http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-columnCount|4.0.0-ballot
For questions with a set of options, indicates the number of columns across which those choices should be organized. E.g., 2 columns, 5 columns, etc.
Type: Extension (a.k.a: http://hl7.org/fhir/StructureDefinition/Extension)
Type dependencies: 0
Elements
extension: Extension
value[x]: positiveInt