NHSN Healthcare Associated Infection (HAI) Reports Long Term Care Facilities
1.1.0 - STU 1.1 United States of America flag

NHSN Healthcare Associated Infection (HAI) Reports Long Term Care Facilities, published by HL7 Public Health Work Group (http://www.hl7.org/Special/committees/pher/index.cfm). This is not an authorized publication; it is the continuous build for version 1.1.0). This version is based on the current content of https://github.com/HL7/HAI-LTCF/ and changes regularly. See the Directory of published versions

Resource Profile: HaiLtcSinglePersonReportQuestionnaireResponse - Detailed Descriptions

Draft as of 2023-04-19

Definitions for the hai-ltc-single-person-report-questionnaireresponse resource profile.

Guidance on how to interpret the contents of this table can be found here.

1. QuestionnaireResponse
Definition

This profile represents a response to the Healthcare Associated Infection Single-Person Report Questionnaire as a FHIR QuestionnaireResponse profile.

A structured set of questions and their answers. The questions are ordered and grouped into coherent subsets, corresponding to the structure of the grouping of the questionnaire being responded to.

Must Supporttrue
2. QuestionnaireResponse.id
Control10..1
3. QuestionnaireResponse.text
Control10..1
Must Supporttrue
4. QuestionnaireResponse.identifier
NoteThis is a business identifier, not a resource identifier (see discussion)
Control10..1
Must Supporttrue
5. QuestionnaireResponse.questionnaire
Control10..1
Typecanonical(HaiLtcSinglePersonReportQuestionnaire|Questionnaire)
Must Supporttrue
6. QuestionnaireResponse.status
Must Supporttrue
Pattern Valuecompleted
7. QuestionnaireResponse.subject
Definition

In a single-person report the patient is the subject of the questionnaire response.

The subject of the questionnaire response. This could be a patient, organization, practitioner, device, etc. This is who/what the answers apply to, but is not necessarily the source of information.

Control10..1
TypeReference(USCorePatientProfile|Resource)
8. QuestionnaireResponse.authored
Must Supporttrue
9. QuestionnaireResponse.author
Definition

In a single-person report, the author may be software (US Core Device) or may be a person in the role of infection control professional (ICP) (US Core Practitioner).

Person who received the answers to the questions in the QuestionnaireResponse and recorded them in the system.

Control10..1
TypeReference(Device|USCorePractitionerProfile|Practitioner|PractitionerRole|Patient|RelatedPerson|Organization)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
10. QuestionnaireResponse.item
Definition

A questionnaire item

A group or question item from the original questionnaire for which answers are provided.

Control10..*
Must Supporttrue
11. QuestionnaireResponse.item.text
Definition

Text description of the questionnaire item

Text that is displayed above the contents of the group or as the text of the question being answered.

Must Supporttrue
12. QuestionnaireResponse.item.answer
Definition

The answer to the questionnaire question (item)

The respondent's answer(s) to the question.

Must Supporttrue
13. QuestionnaireResponse.item.item
Definition

A nested questionnaire item (contained in a group)

Questions or sub-groups nested beneath a question or group.

14. QuestionnaireResponse.item.item.text
Definition

Text description of the questionnaire item

Control0..?
Must Supporttrue
15. QuestionnaireResponse.item.item.answer
Definition

The answer to the questionnaire question (item)

Control0..?
Must Supporttrue

Guidance on how to interpret the contents of this table can be found here.

1. QuestionnaireResponse
Definition

This profile represents a response to the Healthcare Associated Infection Single-Person Report Questionnaire as a FHIR QuestionnaireResponse profile.

A structured set of questions and their answers. The questions are ordered and grouped into coherent subsets, corresponding to the structure of the grouping of the questionnaire being responded to.

Control0..*
Must Supporttrue
Summaryfalse
Alternate NamesForm, QuestionnaireAnswers
Comments

The QuestionnaireResponse contains enough information about the questions asked and their organization that it can be interpreted somewhat independently from the Questionnaire it is based on. I.e. You don't need access to the Questionnaire in order to extract basic information from a QuestionnaireResponse.

