CPT® Code 29820

Arthroscopy of the shoulder is a minimally invasive surgical procedure that allows for the examination and treatment of various shoulder joint conditions. The specific procedure described by CPT® Code 29820 involves a partial synovectomy, which is the surgical removal of a portion of the synovial membrane that lines the shoulder joint. This procedure is typically indicated for patients suffering from synovial disease, which may include conditions such as synovitis or other inflammatory processes affecting the synovial tissue. During the procedure, the patient is positioned either in a lateral decubitus position, where they lie on their side with the affected arm suspended, or in a beach chair position, which allows for optimal access to the shoulder joint. The use of skin traction helps to stabilize the arm and improve visibility during the surgery. The procedure begins with the creation of small incisions, known as portal incisions, through which an infusion pump is used to introduce sterile saline solution into the joint space, facilitating a clearer view of the internal structures. Following a diagnostic assessment, the surgeon can then proceed to remove the affected synovial tissue using specialized surgical instruments. This technique not only alleviates symptoms but also aims to restore function to the shoulder joint by addressing the underlying synovial pathology.