2026 ICD-10-CM Diagnosis Code N44.00Torsion of testis, unspecified

ICD-10-CM Codes›N00–N99›N40-N53›N44

ICD-10-CM N44.00
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N44.00 is a billable ICD-10-CM diagnosis code for torsion of testis, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 729 through 730. Coders also document this condition as intermittent torsion of testis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified male genital disorders.

Code Identity

ICD-10-CM Code
N44.00
Billable Status
Yes — Valid for Submission
Code Describes
Torsion of testis, unspecified
Short Description
Torsion of testis, unspecified
Same as the full description in the CMS dataset.
Parent Code
N44.0
Torsion of testis

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN40-N53Diseases of male genital organs
CategoryN44Noninflammatory disorders of testis
This CodeN44.00Torsion of testis, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Intermittent torsion of testis
  • Necrosis of testis due to torsion of testis
  • Reversible ischemia of testis due to torsion
  • Torsion of testis

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
      • testis, testicle

Clinical ClassificationClinical

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

CCSR GEN016
Other specified male genital disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Testicular Disorders

Testicles, or testes, make male hormones and sperm. They are two egg-shaped organs inside the scrotum, the loose sac of skin behind the penis. It's easy to injure your testicles because they are not protected by bones or muscles. Men and boys should wear athletic supporters when they play sports.

Read the full article at MedlinePlus

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

Convert N44.00 to ICD-9-CMHistory

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

ICD-9-CM
608.20 Torsion of testis NOS
Exact Match The mapping is direct, with no qualifiers.

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 N44.00Overview

Is N44.00 (Torsion of testis) a billable code?

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

What MS-DRG does N44.00 group to?

When torsion of testis, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 729, 730, with relative weights from 0.6720 to 1.0587 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N44.00?

Under the General Equivalence Mappings, torsion of testis, unspecified converts to ICD-9-CM 608.20 (torsion of testis NOS). The mapping is a direct match.

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.