2027 ICD-10-CM Diagnosis Code N83.01Follicular cyst of right ovary

ICD-10-CM Codes›N00–N99›N80-N98›N83

ICD-10-CM N83.01
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

N83.01 is a billable ICD-10-CM diagnosis code for follicular cyst of right ovary. 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 bilateral follicular cyst of ovaries. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign ovarian cyst.

Code Identity

ICD-10-CM Code
N83.01
Billable Status
Yes — Valid for Submission
Code Describes
Follicular cyst of right ovary
Short Description
Follicular cyst of right ovary
Same as the full description in the CMS dataset.
Parent Code
N83.0
Follicular cyst of ovary

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN80-N98Noninflammatory disorders of female genital tract
CategoryN83Noninflammatory disorders of ovary, fallopian tube and broad ligament
This CodeN83.01Follicular cyst of right ovary

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral follicular cyst of ovaries
  • Cyst of bilateral ovaries
  • Follicular cyst of left ovary
  • Follicular cyst of ovary
  • Follicular cyst of right ovary

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to N83.01: its own notes plus those printed at N83 and Chapter 14. A note printed at a category, block or chapter applies to every code under it.

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 N83 Noninflammatory disorders of ovary, fallopian tube and broad ligament applies to 35 codes
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 N83.01, its category, or a range that includes it.

Excludes2 2

These codes carry an Excludes2 note naming N83.01: its condition is not part of those codes, and both may be reported when the patient has both.

  • D27 Benign neoplasm of ovary
    follicular (atretic) cyst (N83.0-) names N83.0-, which includes this code
  • D27 Benign neoplasm of ovary
    graafian follicle cyst (N83.0-) names N83.0-, which includes this code

Clinical ClassificationClinical

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

CCSR GEN022
Benign ovarian cyst
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Follicle Cyst of Ovary

    a benign ovarian cyst that develops from a persistent, unruptured graafian follicle, which grows larger than three centimeters.

Patient EducationClinical

Ovarian Cysts

The ovaries are part of the female reproductive system. They produce a woman's eggs and make female hormones. Ovarian cysts are fluid-filled sacs in or on an ovary. They usually form during ovulation, when the ovary releases an egg. They are usually harmless and go away by themselves. Most women have them sometime during their lives.

Read the full article at MedlinePlus

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

Convert N83.01 to ICD-9-CMHistory

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

ICD-9-CM
620.0 Follicular cyst of ovary
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement N83.01 replaces the following previously assigned code(s):

  • N83.0 - Follicular cyst of ovary
FY 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About N83.01Overview

What is the ICD-10 code for follicular cyst of right ovary?

The ICD-10-CM code for follicular cyst of right ovary is N83.01 (sometimes written as N8301). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is N83.01 (Follicular cyst of ovary) a billable code?

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

What MS-DRG does N83.01 group to?

When follicular cyst of right ovary 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.

What is the ICD-9 equivalent of N83.01?

Under the General Equivalence Mappings, follicular cyst of right ovary converts to ICD-9-CM 620.0 (follicular cyst of ovary). The mapping is approximate, so confirm the match fits the documentation.