N91Absent, scanty and rare menstruation

Non-Billable/Non-Specific

Type 1 Excludes

ovarian dysfunction (E28.-)

Codes

N91.0Primary amenorrhea
N91.1Secondary amenorrhea
N91.2Amenorrhea, unspecified
N91.3Primary oligomenorrhea
N91.4Secondary oligomenorrhea
N91.5Oligomenorrhea, unspecified