exclusiveRelativeQualifier
A qualifier that expresses an exclusive quantity offset in a before/after interval operator phrase. less than means strictly less than the given offset; more than means strictly greater than.
Examples
Strictly less than 30 days before
MedStart less than 30 days before start of Encounter.period
Strictly more than 1 year after
FollowUp more than 1 year after end of Encounter.period
EBNF
exclusiveRelativeQualifier : 'less than' | 'more than' ;