CPT® Code 20600

Arthrocentesis, also known as joint aspiration, is a medical procedure that involves the removal of fluid from a joint or bursa, which is a small sac filled with lubricating fluid located near joints. This procedure is typically performed to diagnose the underlying cause of joint effusion, which is the accumulation of excess fluid in the joint space, and to alleviate pain associated with this condition. During the procedure, a healthcare professional may also inject medication into the joint or bursa to reduce inflammation and provide relief from pain. Commonly, anti-inflammatory medications, such as corticosteroids, are used for this purpose. The process begins with the cleansing of the skin over the affected joint to minimize the risk of infection. A local anesthetic may be administered to numb the area, ensuring patient comfort during the procedure. A needle attached to a syringe is then carefully inserted into the joint or bursa to aspirate the fluid, which is subsequently sent for laboratory analysis to aid in diagnosis. In cases where an injection is performed, it typically follows the aspiration step. The specific CPT® code for this procedure is 20600, which is designated for arthrocentesis, aspiration, and/or injection of small joints or bursae, such as those found in the fingers or toes, without the use of ultrasound guidance. If ultrasound guidance is utilized, the appropriate code to report is 20604, which includes the requirement for a permanent recording and report of the procedure.