Summary & Overview
CPT 28107: Excision of Tarsal/Metatarsal Bone Cyst with Allograft
CPT code 28107 represents surgical removal of a bone cyst or benign tumor in the tarsal or metatarsal region with implantation of an allograft. This code captures a combined orthopedic procedure that addresses both lesion excision and biologic reconstruction, and is relevant to payers and providers managing surgical care for foot bone lesions across the U.S. Nationally, the code matters because it informs coverage determinations, facility and professional payment, and utilization tracking for foot-sparing reconstructive interventions.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and typical sites of service, common modifiers associated with surgical billing when available, and how the code is used in procedural reporting. The content highlights benchmarks and policy-relevant considerations such as appropriate setting (ambulatory surgical center versus inpatient hospital), the combined nature of excision plus allograft reporting, and factors that affect coding choices and payer adjudication.
The summary is intended for a national audience of clinicians, coding professionals, and policy analysts seeking a clear briefing on CPT code 28107, including clinical scope and payer coverage landscape. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 28107 describes the surgical removal of a bone cyst or benign tumor located in the tarsal or metatarsal region of the foot, followed by implantation of an allograft. The procedure combines lesion excision with biologic reconstruction to restore bone integrity.
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Service type: Orthopedic surgical procedure (excision and allograft implantation)
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Typical site of service: Hospital outpatient department or ambulatory surgical center; may also be performed in an inpatient hospital setting depending on clinical complexity and patient needs.
Clinical & Coding Specifications
Clinical Context
A 28-year-old patient presents with persistent forefoot pain and progressive swelling over the dorsum of the midfoot. Imaging (radiographs and MRI) demonstrates a benign-appearing unicameral bone cyst centered within the second metatarsal with cortical thinning but no obvious pathologic fracture. The orthopedic foot and ankle surgeon schedules operative management: excision/curettage of the bone cyst or benign tumor in the metatarsal region with placement of an allograft bone graft to fill the defect and restore structural integrity.
Preoperative workflow includes history and physical, informed consent, preoperative imaging review, and anesthesia evaluation. Intraoperative steps typically include regional or general anesthesia, exposure of the metatarsal, cyst excision and curettage, irrigation, sizing and placement of structural or morselized allograft into the defect, and closure. Postoperative care includes immobilization in a boot or cast, weight‑bearing restrictions, pain management, and radiographic follow-up to assess graft incorporation and detect recurrence. Typical site of service is an ambulatory surgery center or hospital outpatient surgical suite. The service type is surgical — open excision and allograft implantation of a tarsal or metatarsal lesion.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | When the procedure is performed on the left foot |