Summary & Overview
HCPCS S2068: Unilateral DIEP/SIEA Flap Breast Reconstruction
HCPCS Level II code S2068 describes unilateral autologous breast reconstruction using a deep inferior epigastric perforator (DIEP) flap or superficial inferior epigastric artery (SIEA) flap, including flap harvest, microvascular transfer, donor-site closure, and shaping. This code captures complex reconstructive microsurgery that affects hospital resource use, surgical scheduling, and post-operative care pathways nationally.
Key payers considered in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for autologous free-flap reconstruction, common sites of service (hospital operating room or ambulatory surgery center), and factors that drive authorization and coverage discussions for these procedures.
The publication provides benchmarks and policy-relevant information on coding and billing for S2068, highlights areas where coverage language commonly affects access to microsurgical reconstruction, and summarizes clinical considerations relevant to coding accuracy. Data not available in the input is noted where applicable. The material is intended for national audiences including coding professionals, surgical practices, and payers seeking clarity on procedural scope and typical service settings for this HCPCS Level II code.
Billing Code Overview
HCPCS Level II code S2068 represents breast reconstruction with deep inferior epigastric perforator (DIEP) flap or superficial inferior epigastric artery (SIEA) flap, unilateral. The procedure includes harvesting of the flap, microvascular transfer, closure of the donor site, and shaping the flap into a breast.
Service type: Autologous free flap breast reconstruction with microvascular transfer.
Typical site of service: Inpatient or outpatient hospital surgical setting or ambulatory surgery center, depending on clinical complexity and payer requirements.
Clinical & Coding Specifications
Clinical Context
A 48-year-old woman with a history of left-sided mastectomy for invasive ductal carcinoma elects delayed unilateral breast reconstruction using a deep inferior epigastric perforator (DIEP) flap. The surgical team includes a board-certified plastic surgeon and an anesthesiologist. Preoperative workup includes chest imaging, abdominal vascular mapping with CT angiography to evaluate perforator anatomy, lab testing, and medical clearance. On the day of surgery the patient undergoes general anesthesia, prophylactic antibiotics, and intraoperative Doppler monitoring of perforators. The procedure includes harvesting of the abdominal skin and fat on the deep inferior epigastric perforator vessels, microsurgical transfer of the flap to the chest, microvascular anastomosis to the thoracodorsal or internal mammary vessels, shaping of the flap to recreate breast contour, and layered closure of the abdominal donor site. The patient recovers in a post-anesthesia care unit with flap perfusion monitoring, then transfers to an inpatient unit for 1–3 days for pain control, flap checks, and mobilization. Follow-up visits include wound checks, assessment of flap viability, and potential staged revisions for symmetry or nipple reconstruction performed at a later date.
Coding Specifications
- Below are the most clinically relevant modifiers for
S2068with typical use.
| Modifier | Description | When to Use |
|---|---|---|
LT |