N91.3 Primary oligomenorrhea
Instructional Notes:
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N91.3
Description: Primary oligomenorrhea
↓
-
N91
Description: Absent, scanty and rare menstruation
Exclude1:
- ovarian dysfunction (E28.-)
↓
-
N80-N98
Description: Noninflammatory disorders of female genital tract (N80-N98)
↓
-
N00-N99
Description: Diseases of the genitourinary system
Exclude2:
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)