Summary & Overview

CPT 15610: Division of Pedicled Flap and Graft Inset

CPT code 15610 represents surgical division of a previously created pedicled flap with completion of graft inset and repair of the remaining wound, typically performed on the scalp, arms, or legs. This reconstructive procedure is important nationally for managing staged flap reconstructions after initial flap transposition, finalizing vascularized tissue transfer and restoring form and function. It is used across hospital operating rooms and ambulatory surgical centers and has implications for surgical planning, facility utilization, and postoperative care.

Key payers in the national analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context on the nature of the procedure, expected sites of service, and common operational considerations. The publication also provides benchmarking context where available, outlines pertinent coding relationships, and summarizes policy and coverage themes affecting flap division and graft inset procedures. Data not available in the input will be noted explicitly where relevant.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 15610pedicled flapflap divisiongraft insetreconstructive surgeryscalp surgeryupper extremitylower extremity

Billing Code Overview

CPT code 15610 describes the surgical division of a previously created pedicled flap from its base with completion of the inset of the graft and repair of the donor or remaining wound. The procedure typically involves final separation of the flap that was transposed on a vascular pedicle and securing the graft into its recipient site.

Service type: Reconstructive soft-tissue surgery involving flap division and graft inset
Typical site of service: Ambulatory surgical center or hospital operating room for procedures on the scalp, arm(s), or leg(s)

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 62-year-old male with a prior staged reconstruction for a large full-thickness scalp defect presents for the second-stage procedure. The initial operation created a pedicled rotational scalp flap to cover exposed calvarium after oncologic resection; the flap remained attached at its vascular pedicle to maintain perfusion. On the scheduled return to the operating room, the surgeon divides the flap base (take-down of the pedicle), completes final inset of the flap into its definitive position on the scalp, and repairs the residual donor-site wounds on the adjacent scalp and forehead. The procedure is performed in an ambulatory surgery center or hospital operating room under general anesthesia, with preoperative marking, intraoperative assessment of flap perfusion, meticulous hemostasis, layered closure, and postoperative dressing and drainage as indicated. Typical workflow includes preop evaluation, anesthesia induction, operative take-down and inset, any necessary revision of flap edges or debulking, closure of donor defects, postoperative monitoring in PACU, and discharge planning with wound care instructions and follow-up for flap surveillance.

Coding Specifications

Modifier	Description	When to Use
`LT`	Left side	Use when the procedure is performed on the left scalp/arm/leg to indicate laterality
`RT`

Taxonomy Code	Specialty	Notes
`208100000X`	Plastic Surgery	Primary specialty performing pedicled flap takedown and inset and donor-site repair
`2083P0800X`	General Surgery	General surgeons performing reconstructive scalp/limb flaps in trauma or oncologic cases
`207L00000X`	Otolaryngology (ENT)	ENT/head & neck surgeons performing scalp and forehead reconstructions
`208000000X`	Dermatology	Dermatologic surgeons may perform staged flap reconstruction for skin cancer defects
`363LP0800X`	Vascular Surgery	Vascular surgeons may be involved when limb perfusion or vascular repair is a concern

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S01.83XA`	Other open wound of scalp, initial encounter	Scalp defects requiring staged pedicled flap reconstruction and later pedicle division
`C44.111`	Basal cell carcinoma of skin of scalp and neck	Malignant skin tumor resection may necessitate pedicled flap reconstruction and subsequent take-down
`C44.112`	Squamous cell carcinoma of skin of scalp and neck	Post-oncologic resection resulting in large defects managed with pedicled flaps
`T81.31XA`	Disruption of external surgical wound, initial encounter	Used if the patient presents with wound dehiscence requiring flap revision and pedicle division
`L98.8`	Other specified disorders of the skin and subcutaneous tissue	Chronic non-healing wounds or soft tissue defects requiring staged flap reconstruction

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`15120`	Split-thickness skin graft; trunk, arms, legs; initial or subsequent donor site	May be performed to graft the donor site after flap elevation or to cover adjacent defects following flap inset
`13131`	Repair, complex, scalp, arms, and/or legs; 2.6 cm to 7.5 cm	May be used for repair of residual wound edges or secondary closures adjacent to the flap site
`15734`	Muscle or myocutaneous flap with microvascular anastomosis (note: free flap)	Represents an alternative reconstructive option; not the same as pedicled flap take-down but part of reconstructive algorithm
`13132`	Repair, complex, scalp, arms, and/or legs; each additional 5 cm or less (List separately in addition to code for primary closure)	Used when additional complex closure length is required at the donor or recipient site
`12032`	Repair, intermediate, wounds of scalp, arms, legs; 2.6 cm to 7.5 cm	May be used for layered closure of smaller adjacent wounds during the same operative session
`14060`	Adjacent tissue transfer or rearrangement, trunk, arms, or legs; first flap or island flap	Performed when additional local flap rearrangement is required in conjunction with the pedicled flap inset