2027 ICD-10-CM Diagnosis Code N92.1Excessive and frequent menstruation with irregular cycle
ICD-10-CM Codes›N00–N99›N80-N98›N92
- Billable — Valid for Submission
- Chronic Condition
N92.1 is a billable ICD-10-CM diagnosis code for excessive and frequent menstruation with irregular cycle. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 742 through 743, 760 through 761. Coders also document this condition as abnormal vaginal bleeding. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Menstrual disorders.
This medical diagnosis code is frequently used in OB/GYN medical specialties to designate conditions such excessive, frequent and irregular menstruation.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abnormal vaginal bleeding
- Break-through bleeding
- Excessive menstruation with irregular cycle
- Intermenstrual heavy bleeding
- Irregular intermenstrual bleeding
- Irregular periods
- Menometrorrhagia
- Menorrhagia
- Mid-cycle bleeding
- Withdrawal bleeding
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N92.1: its own notes plus those printed at N92 and Chapter 14. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Irregular intermenstrual bleeding
- Irregular, shortened intervals between menstrual bleeding
- Menometrorrhagia
- Metrorrhagia
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name N92.1, its category, or a range that includes it.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Bleeding See Also: Hemorrhage;
Menometrorrhagia N92.1
Metrorrhagia N92.1
Periods See Also: Menstruation;
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Metrorrhagia
abnormal uterine bleeding that is not related to menstruation, usually in females without regular menstrual cycle. the irregular and unpredictable bleeding usually comes from a dysfunctional endometrium.
Patient EducationClinical
Menstruation
Menstruation, also called a period, is normal vaginal bleeding that happens as part of the monthly cycle in women and girls. Every month, the body prepares for pregnancy. If pregnancy does not happen, the uterus (womb) sheds its lining. This blood and tissue leave the body through the vagina.
The full article covers:
- What is menstruation?
- What is the menstrual cycle?
- When will my period start?
- What are the symptoms of menstruation?
- What are menstrual irregularities?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert N92.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N92.1Overview
What is the ICD-10 code for excessive and frequent menstruation with irregular cycle?
The ICD-10-CM code for excessive and frequent menstruation with irregular cycle is N92.1 (sometimes written as N921). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N92.1 (Excessive, frequent and irregular menstruation) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report excessive and frequent menstruation with irregular cycle on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N92.1 group to?
When excessive and frequent menstruation with irregular cycle is the principal diagnosis on an inpatient stay, it groups to MS-DRG 742, 743, 760, 761, with relative weights from 0.7039 to 1.8448 depending on complications. Higher weights mean higher Medicare reimbursement.
Can N92.1 be reported with N95.0?
Not as a rule. The Excludes1 note at N92, which applies to N92.1, lists "postmenopausal bleeding (N95.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of N92.1?
Under the General Equivalence Mappings, excessive and frequent menstruation with irregular cycle converts to ICD-9-CM 626.6 (metrorrhagia). The mapping is a direct match.
