M17 - Osteoarthritis of knee

Version 2023
Short Description:Osteoarthritis of knee
Long Description:Osteoarthritis of knee
Status: Not Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Osteoarthritis (M15-M19)
      • Osteoarthritis of knee (M17)

M17 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of osteoarthritis of knee. The code is not specific and is NOT valid for the year 2023 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 for Osteoarthritis of knee

Non-specific codes like M17 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for osteoarthritis of knee:

  • BILLABLE CODE - Use M17.0 for Bilateral primary osteoarthritis of knee
  • NON-BILLABLE CODE - M17.1 for Unilateral primary osteoarthritis of knee
  • BILLABLE CODE - Use M17.10 for Unilateral primary osteoarthritis, unspecified knee
  • BILLABLE CODE - Use M17.11 for Unilateral primary osteoarthritis, right knee
  • BILLABLE CODE - Use M17.12 for Unilateral primary osteoarthritis, left knee
  • BILLABLE CODE - Use M17.2 for Bilateral post-traumatic osteoarthritis of knee
  • NON-BILLABLE CODE - M17.3 for Unilateral post-traumatic osteoarthritis of knee
  • BILLABLE CODE - Use M17.30 for Unilateral post-traumatic osteoarthritis, unspecified knee
  • BILLABLE CODE - Use M17.31 for Unilateral post-traumatic osteoarthritis, right knee
  • BILLABLE CODE - Use M17.32 for Unilateral post-traumatic osteoarthritis, left knee
  • BILLABLE CODE - Use M17.4 for Other bilateral secondary osteoarthritis of knee
  • BILLABLE CODE - Use M17.5 for Other unilateral secondary osteoarthritis of knee
  • BILLABLE CODE - Use M17.9 for Osteoarthritis of knee, unspecified

Patient Education


What is osteoarthritis?

Osteoarthritis, sometimes called OA, is a type of arthritis that only affects the joints, usually in the hands, knees, hips, neck, and lower back. It's the most common type of arthritis.

In a healthy joint, the ends of the bones are covered with a smooth, slippery tissue called cartilage. The cartilage pads the bones and helps them glide easily when you move the joint. With osteoarthritis, the cartilage breaks down and becomes rough. Sometimes, all the cartilage wears away and the bones rub together. Bumps of extra bone called bone spurs may grow in the joint area.

There is no cure for osteoarthritis. It usually gets worse slowly. But there's a lot you can do to manage the symptoms.

What are the symptoms of osteoarthritis?

Osteoarthritis affects people in different ways, and not everyone has pain. The most common symptoms are:

What causes osteoarthritis?

Researchers aren't sure what causes osteoarthritis. They think that it could be caused by a combination of factors in the body and the environment. Your chance of developing osteoarthritis increases with age. They also know that some people are more likely to develop it than others.

Who is more likely to develop osteoarthritis?

Things that make you more likely to develop osteoarthritis include:

How is osteoarthritis diagnosed?

There is no specific test for osteoarthritis. To find out if you have osteoarthritis, your provider:

What are the treatments for osteoarthritis?

The goal of treating osteoarthritis is to ease your pain, help you move better, and stop it from getting worse.

Treatment usually begins with:

You can buy some pain relievers and arthritis creams without a prescription. They can be helpful, but it's best to talk to your provider about using them. If they don't help enough, your provider may prescribe injections (shots) into the joint or prescription pain relievers.

Complementary therapies may help some people. Massage can increase blood flow and bring warmth to the area. Some research shows that acupuncture may help relieve osteoarthritis pain. Simple things like heat and ice can help, too.

If none of these treatments help enough, surgery may be an option. You and your provider can decide if it's right for you.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

[Learn More in MedlinePlus]


Osteoarthritis is a joint disease that happens when the tissues in the joint break down over time.
[Learn More in MedlinePlus]

Code History