.item	If there are more than one enableWhen, enableBehavior must be specified : enableWhen.count() > 2 implies enableBehavior.exists()
que-13	error	Questionnaire.item	Can only have multiple initial values for repeating items : repeats=true or initial.count() <= 1

This structure is derived from Questionnaire

Summary

Mandatory: 12 elements
Must-Support: 22 elements
Fixed Value: 1 element

Slices

This structure defines the following Slices:

• The element Questionnaire.code is sliced based on the value of value:$this