ICD-10-CM Codes
N00-N99
N80-N98
Absent, scanty and rare menstruation N91

Absent, scanty and rare menstruation N91-

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as N91. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

ovarian dysfunction (
ICD-10-CM Diagnosis Code E28
- E28 Ovarian dysfunction
  - E28.0 Estrogen excess
  - E28.1 Androgen excess
  - E28.2 Polycystic ovarian syndrome
  - E28.3 Primary ovarian failure
    - E28.31 Premature menopause
      E28.310 Symptomatic premature menopause
      E28.319 Asymptomatic premature menopause
    - E28.39 Other primary ovarian failure
  - E28.8 Other ovarian dysfunction
  - E28.9 Ovarian dysfunction, unspecified
E28.-
)

Codes

N91 Absent, scanty and rare menstruation
- N91.0 Primary amenorrhea
- N91.1 Secondary amenorrhea
- N91.2 Amenorrhea, unspecified
- N91.3 Primary oligomenorrhea
- N91.4 Secondary oligomenorrhea
- N91.5 Oligomenorrhea, unspecified