CPT® Code 15740

An island pedicle flap, as described by CPT® Code 15740, is a surgical procedure that involves the creation of a flap of tissue that retains its blood supply through an anatomically named axial vessel. This technique is essential for covering tissue defects, which may arise from trauma, surgical excision, or other medical conditions. The procedure begins with an incision through the skin and underlying subcutaneous tissues, typically made in a V or Y configuration, to facilitate the creation of the flap. The key aspect of this procedure is the identification and preservation of the axial vessel, which is crucial for maintaining the viability of the flap. Once the vessel is located, the dissection continues to mobilize the flap, allowing it to be transferred from the donor site to the recipient site. The flap can be advanced over the defect, which may require techniques such as rotation or tunneling beneath adjacent tissues to ensure proper coverage. After positioning the flap, it is secured with sutures, and any secondary defects created during the flap's transfer are also repaired. This meticulous approach ensures that the tissue defect is effectively covered while maintaining the integrity of the surrounding structures.