ICD-10-CM Diagnosis Code M12.86 - Other specific arthropathies, not elsewhere classified, knee (original) (raw)

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ICD List 2025-2026 Edition

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Other specific arthropathies, not elsewhere classified, knee

ICD-10-CM Code:

M12.86

ICD-10 Code for:

Other specific arthropathies, not elsewhere classified, knee

Is Billable?

Not Valid for Submission

Code Navigator:

M12.86 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity from the list below for a diagnosis of other specific arthropathies, not elsewhere classified, knee. The code is not specific and is NOT valid for the year 2026 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.

Non-specific codes like M12.86 require more digits to indicate the appropriate level of specificity. Consider using any of the following billable codes with a higher level of specificity when coding for other specific arthropathies, not elsewhere classified, knee:

Use M12.861 for Other specific arthropathies, not elsewhere classified, right knee

Use M12.862 for Other specific arthropathies, not elsewhere classified, left knee

Use M12.869 for Other specific arthropathies, not elsewhere classified, unspecified knee

  1. Code Information
  2. Specific Coding
  3. Tabular List of Diseases and Injuries
  4. Index to Diseases and Injuries References
  6. Patient Education
  7. Other Codes Used Similar Conditions
  8. Code History

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

References found for this diagnosis code in the External Cause of Injuries Index:

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

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