Version 2024

2024 ICD-10-CM Diagnosis Code M22

Disorder of patella

ICD-10-CM Code:
M22
ICD-10 Code for:
Disorder of patella
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Diseases of the musculoskeletal system and connective tissue
    (M00–M99)
    • Other joint disorders
      (M20-M25)
      • Disorder of patella
        (M22)

M22 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of disorder of patella. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Disorder of patella

Non-specific codes like M22 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for disorder of patella:

  • M22.0 for Recurrent dislocation of patella - NON-BILLABLE CODE

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

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

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

  • M22.1 for Recurrent subluxation of patella - NON-BILLABLE CODE

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

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

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

  • M22.2 for Patellofemoral disorders - NON-BILLABLE CODE

  • M22.2X for Patellofemoral disorders - NON-BILLABLE CODE

  • M22.3 for Other derangements of patella - NON-BILLABLE CODE

  • M22.3X for Other derangements of patella - NON-BILLABLE CODE

  • M22.4 for Chondromalacia patellae - NON-BILLABLE CODE

  • Use M22.40 for Chondromalacia patellae, unspecified knee - BILLABLE CODE

  • Use M22.41 for Chondromalacia patellae, right knee - BILLABLE CODE

  • Use M22.42 for Chondromalacia patellae, left knee - BILLABLE CODE

  • M22.8 for Other disorders of patella - NON-BILLABLE CODE

  • M22.8X for Other disorders of patella - NON-BILLABLE CODE

  • M22.9 for Unspecified disorder of patella - NON-BILLABLE CODE

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

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

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

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • traumatic dislocation of patella S83.0

Patient Education


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.

Knee problems are very common, and they occur in people of all ages. Knee problems can interfere with many things, from participation in sports to simply getting up from a chair and walking. This can have a big impact on your life.

The most common disease affecting the knee is osteoarthritis. The cartilage in the knee gradually wears away, causing pain and swelling.

Injuries to ligaments and tendons also cause knee problems. A common injury is to the anterior cruciate ligament (ACL). You usually injure your ACL by a sudden twisting motion. ACL and other knee injuries are common sports injuries.

Treatment of knee problems depends on the cause. In some cases your doctor may recommend knee replacement.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.