Instruction Source: N91.4
Secondary oligomenorrhea
Instruction Source: N91
Absent, scanty and rare menstruation
Excludes 1 (Mutually Exclusive)
- ovarian dysfunction (E28.-)
Instruction Source: N80-N98
Noninflammatory disorders of female genital tract (N80-N98)
Instruction Source: N00-N99
Diseases of the genitourinary system
Excludes 2 (Not Included Here)
- 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)