Structured Data Capture, published by HL7 International - FHIR Infrastructure Work Group. This is not an authorized publication; it is the continuous build for version 2.8.0). This version is based on the current content of https://github.com/HL7/sdc/ and changes regularly. See the Directory of published versions

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Extension: CandidateExpressionExtension

A FHIRPath expression or FHIR Query that resolves to a list of candidate answers for the question item or that establishes context for a group item. The user may select from among the candidates to choose answers for the question.

The official URL for this extension is:

http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-candidateExpression

Status: draft
Extension maintained by: HL7 International - FHIR Infrastructure Work Group

Context of Use

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

• Questionnaire.item
• Questionnaire.item.item

Usage info

Usage:

• Use this Extension: Populatable Questionnaire

Formal Views of Extension Content

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

 

Other representations of extension: Schematron

Constraints

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