Summary & Overview
CPT 26551: Reconstruction of Thumb Using Great Toe Transfer
CPT code 26551 represents microsurgical reconstruction of a congenitally absent or traumatically amputated thumb using a great toe transfer. This complex reconstructive procedure restores thumb form and critical hand function by transplanting the toe with its neurovascular and musculoskeletal components and securing it to the hand with bone grafting. Nationally, the code matters because it captures high-complexity, resource-intensive microsurgery that has implications for surgical resource planning, reimbursement policy, and outcomes reporting.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and service setting, common payer coverage considerations, and benchmarks where available. The publication highlights procedural characteristics that influence coding and billing, such as the reconstructive and microsurgical nature of the service, and summarizes policy updates and coverage themes relevant to complex limb reconstruction.
The report is intended to help billing staff, hospital administrators, and surgical teams understand how CPT code 26551 maps to clinical practice and payer coverage considerations, the typical settings in which the service is delivered, and the types of documentation and coding clarity that commonly accompany high-complexity reconstructive microsurgery.
Billing Code Overview
CPT code 26551 describes reconstruction of a missing thumb using a great toe transfer. The procedure involves harvesting the great toe with its blood vessels, nerves, bones, and tendons and transplanting it to the hand with bone grafting to recreate a functional thumb.
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Service type: Surgical reconstructive procedure (microsurgical toe-to-thumb transfer)
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Typical site of service: Inpatient or outpatient surgical setting, typically performed in an operating room with microsurgical capability
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult or adolescent with complete absence of the thumb due to traumatic amputation or congenital aplasia, presenting with significant loss of pinch and prehension. The patient has undergone preoperative evaluation including vascular assessment of both the injured hand and donor foot, radiographic imaging of the hand and foot, and multidisciplinary planning with hand surgery, plastic/reconstructive surgery, anesthesia, and physical therapy. The planned operation is a great toe (or second toe) transfer with microvascular anastomosis and bone grafting to reconstruct a functional thumb.
Preoperative workflow includes informed consent, optimization of comorbidities, and documentation of the nonfunctional or absent thumb (photographs and measurements). Intraoperative workflow involves harvest of the toe with its vascular pedicle, nerves, tendons, and bone; preparation of the recipient site on the hand (including any required bone grafting and fixation); microvascular arterial and venous anastomoses; tendon and nerve coaptations; and flap monitoring. Postoperative care includes inpatient monitoring for vascular compromise, pain control, wound care, anticoagulation per protocol, early occupational therapy for positioning and range of motion, and staged follow-up for possible revision, debulking, or prosthetic fitting.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
62 | Two surgeons | When two surgeons work together as primary surgeons during complex reconstruction requiring dual attending surgeons. |