CPT® Code 15620

Delay of flap or sectioning of flap (division and inset); at forehead, cheeks, chin, neck, axillae, genitalia, hands, or feet

The CPT® Code 15620 pertains to the surgical procedure known as the delay of flap or sectioning of flap, specifically performed on anatomical sites including the forehead, cheeks, chin, neck, axillae, genitalia, hands, or feet. The term "delay of flap" refers to a surgical technique that involves a staged division of the flap to improve its vascular supply, thereby enhancing the viability of the tissue that will be used for reconstruction. This technique is often employed to ensure that the flap receives adequate blood flow before it is fully detached and repositioned. Conversely, "sectioning of flap" involves the complete transection of the flap, followed by its inset at the recipient site where it will be utilized to cover a defect. During the delay maneuver, the pedicle, which is the base of the flap that contains its blood supply, is partially divided. This action promotes better circulation to the flap tissue, making it more robust for subsequent surgical steps. Once the flap is sectioned, the surgeon will complete the inset and closure of the defect at the recipient site. Any portion of the flap that is not utilized is returned to the donor site. In cases where the donor site has been closed with a skin graft, the graft may be removed and replaced with the remaining flap tissue. If additional coverage is necessary at the donor site, a separate skin graft or local flap may be applied. It is important to note that specific codes are designated for different anatomical locations, with CPT® Code 15620 specifically reserved for procedures involving the aforementioned areas of the body.