Summary & Overview
CPT 27712: Tibial and Fibular Osteotomy with Intramedullary Rod
CPT code 27712 represents a corrective lower-extremity orthopedic procedure: multiple segment osteotomies of the tibia and fibula with placement of an intramedullary rod to correct alignment and treat deformities such as malunion, limb-length discrepancy, genu valgum, and genu varum. This code captures complex reconstructive work on the tibia/fibula that can have significant implications for surgical planning, facility utilization, and bundled payment arrangements nationwide. Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context about when the procedure is used, typical sites of service, and the procedural focus on alignment correction via intramedullary fixation. The publication also provides benchmarking information and policy-relevant considerations for payers and providers, including common modifier usage and implications for billing workflows. The content is intended to help payers, provider billing teams, and health policy analysts understand where 27712 fits within orthopedic surgical coding, expected care settings, and the visibility of this procedure in national payment systems. Data not available in the input is noted where specific payer coverage policies, diagnosis pairings, and related codes would normally be detailed.
Billing Code Overview
CPT code 27712 describes an operative procedure in which the provider makes multiple osteotomies of the tibia and fibula and inserts an intramedullary rod to correct alignment and treat deformities. Indications include malunion of a fracture, unequal leg length, genu valgum ("knock knee"), and genu varum (inward or outward bending of the knee toward or away from the midline).
Service type: Orthopedic corrective osteotomy with intramedullary fixation.
Typical site of service: Inpatient or outpatient hospital operating room or ambulatory surgery center, depending on patient complexity and perioperative needs.
Clinical & Coding Specifications
Clinical Context
A 34-year-old patient presents with symptomatic malunion of a tibial shaft fracture after nonoperative management. The patient reports chronic knee malalignment, limp, and unequal leg lengths causing functional impairment. Imaging demonstrates multiplanar deformity of the tibia with associated fibular deformity and a 2.5 cm limb-length discrepancy. The orthopedic surgical team schedules a corrective osteotomy with intramedullary rod fixation to restore alignment and leg length.
Preoperative workflow includes history and physical, surgical consent, templating with long-leg alignment radiographs, and planning for possible fibular osteotomy. Intraoperative steps include exposure, multiple segmental tibial and fibular osteotomies as indicated, reaming of the tibial canal, insertion and locking of an intramedullary rod to correct alignment, and intraoperative fluoroscopy to confirm reduction and hardware position. Postoperative care involves pain control, DVT prophylaxis, wound checks, weight-bearing instructions based on fixation stability, and serial radiographs to monitor healing and alignment. Typical site of service is an inpatient or ambulatory surgical center setting depending on case complexity and patient comorbidities; anesthesia is commonly general or regional block.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
RT | Right side | Use when the procedure is performed on the right lower extremity. |