InvariantsDefined on this element
dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (: contained.contained.empty())
dom-3: 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: 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: If a resource is contained in another resource, it SHALL NOT have a security label (: contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (: text.`div`.exists())
2. QuestionnaireResponse.id
Definition

The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

Control10..1
Typeidstring
Summarytrue
Comments

The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

3. QuestionnaireResponse.implicitRules
Definition

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

Control0..1
Typeuri
Is Modifiertrue
Summarytrue
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
4. QuestionnaireResponse.text
Definition

A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

Control10..1
TypeNarrative
Must Supporttrue
Summaryfalse
Alternate Namesnarrative, html, xhtml, display
Comments

Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
5. QuestionnaireResponse.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

Control0..*
TypeExtension
Is Modifiertrue
Summaryfalse
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
6. QuestionnaireResponse.identifier
Definition

A business identifier assigned to a particular completed (or partially completed) questionnaire.

NoteThis is a business identifier, not a resource identifier (see discussion)
Control10..1
TypeIdentifier
Must Supporttrue
Summarytrue
Requirements

Used for tracking, registration and other business purposes.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
7. QuestionnaireResponse.questionnaire
Definition

The Questionnaire that defines and organizes the questions for which answers are being provided.

Control10..1
Typecanonical(HaiLtcSinglePersonReportQuestionnaire|Questionnaire)
Must Supporttrue
Summarytrue
Requirements

Needed to allow editing of the questionnaire response in a manner that enforces the constraints of the original form.

Alternate NamesForm
Comments

If a QuestionnaireResponse references a Questionnaire, then the QuestionnaireResponse structure must be consistent with the Questionnaire (i.e. questions must be organized into the same groups, nested questions must still be nested, etc.).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
8. QuestionnaireResponse.status
Definition

The position of the questionnaire response within its overall lifecycle.

Control1..1
BindingThe codes SHALL be taken from QuestionnaireResponseStatus

Lifecycle status of the questionnaire response.

Typecode
Is Modifiertrue
Must Supporttrue
Summarytrue
Requirements

The information on Questionnaire resources may possibly be gathered during multiple sessions and altered after considered being finished.

Comments

This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

Pattern Valuecompleted
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
9. QuestionnaireResponse.subject
Definition

In a single-person report the patient is the subject of the questionnaire response.

The subject of the questionnaire response. This could be a patient, organization, practitioner, device, etc. This is who/what the answers apply to, but is not necessarily the source of information.

Control10..1
TypeReference(USCorePatientProfile|Resource)
Summarytrue
Requirements

Allows linking the answers to the individual the answers describe. May also affect access control.

Alternate NamesPatient, Focus
Comments

If the Questionnaire declared a subjectType, the resource pointed to by this element must be an instance of one of the listed types.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
10. QuestionnaireResponse.authored
Definition

The date and/or time that this set of answers were last changed.

Control0..1
TypedateTime
Must Supporttrue
Summarytrue
Requirements

Clinicians need to be able to check the date that the information in the questionnaire was collected, to derive the context of the answers.

Alternate NamesDate Created, Date published, Date Issued, Date updated
Comments

May be different from the lastUpdateTime of the resource itself, because that reflects when the data was known to the server, not when the data was captured.

This element is optional to allow for systems that might not know the value, however it SHOULD be populated if possible.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
11. QuestionnaireResponse.author
Definition

In a single-person report, the author may be software (US Core Device) or may be a person in the role of infection control professional (ICP) (US Core Practitioner).

Person who received the answers to the questions in the QuestionnaireResponse and recorded them in the system.

Control10..1
TypeReference(Device|USCorePractitionerProfile|Practitioner|PractitionerRole|Patient|RelatedPerson|Organization)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
Requirements

Need to know who interpreted the subject's answers to the questions in the questionnaire, and selected the appropriate options for answers.

Alternate NamesLaboratory, Service, Practitioner, Department, Company, Performer
Comments

Mapping a subject's answers to multiple choice options and determining what to put in the textual answer is a matter of interpretation. Authoring by device would indicate that some portion of the questionnaire had been auto-populated.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
12. QuestionnaireResponse.item
Definition

A questionnaire item

A group or question item from the original questionnaire for which answers are provided.

