FHIR Extensions Pack
5.3.0-ballot-tc1 - (September 2025 Ballot) International flag

FHIR Extensions Pack, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 5.3.0-ballot-tc1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-extensions/ and changes regularly. See the Directory of published versions

Extension: Questionnaire Max Occurs

Official URL: http://hl7.org/fhir/StructureDefinition/questionnaire-maxOccurs Version: 5.3.0-ballot-tc1
Standards status: Trial-use Maturity Level: 3 Computable Name: QMaxOccurs
Other Identifiers: OID:2.16.840.1.113883.4.642.5.1235

The maximum number of times the group must appear, or the maximum number of answers for a question - when greater than 1 and not unlimited.

Context of Use

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

In addition, the extension can only be used when this FHIRPath expression is true:

type='display' implies (repeats.empty() or repeats=false) and (required.empty() or repeats=false)

Usage info

Usages:

  • This Extension is not used by any profiles in this Implementation Guide

You can also check for usages in the FHIR IG Statistics

Changes since version 5.2.0:

  • The data elements list has changed
  • One or more text definitions, invariants or bindings have changed

    • Formal Views of Extension Content

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

    This structure is derived from Extension

    Summary

    Simple Extension with the type integer: The maximum number of times the group must appear, or the maximum number of answers for a question - when greater than 1 and not unlimited.

    Maturity: 3

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Maximum repetitions
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/questionnaire-maxOccurs"
    ... value[x] 1..1 integer Value of extension

    doco Documentation for this format
    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Maximum repetitions
    ... id 0..1 id Unique id for inter-element referencing
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/questionnaire-maxOccurs"

    doco Documentation for this format

    This structure is derived from Extension

    Summary

    Simple Extension with the type integer: The maximum number of times the group must appear, or the maximum number of answers for a question - when greater than 1 and not unlimited.

    Maturity: 3

    Differential View

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Maximum repetitions
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/questionnaire-maxOccurs"
    ... value[x] 1..1 integer Value of extension

    doco Documentation for this format

    Snapshot View

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Maximum repetitions
    ... id 0..1 id Unique id for inter-element referencing
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/questionnaire-maxOccurs"

    doco Documentation for this format

     

    Other representations of profile: CSV, Excel, Schematron

    Constraints

    IdGradePath(s)DetailsRequirements
    ele-1error**ALL** elementsAll FHIR elements must have a @value or children
    : hasValue() or (children().count() > id.count())
    ext-1error**ALL** extensionsMust have either extensions or value[x], not both
    : extension.exists() != value.exists()

    R4B

    The extension is not used in R4B

    • Duplicate Resource http://hl7.org/fhir/StructureDefinition/questionnaire-maxOccurs of type StructureDefinition (existing version 4.3.0, new version 5.3.0-ballot-tc1)

    R4

    The extension is not used in R4

    • Duplicate Resource http://hl7.org/fhir/StructureDefinition/questionnaire-maxOccurs of type StructureDefinition (existing version 4.0.1, new version 5.3.0-ballot-tc1)

    R3

    The extension is not used in R3

    • Duplicate Resource http://hl7.org/fhir/StructureDefinition/questionnaire-maxOccurs of type StructureDefinition (existing version null, new version 5.3.0-ballot-tc1)

    Search Parameters for this Extension

    (none found)