CPT® Code 26530

The CPT® Code 26530 refers to the surgical procedure known as arthroplasty of the metacarpophalangeal (MCP) joint, specifically indicating that this procedure is performed on each joint without the placement of a prosthetic joint implant. In this context, the term "arthroplasty" denotes a surgical intervention aimed at restoring the function of a joint by removing or repairing damaged tissue. The MCP joint is the joint located between the metacarpal bones of the hand and the proximal phalanges of the fingers, playing a crucial role in hand movement and dexterity. During the procedure, an incision is made over the dorsal aspect of the MCP joint, allowing access to the underlying structures. The surgeon carefully dissects the soft tissues to expose the extensor tendons while protecting the surrounding superficial veins and nerves. The joint capsule is then incised to access the diseased joint tissue, which may include bone spurs and damaged cartilage. These pathological tissues are excised, and the articular cartilage is smoothed to promote better joint function. The joint is subsequently flushed with sterile saline to remove any debris, ensuring a clean surgical site. Finally, the joint capsule is closed, followed by the closure of the overlying soft tissue and skin. This procedure is specifically coded as 26530 for each MCP joint treated with arthroplasty alone, distinguishing it from similar procedures that involve the implantation of a prosthetic joint, which is coded separately under CPT® Code 26531.