N92.6 Irregular menstruation, unspecified

Billable ICD-10-CM code, FY2026.

Applicable to

• Irregular bleeding NOS
• Irregular periods NOS

Excludes1 (never code together)

• irregular menstruation with:
• lengthened intervals or scanty bleeding (N91.3-N91.5)
• shortened intervals or excessive bleeding (N92.1)

Applies from N92 Excessive, frequent and irregular menstruation

Excludes1 (never code together)

• postmenopausal bleeding (N95.0)
• precocious puberty (menstruation) (E30.1)

MS-DRG index

Defines the logic of DRG(s) 742-743 in MDC 13.

Approximate ICD-9-CM (GEMs)

• 626.4 Irregular menstrual cycle (approximate)
• 626.9 Unspecified disorders of menstruation and other abnormal bleeding from female genital tract (approximate)

Diagnosis Index entries for N92.6

• Bleeding › irregular
• Cycle › menstrual, irregular
• Disorder (of) › menstrual
• Irregular, irregularity › bleeding
• Irregular, irregularity › menstruation (cause unknown)
• Irregular, irregularity › periods
• Menstruation › cycle, irregular
• Menstruation › irregular
• Paramenia
• Periods › irregular

Nearby codes

• N92.1 Excessive and frequent menstruation with irregular cycle
• N92.2 Excessive menstruation at puberty
• N92.3 Ovulation bleeding
• N92.4 Excessive bleeding in the premenopausal period
• N92.5 Other specified irregular menstruation
• N92.6 Irregular menstruation, unspecified (this code)