ICD 10 CODE for derangement of the right knee. During arthroscopy a medial meniscus tear from an old injury was found.

Question:- ICD 10 CODE for derangement of the right knee. During arthroscopy a medial meniscus tear from an old injury was found.

Answer

The ICD-10 code that will be applied to a derangement of the right knee involving its medial meniscus tear discovered with arthroscopy is M23.209. This code is classified as other internal derangements of knee (M23). 0 denotes an unspecified meniscus derangement while 9 in the fourth digit indicates this is concerning the right knee.

Medial meniscus tear is a term that means the tearing of cartilage between medial femoral condyle and lateral tibia plateau inside knee joint. This cartilage ensures that the knee is protected and cushioned. This cartilage likely tore due to an old injury. This would over time have resulted into pain, stiffness, swelling and catching or locking of the knee.

A minimally invasive procedure called arthroscopy was performed. It entails visualizing the inside of a knee joint using a small camera inserted through an incision that is very minute. At this point, the physician identified and confirmed that a medial meniscus tear was present on the right side (Cleveland Clinic, 2024). The patient had persistent problems with the right knee and a tear from an old injury was most likely to blame. The physician may also have trimmed or repaired the torn meniscus during the procedure using of arthroscope.