ICD-10-CM 2027
ICD-10 code for irregular menstruation
From the official ICD-10-CM alphabetic index entry “Menstruation › irregular”. Page updated September 29, 2026.
About coding irregular menstruation
The ICD-10-CM code for irregular menstruation is N92.6 (Irregular menstruation, unspecified). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on N92.6.
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.
More specific irregular menstruation codes (official index)
- specified NEC N92.5 — Other specified irregular menstruation
Don't confuse with (Excludes1 for N92.6)
Common questions about irregular menstruation ICD-10 codes
What is the ICD-10 code for irregular menstruation?
- N92.6 — Irregular menstruation, unspecified. More specific codes apply when the documentation supports them: N92.5.
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.