CPT® Code 29886

Arthroscopy of the knee is a minimally invasive surgical procedure that allows for direct visualization and treatment of various knee joint conditions. Specifically, CPT® Code 29886 refers to the surgical arthroscopy performed to address an intact osteochondritis dissecans lesion. Osteochondritis dissecans is a condition characterized by the separation of a fragment of bone and the overlying cartilage from the underlying bone, typically occurring in the knee joint. This condition can lead to the formation of loose bodies within the joint, which may cause pain, swelling, and limited range of motion. The procedure involves making small incisions, known as portals, on the medial and lateral sides of the knee joint to access the affected area. Through these portals, an arthroscope—a specialized instrument equipped with a camera—is inserted to visualize the joint's interior. The surgeon can then perform drilling on the lesion to promote healing by creating channels that allow blood vessels to penetrate the affected area, facilitating the replacement of necrotic bone with healthy tissue. This procedure is crucial for restoring function and alleviating symptoms associated with osteochondritis dissecans while minimizing recovery time compared to open surgical techniques.