Argonaut Questionnaire Implementation Guide (Release 1.0.0 )

This page is part of the Argonaut Questionnaire Implementation Guide (v1.0.0: Release) based on FHIR R3. This is the current published version. For a full list of available versions, see the Directory of published versions

Definitions for the StructureDefinition-extension-timeLimit Profile.

1. Extension

A duration associated with completion of a Questionnaire or Questionnaire item. This is used to determine if the end user has completed the Questionnaire or individual questions or groups of questions within the specified time-period.

Control0..1 This element is affected by the following invariants: ele-1

To determine whether the questionnaire or items were answered within the time limit defined by the extension, the Form Filler can record the start and stop date-times in the [Argonaut QuestionnaireResponse responsePeriod Extension]. How this information modifies the behavior of the Form-filler or interpretation of results is an implementation detail outside of scope of this Implementation Guide.

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

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

3. Extension.extension

May be used to represent additional information that is not part of the basic definition of the element. In order 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.

Alternate Namesextensions, user content

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.

4. Extension.url

Source of the definition for the extension code - a logical name or a URL.


The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

Fixed Value
5. Extension.valueDuration:valueDuration

Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).