2026 ICD-10-CM Diagnosis Code N83.202Unspecified ovarian cyst, left side

ICD-10-CM Codes›N00–N99›N80-N98›N83

ICD-10-CM N83.202
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N83.202 is a billable ICD-10-CM diagnosis code for unspecified ovarian cyst, left side. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 742 through 743, 760 through 761. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign ovarian cyst.

Code Identity

ICD-10-CM Code
N83.202
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified ovarian cyst, left side
Short Description
Unspecified ovarian cyst, left side
Same as the full description in the CMS dataset.
Parent Code
N83.20
Unspecified ovarian cysts

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 CodeN83.202Unspecified ovarian cyst, left side

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral ovarian cyst during pregnancy
  • Bilateral ruptured cyst of ovaries
  • Bilateral serous cyst of ovaries
  • Cyst of bilateral ovaries
  • Cyst of left ovary
  • Cyst of left ovary during pregnancy
  • Cyst of ovary in pregnancy
  • Cyst of right ovary during pregnancy
  • Rupture of ovary
  • Ruptured cyst of left ovary
  • Ruptured cyst of ovary
  • Ruptured cyst of right ovary
  • Serous cyst of left ovary
  • Serous cyst of right ovary

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

  • Ovarian Cysts

    general term for cysts and cystic diseases of the ovary.

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 N83.202 to ICD-9-CMHistory

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

ICD-9-CM
620.2 Ovarian cyst NEC/NOS
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement N83.202 replaces the following previously assigned code(s):

  • N83.20 - Unspecified ovarian cysts
FY 2018AddedAdded to the ICD-10-CM code setEffective October 1, 2017.
FY 2019–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N83.202Overview

Is N83.202 (Unspecified ovarian cysts) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified ovarian cyst, left side on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N83.202 group to?

When unspecified ovarian cyst, left side is the principal diagnosis on an inpatient stay, it groups to MS-DRG 742, 743, 760, 761, with relative weights from 0.5696 to 1.8348 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N83.202?

Under the General Equivalence Mappings, unspecified ovarian cyst, left side converts to ICD-9-CM 620.2 (ovarian cyst NEC/NOS). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.