2026 ICD-10-CM Diagnosis Code M25.329Other instability, unspecified elbow

ICD-10-CM Codes›M00–M99›M20-M25›M25

ICD-10-CM M25.329
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M25.329 is a billable ICD-10-CM diagnosis code for other instability, unspecified elbow. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 564 through 566. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified joint disorders.

Code Identity

ICD-10-CM Code
M25.329
Billable Status
Yes — Valid for Submission
Code Describes
Other instability, unspecified elbow
Short Description
Other instability, unspecified elbow
Same as the full description in the CMS dataset.
Parent Code
M25.32
Other instability, elbow

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM20-M25Other joint disorders
CategoryM25Other joint disorder, not elsewhere classified
This CodeM25.329Other instability, unspecified elbow

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Active range of elbow extension - finding
  • Active range of elbow flexion - finding
  • Active range of elbow pronation - finding
  • Active range of elbow supination - finding
  • Elbow joint hypermobility
  • Elbow joint laxity
  • Elbow joint unstable
  • Increased active range of elbow extension
  • Increased active range of elbow flexion
  • Increased active range of elbow pronation
  • Increased active range of elbow supination
  • Increased passive range of elbow extension
  • Increased passive range of elbow flexion
  • Increased passive range of elbow pronation
  • Increased passive range of elbow supination
  • Increased range of elbow movement
  • Passive range of elbow extension - finding
  • Passive range of elbow flexion - finding
  • Passive range of elbow pronation - finding
  • Passive range of elbow supination - finding
  • Range of elbow flexion - finding
  • Range of elbow pronation - finding
  • Range of elbow supination - finding

Clinical ClassificationClinical

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

CCSR MUS007
Other specified joint disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Elbow Injuries and Disorders

Your elbow joint is made up of bone, cartilage, ligaments and fluid. Muscles and tendons help the elbow joint move. When any of these structures is hurt or diseased, you have elbow problems.

Read the full article at MedlinePlus

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

Convert M25.329 to ICD-9-CMHistory

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

ICD-9-CM
718.82 Jt derangment NEC-up/arm
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 M25.329Overview

Is M25.329 (Other instability, elbow) a billable code?

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

What MS-DRG does M25.329 group to?

When other instability, unspecified elbow is the principal diagnosis on an inpatient stay, it groups to MS-DRG 564, 565, 566, with relative weights from 0.7493 to 1.5436 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M25.329?

Under the General Equivalence Mappings, other instability, unspecified elbow converts to ICD-9-CM 718.82 (jt derangment NEC-up/arm). 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.