2026 ICD-10-CM Diagnosis Code N83.53Torsion of ovary, ovarian pedicle and fallopian tube

ICD-10-CM Codes›N00–N99›N80-N98›N83

ICD-10-CM N83.53
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N83.53 is a billable ICD-10-CM diagnosis code for torsion of ovary, ovarian pedicle and fallopian tube. 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. Coders also document this condition as torsion of fallopian tube. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders.

This medical diagnosis code is frequently used in OB/GYN medical specialties to designate conditions such noninflammatory disorders of ovary, fallopian tubes, and broadligament.

Code Identity

ICD-10-CM Code
N83.53
Billable Status
Yes — Valid for Submission
Code Describes
Torsion of ovary, ovarian pedicle and fallopian tube
Short Description
Torsion of ovary, ovarian pedicle and fallopian tube
Same as the full description in the CMS dataset.
Parent Code
N83.5
Torsion of ovary, ovarian pedicle and fallopian tube

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 CodeN83.53Torsion of ovary, ovarian pedicle and fallopian tube

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Torsion of fallopian tube
  • Torsion of ovary
  • Torsion of the ovary and fallopian tube

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Torsion
      • fallopian tube
        • with ovary
    • Torsion
      • ovary (pedicle)
        • with fallopian tube

Clinical ClassificationClinical

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

CCSR GEN025
Other specified female genital disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Ovarian Disorders

The ovaries are a pair of female reproductive glands that make eggs and female hormones. Women have one ovary on each side of the uterus (where a fetus grows during pregnancy). Each ovary is about the size and shape of an almond.

The full article covers:

  • What are ovaries?
  • What are the types of ovarian disorders?
  • What causes ovarian disorders?
  • What are the symptoms of ovarian disorders?
  • How are ovarian disorders diagnosed?
  • What are the treatments for ovarian disorders?

Read the full article at MedlinePlus

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

Convert N83.53 to ICD-9-CMHistory

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

ICD-9-CM
620.5 Torsion of ovary or tube
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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N83.53Overview

Is N83.53 (Torsion of ovary, ovarian pedicle and fallopian tube) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report torsion of ovary, ovarian pedicle and fallopian tube on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N83.53 group to?

When torsion of ovary, ovarian pedicle and fallopian tube 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 N83.53?

Under the General Equivalence Mappings, torsion of ovary, ovarian pedicle and fallopian tube converts to ICD-9-CM 620.5 (torsion of ovary or tube). 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.