Control10..*
TypeBackboneElement
Must Supporttrue
Summaryfalse
Comments

Groups cannot have answers and therefore must nest directly within item. When dealing with questions, nesting must occur within each answer because some questions may have multiple answers (and the nesting occurs for each answer).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
qrs-1: Nested item can't be beneath both item and answer (: (answer.exists() and item.exists()).not())
13. QuestionnaireResponse.item.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

Control0..*
TypeExtension
Is Modifiertrue
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
14. QuestionnaireResponse.item.linkId
Definition

The item from the Questionnaire that corresponds to this item in the QuestionnaireResponse resource.

Control1..1
Typestring
Summaryfalse
Requirements

Items can repeat in the answers, so a direct 1..1 correspondence by position might not exist - requiring correspondence by identifier.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
15. QuestionnaireResponse.item.text
Definition

Text description of the questionnaire item

Text that is displayed above the contents of the group or as the text of the question being answered.

Control0..1
Typestring
Must Supporttrue
Summaryfalse
Requirements

Allows the questionnaire response to be read without access to the questionnaire.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
16. QuestionnaireResponse.item.answer
Definition

The answer to the questionnaire question (item)

The respondent's answer(s) to the question.

Control0..*
TypeBackboneElement
Must Supporttrue
Summaryfalse
Comments

The value is nested because we cannot have a repeating structure that has variable type.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
17. QuestionnaireResponse.item.answer.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

Control0..*
TypeExtension
Is Modifiertrue
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
18. QuestionnaireResponse.item.item
Definition

A nested questionnaire item (contained in a group)

Questions or sub-groups nested beneath a question or group.

Control0..*
TypeBackboneElement
Summaryfalse
Requirements

Reports can consist of complex nested groups.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
19. QuestionnaireResponse.item.item.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

Control0..*
TypeExtension
Is Modifiertrue
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
20. QuestionnaireResponse.item.item.linkId
Definition

The item from the Questionnaire that corresponds to this item in the QuestionnaireResponse resource.

Control1..1
Typestring
Summaryfalse
Requirements

Items can repeat in the answers, so a direct 1..1 correspondence by position might not exist - requiring correspondence by identifier.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
21. QuestionnaireResponse.item.item.text
Definition

Text description of the questionnaire item

Text that is displayed above the contents of the group or as the text of the question being answered.

Control0..1
Typestring
Must Supporttrue
Summaryfalse
Requirements

Allows the questionnaire response to be read without access to the questionnaire.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
22. QuestionnaireResponse.item.item.answer
Definition

The answer to the questionnaire question (item)

The respondent's answer(s) to the question.

Control0..*
TypeBackboneElement
Must Supporttrue
Summaryfalse
Comments

The value is nested because we cannot have a repeating structure that has variable type.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
23. QuestionnaireResponse.item.item.answer.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

Control0..*
TypeExtension
Is Modifiertrue
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())

Guidance on how to interpret the contents of this table can be found here.

1. QuestionnaireResponse
Definition

This profile represents a response to the Healthcare Associated Infection Single-Person Report Questionnaire as a FHIR QuestionnaireResponse profile.

Control0..*
Must Supporttrue
Summaryfalse
Alternate NamesForm, QuestionnaireAnswers
Comments

The QuestionnaireResponse contains enough information about the questions asked and their organization that it can be interpreted somewhat independently from the Questionnaire it is based on. I.e. You don't need access to the Questionnaire in order to extract basic information from a QuestionnaireResponse.

InvariantsDefined on this element
dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (: contained.contained.empty())
dom-3: 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: 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: If a resource is contained in another resource, it SHALL NOT have a security label (: contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (: text.`div`.exists())
2. QuestionnaireResponse.id
Definition

The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

Control1..1
Typeid
Summarytrue
Comments

The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

3. QuestionnaireResponse.meta
Definition

The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

Control0..1
TypeMeta
Summarytrue
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
4. QuestionnaireResponse.implicitRules
Definition

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

Control0..1
Typeuri
Is Modifiertrue
Summarytrue
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
5. QuestionnaireResponse.language
Definition

The base language in which the resource is written.

