2027 ICD-10-CM Diagnosis Code N94.6Dysmenorrhea, unspecified

ICD-10-CM Codes›N00–N99›N80-N98›N94

ICD-10-CM N94.6
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

N94.6 is a billable ICD-10-CM diagnosis code for dysmenorrhea, unspecified. 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 dysmenorrhea. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Menstrual disorders.

Code Identity

ICD-10-CM Code
N94.6
Billable Status
Yes — Valid for Submission
Code Describes
Dysmenorrhea, unspecified
Short Description
Dysmenorrhea, unspecified
Same as the full description in the CMS dataset.
Parent Code
N94
Pain and other conditions associated with female genital organs and menstrual cycle

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN80-N98Noninflammatory disorders of female genital tract
CategoryN94Pain and other conditions associated with female genital organs and menstrual cycle
This CodeN94.6Dysmenorrhea, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Dysmenorrhea
  • Dysmenorrhea - non-psychogenic
  • Finding of sensation of periods
  • Mechanical dysmenorrhea
  • Menstrual cramp
  • Pain of uterus
  • Period pain present
  • Secondary dysmenorrhea

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to N94.6: its own notes plus those printed at Chapter 14. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • psychogenic dysmenorrhea (F45.8)

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.

From Chapter 14 (N00-N99) Diseases of the genitourinary system applies to 838 codes
  • 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 N94.6, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming N94.6: its condition is not part of those codes, and both may be reported when the patient has both.

  • Block R10-R19 Symptoms and signs involving the digestive system and abdomen
    symptoms referable to female genital organs (N94.-) names N94.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR GEN021
Menstrual disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Dysmenorrhea

    painful menstruation.

Patient EducationClinical

Period Pain

Menstruation, or period, is normal vaginal bleeding that happens as part of a woman's monthly cycle. Many women have painful periods, also called dysmenorrhea. The pain is most often menstrual cramps, which are a throbbing, cramping pain in your lower abdomen.

The full article covers:

  • What are painful periods?
  • What causes painful periods?
  • What can I do about period pain?
  • When should I get medical help for my period pain?
  • How is the cause of severe period pain diagnosed?
  • What are treatments for severe period pain?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert N94.6 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
625.3 Dysmenorrhea
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About N94.6Overview

What is the ICD-10 code for dysmenorrhea, unspecified?

The ICD-10-CM code for dysmenorrhea, unspecified is N94.6 (sometimes written as N946). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is N94.6 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report dysmenorrhea, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does N94.6 group to?

When dysmenorrhea, unspecified 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 N94.6 be reported with F45.8?

Not as a rule. The Excludes1 note on N94.6 lists "psychogenic dysmenorrhea (F45.8)". 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 N94.6?

Under the General Equivalence Mappings, dysmenorrhea, unspecified converts to ICD-9-CM 625.3 (dysmenorrhea). The mapping is approximate, so confirm the match fits the documentation.