N91.2

Amenorrhoea, unspecified

Coding rules (TT06)

●Applies only/mainly to females

Coding guidance (WHO 2019)

Absence of menstruation NOS

Sibling codes

N91Absent, scanty and rare menstruation N91.0Primary amenorrhoea N91.1Secondary amenorrhoea N91.3Primary oligomenorrhoea N91.4Secondary oligomenorrhoea N91.5Oligomenorrhoea, unspecified