Summary & Overview

CPT 15740: Island Pedicle Flap for Local Soft-Tissue Reconstruction

CPT code 15740 designates the surgical creation of an island pedicle flap — a local soft-tissue reconstruction that preserves a named vascular pedicle to transfer well-perfused tissue into a wound or defect. The code is used across reconstructive and wound-care practices and matters nationally because it documents a distinct, resource-intensive operative technique associated with complex wound management and plastic or reconstructive surgery.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for when the code is used, typical sites of service, and common billing considerations. The publication summarizes benchmark payment and coverage themes, highlights relevant coding and documentation points for accurately reflecting surgical complexity, and outlines potential policy updates and payer approaches that affect authorization and reimbursement pathways. The goal is to provide clinicians, coders, and policy stakeholders with a clear, national-level reference on the clinical intent and administrative handling of CPT code 15740.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 15740island pedicle flapreconstructive surgerysoft-tissue reconstructionoperative codingwound managementsurgical procedureplastic surgeryambulatory surgery center

Billing Code Overview

CPT code 15740 describes the creation of an island pedicle flap, a surgical soft-tissue reconstruction technique in which healthy skin and subcutaneous tissue are incised around a donor site, elevated while maintaining a named vascular connection, and transposed to cover a wound or injury. The procedure preserves a dedicated blood supply through a pedicle, making it suitable for defects requiring robust perfusion and durable soft-tissue coverage.

Service type: Surgical soft-tissue reconstruction (local pedicled flap)
Typical site of service: Operative setting such as an outpatient surgery center or hospital operating room, depending on wound complexity and patient needs.

Clinical & Coding Specifications

Clinical Context

A 58-year-old male presents with a non-healing traumatic soft-tissue defect of the lower leg after debridement for an infected laceration. The wound exposes subcutaneous tissue with viable surrounding skin and a reliable named pedicle (e.g., an inferior genicular perforator). The reconstructive surgeon assesses wound size, vascular supply, and donor-site laxity and determines an island pedicle flap is appropriate to provide durable, well-vascularized coverage while preserving local tissue match.

Preoperative workflow includes history and focused vascular exam, marking the donor island based on the identified perforator vessel, photographic documentation, and informed consent specifying potential complications. In the operating room under regional or general anesthesia, the surgeon incises around the donor skin island, elevates the flap on its pedicle, tunnels or transfers it into the defect, and secures it with layered closure. Postoperative workflow includes flap perfusion monitoring, pain control, wound care instructions, and scheduled follow-up for suture removal and reassessment of viability and donor-site healing. Typical site of service is an outpatient ambulatory surgery center or hospital operating room for cases requiring monitoring or concomitant procedures.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when work or complexity of the island pedicle flap is substantially greater than usual (extensive undermining, significant scarring).
`59`	Distinct procedural service	Use when an island pedicle flap is reported with a separate, unrelated procedure at a different anatomic site or distinct service on the same date.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons performing portions of the pedicle flap reconstruction.
`52`	Reduced services	Use when the flap procedure is partially reduced or not completed as planned.
`53`	Discontinued procedure	Use when the planned island pedicle flap is aborted after initiation due to intraoperative complication.
`76`	Repeat procedure by same physician	Data not provided in list; not used to comply with input restrictions.
`78`	Unplanned return to the operating room for a related procedure during the postoperative period	Use when the patient requires immediate reoperation for flap compromise or hematoma evacuation.
`79`	Unrelated procedure or service by the same physician during the postoperative period	Use when an unrelated, separate procedure is performed during the global period.
`50`	Bilateral procedure	Use when island pedicle flaps are performed bilaterally in the same operative session.
`26`	Professional component	Rarely used for surgical procedures; include only when billing separate professional component for diagnostic imaging or interpretation related to planning.
`TC`	Technical component	Use when billing only the facility/technical component of an adjunct imaging or monitoring service tied to the procedure.
`59`	Distinct procedural service	Duplicate row avoided; already listed above.
`LT`	Left side	Use when the flap is performed on the left anatomical site.
`RT`	Right side	Use when the flap is performed on the right anatomical site.

Taxonomy Code	Specialty	Notes
`207LH0000X`	Plastic Surgery	Plastic and reconstructive surgeons commonly perform island pedicle flaps for soft-tissue coverage.
`2080P0222X`	General Surgery	General surgeons with reconstructive experience perform local flaps in trauma or oncologic resections.
`207L00000X`	Otolaryngology–Head & Neck Surgery	Head and neck surgeons perform local flaps for facial and scalp defects.
`207XR0400X`	Surgical Oncology	Surgical oncologists perform flaps in management of tumor resection defects.
`2084P0800X`	Dermatology	Dermatologic surgeons perform local flap reconstructions for skin cancer defects on trunk and extremities.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`L98.4`	Non-healing ulcer, unspecified	Common indication for pedicle flap coverage when local tissue is required for wound closure.
`S81.81XA`	Open wound of other part of lower leg, initial encounter	Traumatic soft-tissue defects of the lower leg frequently require local flap reconstruction.
`T81.31XA`	Disruption of external operation (due to infection), initial encounter	Postoperative wound complications may necessitate flap coverage for durable closure.
`C44.31`	Squamous cell carcinoma of skin of lower limb, including hip	Defects after oncologic resection of skin cancers on extremities often require pedicle flaps.
`L08.9`	Local infection of skin and subcutaneous tissue, unspecified	Infected wounds after debridement may be reconstructed with an island pedicle flap once infection is controlled.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`15740`	Island pedicle flap	Primary code describing creation of an island pedicle flap; used for local tissue transfer with maintained vascular pedicle.
`14000`	Adjacent tissue transfer or rearrangement, trunk; defect 10 sq cm or less, first operative field	Used for smaller adjacent tissue transfers; may be an alternative when island pedicle flap is not required.
`15260`	Full-thickness graft, free, including direct closure of donor site, forehead, cheeks, chin, mouth, neck, eyelids, nose, ears, genitalia, hands, or feet; 30 sq cm or less	Used when a skin graft is chosen instead of a pedicle flap for coverage of similar defects.
`13131`	Secondary closure of surgical wound, with tissue flap or skin graft; scalp, arms, and/or legs; 10 sq cm to 30 sq cm	Related when flap closure requires additional complex closure techniques.
`12032`	Repair, intermediate, wounds of scalp, axillae, trunk and/or extremities; 2.6 cm to 7.5 cm	Used for closure of donor-site or adjacent wound components in the same operative session.
`20550`	Injection, therapeutic, non-bony, single or multiple trigger points; additional code for local injections	May be used postoperatively for pain management adjuncts but not typically billed with reconstruction.