2026 ICD-10-CM Diagnosis Code M22Disorder of patella

ICD-10-CM Codes›M00–M99›M20-M25›M22

ICD-10-CM M22
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M22 is a non-billable ICD-10-CM category code for disorder of patella, so it cannot be submitted on claims. Use a more specific code from this category instead, such as M22.00, M22.01, M22.02, and M22.10.

Code Identity

ICD-10-CM Code
M22
Billable Status
No — Non-Billable Category
Code Describes
Disorder of patella
Short Description
Disorder of patella
Same as the full description in the CMS dataset.
Chapter
M20-M25
Other joint disorders

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM20-M25Other joint disorders
CategoryM22Disorder of patella
This CodeM22Disorder of patella

Specific Coding for Disorder of patellaOverview

Non-specific codes like M22 require more characters. Use one of these billable codes instead:

  • M22.0 for Recurrent dislocation of patella

  • Use M22.00 for Recurrent dislocation of patella, unspecified knee

  • Use M22.01 for Recurrent dislocation of patella, right knee

  • Use M22.02 for Recurrent dislocation of patella, left knee

  • M22.1 for Recurrent subluxation of patella

  • Use M22.10 for Recurrent subluxation of patella, unspecified knee

  • Use M22.11 for Recurrent subluxation of patella, right knee

  • Use M22.12 for Recurrent subluxation of patella, left knee

  • M22.2 for Patellofemoral disorders

  • M22.2X for Patellofemoral disorders

  • M22.3 for Other derangements of patella

  • M22.3X for Other derangements of patella

  • M22.4 for Chondromalacia patellae

  • Use M22.40 for Chondromalacia patellae, unspecified knee

  • Use M22.41 for Chondromalacia patellae, right knee

  • Use M22.42 for Chondromalacia patellae, left knee

  • M22.8 for Other disorders of patella

  • M22.8X for Other disorders of patella

  • M22.9 for Unspecified disorder of patella

  • Use M22.90 for Unspecified disorder of patella, unspecified knee

  • Use M22.91 for Unspecified disorder of patella, right knee

  • Use M22.92 for Unspecified disorder of patella, left knee

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 2 Excludes

  • traumatic dislocation of patella S83.0

Patient EducationClinical

Knee Injuries and Disorders

Your knee joint is made up of bone, cartilage, ligaments and fluid. Muscles and tendons help the knee joint move. When any of these structures is hurt or diseased, you have knee problems. Knee problems can cause pain and difficulty walking.

Read the full article at MedlinePlus

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

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 M22Overview

Is M22 (Disorder of patella) a billable code?

No. This is a category header that groups the codes for disorder of patella, and headers cannot be submitted on claims. Claims for disorder of patella need a more specific code from this category, such as M22.00, M22.01, and M22.02.