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.
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.
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Service type: Reconstructive soft-tissue surgery involving flap division and graft inset
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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 | Right side | Use when the procedure is performed on the right scalp/arm/leg to indicate laterality |
59 | Distinct procedural service (note: not in provided list) | Data not available in the input. |
52 | Reduced services | Use if the procedure is partially discontinued or performed at less than full service |
53 | Discontinued procedure | Use if the procedure was started but terminated due to extenuating circumstances |
62 | Two surgeons | Use when two surgeons work together as primary surgeons on separate portions of the procedure |
66 | Surgical team approach | Use when a certified surgical team performs the procedure (multiple team members billing) |
78 | Unplanned return to the OR following initial procedure | Use when the patient returns to the OR for a complication related to the original surgery during the global period |
79 | Unrelated procedure during global period (note: not in provided list) | Data not available in the input. |
22 | Increased procedural services | Use when work or time is substantially greater than typical for this code (document rationale) |
23 | Unusual anesthesia | Use when general anesthesia is required for a procedure that is usually done under local/regional anesthesia |
50 | Bilateral procedure | Use when identical procedures are performed on both sides; apply per payer policy |
80 | Assistant surgeon | Use when an assistant surgeon (not co-surgeon) assists during the procedure |
AS | Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery | Use when an advanced practice clinician legally assists and the payer accepts AS |
TC | Technical component | Use when billing only the technical component of the service (rare for surgical CPTs) |
| 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 |