ICD-10-CM Code M23.0

Cystic meniscus

Version 2020 Non-Billable Code

Not Valid for Submission

M23.0 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of cystic meniscus. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:M23.0
Short Description:Cystic meniscus
Long Description:Cystic meniscus

Consider the following ICD-10 codes with a higher level of specificity:

  • M23.00 - ... unspecified meniscus
  • M23.000 - ... unspecified lateral meniscus, right knee
  • M23.001 - ... unspecified lateral meniscus, left knee
  • M23.002 - ... unspecified lateral meniscus, unspecified knee
  • M23.003 - ... unspecified medial meniscus, right knee
  • M23.004 - ... unspecified medial meniscus, left knee
  • M23.005 - ... unspecified medial meniscus, unspecified knee
  • M23.006 - ... unspecified meniscus, right knee
  • M23.007 - ... unspecified meniscus, left knee
  • M23.009 - ... unspecified meniscus, unspecified knee
  • M23.01 - ... anterior horn of medial meniscus
  • M23.011 - ... anterior horn of medial meniscus, right knee
  • M23.012 - ... anterior horn of medial meniscus, left knee
  • M23.019 - ... anterior horn of medial meniscus, unspecified knee
  • M23.02 - ... posterior horn of medial meniscus
  • M23.021 - ... posterior horn of medial meniscus, right knee
  • M23.022 - ... posterior horn of medial meniscus, left knee
  • M23.029 - ... posterior horn of medial meniscus, unspecified knee
  • M23.03 - ... other medial meniscus
  • M23.031 - ... other medial meniscus, right knee
  • M23.032 - ... other medial meniscus, left knee
  • M23.039 - ... other medial meniscus, unspecified knee
  • M23.04 - ... anterior horn of lateral meniscus
  • M23.041 - ... anterior horn of lateral meniscus, right knee
  • M23.042 - ... anterior horn of lateral meniscus, left knee
  • M23.049 - ... anterior horn of lateral meniscus, unspecified knee
  • M23.05 - ... posterior horn of lateral meniscus
  • M23.051 - ... posterior horn of lateral meniscus, right knee
  • M23.052 - ... posterior horn of lateral meniscus, left knee
  • M23.059 - ... posterior horn of lateral meniscus, unspecified knee
  • M23.06 - ... other lateral meniscus
  • M23.061 - ... other lateral meniscus, right knee
  • M23.062 - ... other lateral meniscus, left knee
  • M23.069 - ... other lateral meniscus, unspecified knee

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Other joint disorders (M20-M25)
      • Internal derangement of knee (M23)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


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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