Control0..1
BindingThe codes SHOULD be taken from CommonLanguages A human language
Additional BindingsPurpose
AllLanguagesMax Binding
Typecode
Summaryfalse
Comments

Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
6. QuestionnaireResponse.text
Definition

A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

Control1..1
TypeNarrative
Must Supporttrue
Summaryfalse
Alternate Namesnarrative, html, xhtml, display
Comments

Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
7. QuestionnaireResponse.contained
Definition

These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

Control0..*
TypeResource
Summaryfalse
Alternate Namesinline resources, anonymous resources, contained resources
Comments

This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

8. QuestionnaireResponse.extension
Definition

May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Control0..*
TypeExtension
Summaryfalse
Alternate Namesextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
9. QuestionnaireResponse.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

Control0..*
TypeExtension
Is Modifiertrue
Summaryfalse
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
10. QuestionnaireResponse.identifier
Definition

A business identifier assigned to a particular completed (or partially completed) questionnaire.

NoteThis is a business identifier, not a resource identifier (see discussion)
Control1..1
TypeIdentifier
Must Supporttrue
Summarytrue
Requirements

Used for tracking, registration and other business purposes.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
11. QuestionnaireResponse.basedOn
Definition

The order, proposal or plan that is fulfilled in whole or in part by this QuestionnaireResponse. For example, a ServiceRequest seeking an intake assessment or a decision support recommendation to assess for post-partum depression.

Control0..*
TypeReference(CarePlan|ServiceRequest)
Summarytrue
Requirements

Supports traceability of responsibility for the action and allows linkage of an action to the recommendations acted upon.

Alternate Namesorder
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
12. QuestionnaireResponse.partOf
Definition

A procedure or observation that this questionnaire was performed as part of the execution of. For example, the surgery a checklist was executed as part of.

Control0..*
TypeReference(Observation|Procedure)
Summarytrue
Comments

Composition of questionnaire responses will be handled by the parent questionnaire having answers that reference the child questionnaire. For relationships to referrals, and other types of requests, use basedOn.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
13. QuestionnaireResponse.questionnaire
Definition

The Questionnaire that defines and organizes the questions for which answers are being provided.

Control1..1
Typecanonical(HaiLtcSinglePersonReportQuestionnaire)
Must Supporttrue
Summarytrue
Requirements

Needed to allow editing of the questionnaire response in a manner that enforces the constraints of the original form.

Alternate NamesForm
Comments

If a QuestionnaireResponse references a Questionnaire, then the QuestionnaireResponse structure must be consistent with the Questionnaire (i.e. questions must be organized into the same groups, nested questions must still be nested, etc.).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
14. QuestionnaireResponse.status
Definition

The position of the questionnaire response within its overall lifecycle.

Control1..1
BindingThe codes SHALL be taken from QuestionnaireResponseStatus Lifecycle status of the questionnaire response
Typecode
Is Modifiertrue
Must Supporttrue
Summarytrue
Requirements

The information on Questionnaire resources may possibly be gathered during multiple sessions and altered after considered being finished.

Comments

This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

Pattern Valuecompleted
InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
15. QuestionnaireResponse.subject
Definition

In a single-person report the patient is the subject of the questionnaire response.

Control1..1
TypeReference(USCorePatientProfile)
Summarytrue
Requirements

Allows linking the answers to the individual the answers describe. May also affect access control.

Alternate NamesPatient, Focus
Comments

If the Questionnaire declared a subjectType, the resource pointed to by this element must be an instance of one of the listed types.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
16. QuestionnaireResponse.encounter
Definition

The Encounter during which this questionnaire response was created or to which the creation of this record is tightly associated.

Control0..1
TypeReference(Encounter)
Summarytrue
Requirements

Provides context for the information that was captured. May also affect access control.

Comments

This will typically be the encounter the event occurred within, but some activities may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter. A questionnaire that was initiated during an encounter but not fully completed during the encounter would still generally be associated with the encounter.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
17. QuestionnaireResponse.authored
Definition

The date and/or time that this set of answers were last changed.

Control0..1
TypedateTime
Must Supporttrue
Summarytrue
Requirements

Clinicians need to be able to check the date that the information in the questionnaire was collected, to derive the context of the answers.

Alternate NamesDate Created, Date published, Date Issued, Date updated
Comments

May be different from the lastUpdateTime of the resource itself, because that reflects when the data was known to the server, not when the data was captured.

