CPT® Code 20827

The procedure described by CPT® Code 20827 refers to the surgical replantation of a thumb that has been completely amputated, specifically between the distal tip of the thumb and the metacarpophalangeal (MP) joint. This complex surgical intervention is performed under general anesthesia to ensure the patient is comfortable and pain-free throughout the procedure. The process begins with the careful removal of any damaged tissue surrounding the amputation site, which is crucial for promoting healing and reducing the risk of infection. Following this, the ends of the amputated bones are meticulously trimmed to facilitate a more straightforward reattachment. This preparation is essential as it allows for better alignment and connection of the soft tissues that will be sutured together after the bones are rejoined. The surgical team then proceeds to reconnect the various structures, including arteries, veins, nerves, muscles, and tendons, which are vital for restoring function and sensation to the thumb. In cases where there is a lack of skin coverage, a graft may be utilized to protect the underlying structures. Additionally, any exposed nerves, tendons, and joints may require coverage through a free-tissue transfer, which includes its own blood supply via attached arteries and veins. Finally, the amputation site is closed in layers to ensure proper healing and to minimize scarring.