Summary & Overview
HCPCS L2108: Ankle Foot Fracture Orthosis, Custom-Fabricated
HCPCS Level II code L2108 denotes a custom-fabricated ankle foot orthosis used as a fracture orthosis or tibial fracture cast orthosis. The code applies to individualized orthotic devices created to immobilize and support the tibia and ankle during fracture healing. Nationally, this code matters because custom orthoses impact clinical outcomes, device costs, and durable medical equipment billing protocols for post-fracture care.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for use of a custom-fabricated tibial fracture cast orthosis, typical sites of service where the device is furnished, and the common procedural and billing considerations tied to this HCPCS Level II code.
This publication summarizes benchmark considerations, payer coverage patterns, and coding context relevant to facilities and suppliers billing for custom fracture orthoses. It also highlights where data is available and where input data was not provided for deeper detail. The goal is to give clinicians, billing professionals, and policy analysts a clear, national-level briefing on HCPCS Level II code L2108 and its role in post-fracture orthotic care.
Billing Code Overview
HCPCS Level II code L2108 describes a custom-fabricated ankle foot orthosis (AFO) designed as a fracture orthosis or tibial fracture cast orthosis. This device is intended to provide immobilization and support for lower-leg and ankle fractures, with customization to the patient's anatomy and injury.
Service type: Custom-fabricated orthotic device (Ankle-Foot Orthosis / Fracture Orthosis)
Typical site of service: Outpatient orthotics/prosthetics clinic, hospital outpatient department, or specialty orthopedic practice
Clinical & Coding Specifications
Clinical Context
A 42-year-old male presents to an orthopedic clinic after sustaining a distal tibial/fibular fracture during a fall from a ladder. Imaging confirms a non-displaced distal tibial fracture that can be managed nonoperatively. The orthotist and orthopedic surgeon determine that a custom-fabricated ankle foot orthosis designed as a tibial fracture cast orthosis is appropriate to immobilize the ankle and distal tibia while allowing limited ambulation. The orthotist performs a custom casting, fabrication, and fitting visit to create L2108 (Ankle foot orthosis, fracture orthosis, tibial fracture cast orthosis, custom fabricated). Initial evaluation includes measurement, impression casting or digital scanning, selection of materials, and documentation of medical necessity referencing the fracture diagnosis. A fitting visit is scheduled to adjust fit, add padding, and instruct the patient on wear time and skin checks. Follow-up visits with the orthopedist assess fracture healing; the custom AFO may be modified or discontinued as radiographic healing permits. Typical sites of service include hospital outpatient orthopedic clinics, ambulatory surgical centers when provided postoperatively, and outpatient orthotics/prosthetics clinics.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | Use when the orthosis is applied to the left lower extremity |