CPT® Code 27692

Add-On Code

Transfer or transplant of single tendon (with muscle redirection or rerouting); each additional tendon (List separately in addition to code for primary procedure)

The procedure described by CPT® Code 27692 involves the transfer or transplant of a single tendon in the lower leg, specifically when additional tendons are involved in the surgical intervention. This procedure is typically performed to restore function that may have been compromised due to traumatic injuries affecting the nerve, tendon, or muscle. In some cases, the loss of function may also arise from conditions such as rheumatoid arthritis or gouty arthritis. The surgical approach can vary significantly based on the specific function that the surgeon aims to restore. For instance, the anterior tibial extensors are commonly transplanted into the midfoot to enhance mobility and function. The process begins with a longitudinal incision over the donor tendon, allowing for exposure and subsequent harvesting of the tendon, often accompanied by a strip of periosteum to ensure proper attachment at the recipient site. The muscle is also carefully freed from its fascial attachments to maximize the tendon’s mobility and length during the transfer. A second incision is made at the recipient site where the tendon will be anchored. The donor tendon is then routed to this site and temporarily secured with sutures. A neuromuscular stimulator is employed to assess the function of the donor tendon, and adjustments are made to ensure optimal tension before permanent fixation. After the surgical wounds are closed, immobilization of the ankle and foot may be necessary to facilitate recovery. This code is specifically used when more than one tendon is transferred or transplanted during the same surgical session, indicating the complexity and extent of the procedure being performed.