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ICD-10-CM Codes N00-N99 N80-N98 N91

ICD-10-CM Diagnosis Code N91

Absent, scanty and rare menstruation

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Excludes-1 for N91:

  • ovarian dysfunction (E28.-)

Codes Hierarchy:

    • 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