This element is optional to allow for systems that might not know the value, however it SHOULD be populated if possible.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
18. QuestionnaireResponse.author
Definition

In a single-person report, the author may be software (US Core Device) or may be a person in the role of infection control professional (ICP) (US Core Practitioner).

Control1..1
TypeReference(Device|USCorePractitionerProfile)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
Requirements

Need to know who interpreted the subject's answers to the questions in the questionnaire, and selected the appropriate options for answers.

Alternate NamesLaboratory, Service, Practitioner, Department, Company, Performer
Comments

Mapping a subject's answers to multiple choice options and determining what to put in the textual answer is a matter of interpretation. Authoring by device would indicate that some portion of the questionnaire had been auto-populated.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
19. QuestionnaireResponse.source
Definition

The person who answered the questions about the subject.

Control0..1
TypeReference(Patient|Practitioner|PractitionerRole|RelatedPerson)
Summarytrue
Requirements

When answering questions about a subject that is minor, incapable of answering or an animal, another human source may answer the questions.

Comments

If not specified, no inference can be made about who provided the data.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
20. QuestionnaireResponse.item
Definition

A questionnaire item

Control1..*
TypeBackboneElement
Must Supporttrue
Summaryfalse
Comments

Groups cannot have answers and therefore must nest directly within item. When dealing with questions, nesting must occur within each answer because some questions may have multiple answers (and the nesting occurs for each answer).

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
qrs-1: Nested item can't be beneath both item and answer (: (answer.exists() and item.exists()).not())
21. QuestionnaireResponse.item.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
XML RepresentationIn the XML format, this property is represented as an attribute.
Summaryfalse
22. QuestionnaireResponse.item.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Control0..*
TypeExtension
Summaryfalse
Alternate Namesextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
23. QuestionnaireResponse.item.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

Control0..*
TypeExtension
Is Modifiertrue
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
24. QuestionnaireResponse.item.linkId
Definition

The item from the Questionnaire that corresponds to this item in the QuestionnaireResponse resource.

Control1..1
Typestring
Summaryfalse
Requirements

Items can repeat in the answers, so a direct 1..1 correspondence by position might not exist - requiring correspondence by identifier.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
25. QuestionnaireResponse.item.definition
Definition

A reference to an ElementDefinition that provides the details for the item.

Control0..1
Typeuri
Summaryfalse
Requirements

A common pattern is to define a set of data elements, and then build multiple different questionnaires for different circumstances to gather the data. This element provides traceability to the common definition.

Comments

The ElementDefinition must be in a StructureDefinition, and must have a fragment identifier that identifies the specific data element by its id (Element.id). E.g. http://hl7.org/fhir/StructureDefinition/Observation#Observation.value[x].

There is no need for this element if the item pointed to by the linkId has a definition listed.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
26. QuestionnaireResponse.item.text
Definition

Text description of the questionnaire item

Control0..1
Typestring
Must Supporttrue
Summaryfalse
Requirements

Allows the questionnaire response to be read without access to the questionnaire.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
27. QuestionnaireResponse.item.answer
Definition

The answer to the questionnaire question (item)

Control0..*
TypeBackboneElement
Must Supporttrue
Summaryfalse
Comments

The value is nested because we cannot have a repeating structure that has variable type.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
28. QuestionnaireResponse.item.answer.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
XML RepresentationIn the XML format, this property is represented as an attribute.
Summaryfalse
29. QuestionnaireResponse.item.answer.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Control0..*
TypeExtension
Summaryfalse
Alternate Namesextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
30. QuestionnaireResponse.item.answer.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

Control0..*
TypeExtension
Is Modifiertrue
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
31. QuestionnaireResponse.item.answer.value[x]
Definition

The answer (or one of the answers) provided by the respondent to the question.

Control0..1
BindingFor example codes, see QuestionnaireAnswerCodes Code indicating the response provided for a question
TypeChoice of: boolean, decimal, integer, date, dateTime, time, string, uri, Attachment, Coding, Quantity, Reference(Resource)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Summaryfalse
Requirements

Ability to retain a single-valued answer to a question.

