N92.1 vs N92.6
N92.1 and N92.6 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on N92.6
shortened intervals or excessive bleeding (N92.1)
N92.1
Excessive and frequent menstruation with irregular cycle
Billable
- Chapter 14
- Diseases of the genitourinary system
- Section
- N80-N98
Use when the record says
- Irregular intermenstrual bleeding
- Irregular, shortened intervals between menstrual bleeding
- Menometrorrhagia
- Metrorrhagia
Indexed under
- Menometrorrhagia
- Metrorrhagia
- Periods › shortened intervals
- Bleeding › intermenstrual › irregular
- Excess, excessive, excessively › menstruation › with irregular cycle
N92.6
Irregular menstruation, unspecified
BillableUnspecified
- Chapter 14
- Diseases of the genitourinary system
- Section
- N80-N98
Use when the record says
- Irregular bleeding NOS
- Irregular periods NOS
Indexed under
- Paramenia
- Bleeding › irregular
- Cycle › menstrual, irregular
- Disorder › menstrual (of)
- Irregular, irregularity › bleeding
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027