2026 ICD-10-CM Diagnosis Code M67.431Ganglion, right wrist

ICD-10-CM Codes›M00–M99›M65-M67›M67

ICD-10-CM M67.431
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M67.431 is a billable ICD-10-CM diagnosis code for ganglion, right wrist. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 557 through 558. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Tendon and synovial disorders.

Code Identity

ICD-10-CM Code
M67.431
Billable Status
Yes — Valid for Submission
Code Describes
Ganglion, right wrist
Short Description
Ganglion, right wrist
Same as the full description in the CMS dataset.
Parent Code
M67.43
Ganglion, wrist

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM65-M67Disorders of synovium and tendon
CategoryM67Other disorders of synovium and tendon
This CodeM67.431Ganglion, right wrist

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral ganglion cyst of dorsal wrists
  • Bilateral ganglion cyst of wrists
  • Ganglion cyst of bilateral volar wrists
  • Ganglion cyst of left dorsal wrist
  • Ganglion cyst of left volar wrist
  • Ganglion cyst of left wrist
  • Ganglion cyst of right dorsal wrist
  • Ganglion cyst of right volar wrist
  • Ganglion cyst of right wrist
  • Ganglion cyst of volar wrist
  • Ganglion of wrist

Clinical ClassificationClinical

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

CCSR MUS009
Tendon and synovial disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Connective Tissue Disorders

Your connective tissue supports many different parts of your body, such as your skin, eyes, and heart. It is like a "cellular glue" that gives your body parts their shape and helps keep them strong. It also helps some of your tissues do their work. It is made of many kinds of proteins. Cartilage and fat are types of connective tissue.

Read the full article at MedlinePlus

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

Convert M67.431 to ICD-9-CMHistory

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

ICD-9-CM
727.41 Ganglion of joint
Approximate The match is approximate rather than exact.
ICD-9-CM
727.42 Ganglion of tendon
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 M67.431Overview

Is M67.431 (Ganglion, wrist) a billable code?

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

What MS-DRG does M67.431 group to?

When ganglion, right wrist is the principal diagnosis on an inpatient stay, it groups to MS-DRG 557, 558, with relative weights from 0.8932 to 1.4869 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M67.431?

Under the General Equivalence Mappings, ganglion, right wrist converts to ICD-9-CM 727.41 (ganglion of joint) and 727.42 (ganglion of tendon). 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.