Category · N80-N98

N91Absent, scanty and rare menstruation

7 codes in this category

N91Absent, scanty and rare menstruationHeaderN91.0Primary amenorrheaBillableN91.1Secondary amenorrheaBillableN91.2Amenorrhea, unspecifiedBillableN91.3Primary oligomenorrheaBillableN91.4Secondary oligomenorrheaBillableN91.5Oligomenorrhea, unspecifiedBillable