http://hl7.org/fhir/StructureDefinition/questionnaire-minOccurs|5.2.0

The minimum number of times the group must appear, or the minimum number of answers for a question - when greater than 1.
NameFlagsCardTypeDescription & Constraints
Extension
0..1Minimum repetitions
 
extension
?..0
 
url
?..?
 
value[x] *
1..?
 
 
valueInteger *
1..?integer