Summary & Overview
CPT 27700: Ankle Joint Reconstruction
CPT code 27700 represents surgical reconstruction of the ankle joint performed to address arthritis or post-fracture deformity. Nationally, this code captures complex orthopedic procedures with implications for surgical resource use, postoperative care pathways, and durable medical equipment needs. The code is relevant to hospital and ambulatory surgery billing, claims adjudication, and quality measurement related to lower extremity reconstruction.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for ankle reconstruction, typical sites of service, and common billing considerations. The publication outlines benchmarks for utilization and payment where available, highlights recent policy or coding guidance affecting coverage and prior authorization practices, and summarizes documentation elements that commonly influence claim outcomes.
This summary is intended for national audiences including coding professionals, hospital and surgical administrators, and orthopedic clinicians seeking a concise reference for CPT code 27700 and its role in surgical management of ankle arthritis and fracture-related joint damage.
Billing Code Overview
CPT code 27700 describes reconstruction of the ankle joint to treat conditions such as arthritis or sequelae of fracture. The procedure involves surgical reconstruction techniques aimed at restoring ankle joint function and alleviating pain when conservative care is insufficient.
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Service type: Surgical orthopedic procedure
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Typical site of service: Inpatient hospital or ambulatory surgical center (operative setting)
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Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with end-stage post-traumatic ankle arthritis presents with chronic pain, deformity, and impaired ambulation despite conservative care (immobilization, NSAIDs, steroid injection, physical therapy). Imaging demonstrates severe tibiotalar joint degeneration with joint space loss and osteophyte formation. The orthopedic foot and ankle surgeon schedules an ankle joint reconstruction procedure (27700) in an ambulatory surgery center or hospital outpatient surgery unit under general or regional anesthesia. Preoperative workup includes history and physical, radiographs or CT for surgical planning, anesthesia evaluation, and informed consent. Intraoperatively, the surgeon performs joint debridement, osteophyte removal, realignment, and fixation or arthroplasty components as indicated by the pathology. Postoperative workflow includes recovery unit monitoring, weight-bearing instructions or immobilization, postoperative analgesia, and outpatient follow-up for wound check and rehabilitation with progressive range-of-motion and strengthening therapy.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
50 | Bilateral Procedure | When both ankles are reconstructed during the same operative session |
LT |