Comments

More complex structures (Attachment, Resource and Quantity) will typically be limited to electronic forms that can expose an appropriate user interface to capture the components and enforce the constraints of a complex data type. Additional complex types can be introduced through extensions. Must match the datatype specified by Questionnaire.item.type in the corresponding Questionnaire.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
32. QuestionnaireResponse.item.answer.item
Definition

Nested groups and/or questions found within this particular answer.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/QuestionnaireResponse#QuestionnaireResponse.item
Summaryfalse
Requirements

It is useful to have "sub-questions", questions which normally appear when certain answers are given and which collect additional details.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
33. QuestionnaireResponse.item.item
Definition

A nested questionnaire item (contained in a group)

Control0..*
TypeBackboneElement
Summaryfalse
Requirements

Reports can consist of complex nested groups.

34. QuestionnaireResponse.item.item.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
XML RepresentationIn the XML format, this property is represented as an attribute.
Summaryfalse
35. QuestionnaireResponse.item.item.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Control0..*
TypeExtension
Summaryfalse
Alternate Namesextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
36. QuestionnaireResponse.item.item.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

Control0..*
TypeExtension
Is Modifiertrue
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
37. QuestionnaireResponse.item.item.linkId
Definition

The item from the Questionnaire that corresponds to this item in the QuestionnaireResponse resource.

Control1..1
Typestring
Summaryfalse
Requirements

Items can repeat in the answers, so a direct 1..1 correspondence by position might not exist - requiring correspondence by identifier.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
38. QuestionnaireResponse.item.item.definition
Definition

A reference to an ElementDefinition that provides the details for the item.

Control0..1
Typeuri
Summaryfalse
Requirements

A common pattern is to define a set of data elements, and then build multiple different questionnaires for different circumstances to gather the data. This element provides traceability to the common definition.

Comments

The ElementDefinition must be in a StructureDefinition, and must have a fragment identifier that identifies the specific data element by its id (Element.id). E.g. http://hl7.org/fhir/StructureDefinition/Observation#Observation.value[x].

There is no need for this element if the item pointed to by the linkId has a definition listed.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
39. QuestionnaireResponse.item.item.text
Definition

Text description of the questionnaire item

Control0..1
Typestring
Must Supporttrue
Summaryfalse
Requirements

Allows the questionnaire response to be read without access to the questionnaire.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
40. QuestionnaireResponse.item.item.answer
Definition

The answer to the questionnaire question (item)

Control0..*
TypeBackboneElement
Must Supporttrue
Summaryfalse
Comments

The value is nested because we cannot have a repeating structure that has variable type.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
41. QuestionnaireResponse.item.item.answer.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Control0..1
Typestring
XML RepresentationIn the XML format, this property is represented as an attribute.
Summaryfalse
42. QuestionnaireResponse.item.item.answer.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Control0..*
TypeExtension
Summaryfalse
Alternate Namesextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
43. QuestionnaireResponse.item.item.answer.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

Control0..*
TypeExtension
Is Modifiertrue
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (: extension.exists() != value.exists())
44. QuestionnaireResponse.item.item.answer.value[x]
Definition

The answer (or one of the answers) provided by the respondent to the question.

Control0..1
BindingFor example codes, see QuestionnaireAnswerCodes Code indicating the response provided for a question
TypeChoice of: boolean, decimal, integer, date, dateTime, time, string, uri, Attachment, Coding, Quantity, Reference(Resource)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Summaryfalse
Requirements

Ability to retain a single-valued answer to a question.

Comments

More complex structures (Attachment, Resource and Quantity) will typically be limited to electronic forms that can expose an appropriate user interface to capture the components and enforce the constraints of a complex data type. Additional complex types can be introduced through extensions. Must match the datatype specified by Questionnaire.item.type in the corresponding Questionnaire.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
45. QuestionnaireResponse.item.item.answer.item
Definition

Nested groups and/or questions found within this particular answer.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/QuestionnaireResponse#QuestionnaireResponse.item
Summaryfalse
Requirements

It is useful to have "sub-questions", questions which normally appear when certain answers are given and which collect additional details.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))
46. QuestionnaireResponse.item.item.item
Definition

Questions or sub-groups nested beneath a question or group.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/QuestionnaireResponse#QuestionnaireResponse.item
Summaryfalse
Requirements

Reports can consist of complex nested groups.

InvariantsDefined on this element
ele-1: All FHIR elements must have a @value or children (: hasValue() or (children().count() > id.count()))