This page is part of the Structured Data Capture FHIR IG (v3.0.0-preview: STU 3 Draft) based on FHIR R4. The current version which supercedes this version is 3.0.0. For a full list of available versions, see the Directory of published versions

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Extension: Optional Display?

Official URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-optionalDisplay				Version: 3.0.0-preview
Standards status: Trial-use			Maturity Level: 3	Computable Name: OptionalDisplayExtension

This extension is used when defining high-level questionnaires that will then be used as a basis for ‘derived’ Questionnaires that are further refined for use in specific organizations or contexts. If the extension is present and set to ‘true’, it means that this item should be considered to be ‘optional’ from an adaptation perspective and that the question can be removed (i.e. not displayed) in derived questionnaires without impacting the validity of the instrument. Alternatively, the element can be marked as ‘hidden’ and ‘readOnly’ and have a value or descendant item values declared using initialValue or initialExpression. If the element with ‘optionalDisplay=true’ is marked as ‘required=true’, then this second approach is the only means to exclude the element from display.

This was introduced to satisfy requirements from the College of American Pathologists (CAP)

Context of Use

This extension may be used on the following element(s):

• Questionnaire.item

Usage info

Usage:

• Use this Extension: Advanced Rendering Questionnaire
• Examples for this Extension: SDCAdvancedRenderingExample

Formal Views of Extension Content

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

 

Other representations of profile: CSV, Excel, Schematron

Constraints

Id	Grade	Path	Details	Requirements
ele-1	error	Extension	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	Extension	Must have either extensions or value[x], not both : extension.exists() != value.exists()
ele-1	error	Extension.extension	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	Extension.extension	Must have either extensions or value[x], not both : extension.exists() != value.exists()
ele-1	error	Extension.value[x]	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())