ICD-10-CM 2027
ICD-10 code for menstruation irregular
From the official ICD-10-CM alphabetic index entry “Irregular, irregularity › menstruation (cause unknown)”. Page updated September 29, 2026.
About coding menstruation irregular
The ICD-10-CM code for menstruation irregular is N92.6 (Irregular menstruation, unspecified).
Within N92, choose N92.6 (Irregular menstruation, unspecified) only when documentation doesn't support a more specific option: excessive and frequent menstruation with regular cycle (N92.0), excessive and frequent menstruation with irregular cycle (N92.1), excessive menstruation at puberty (N92.2), Ovulation bleeding (N92.3), excessive bleeding in the premenopausal period (N92.4) and other specified irregular menstruation (N92.5).
Don't report N92.6 together with the conditions in its Excludes1 note: lengthened intervals or scanty bleeding (N91.3-N91.5) and shortened intervals or excessive bleeding (N92.1).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for N92.6)
Common questions about menstruation irregular ICD-10 codes
What is the ICD-10 code for menstruation irregular?
- N92.6 — Irregular menstruation, unspecified.
Is N92.6 billable?
- Yes. N92.6 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N92.6 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N92.6 as a principal diagnosis.
Is N92.6 a CC or MCC?
- No. N92.6 is neither a CC nor an MCC under MS-DRG v44.0.