Summary & Overview
HCPCS E1810: Dynamic Adjustable Knee Extension and Flexion Device
HCPCS Level II code E1810 represents a dynamic, adjustable knee extension and flexion device with soft interface material used in rehabilitation and orthotic care. This device supports controlled knee movement, aids recovery after injury or surgery, and assists patients with neuromuscular impairments. Nationally, coding for orthotic devices like E1810 matters because it affects access to durable medical equipment, billing consistency across settings, and payer coverage determinations that influence patient rehabilitation pathways.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The summary addresses payer coverage patterns, documentation expectations, and typical sites of service where the device is provided.
Readers will find benchmarks on common reimbursement and coverage considerations, an overview of clinical context for use of dynamic knee orthoses, and practical guidance on documentation elements that payers often require. The publication also outlines policy considerations that affect coverage decisions and highlights how the device is positioned within durable medical equipment and outpatient rehabilitation service lines. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code E1810 describes a dynamic adjustable knee extension and flexion device that includes soft interface material. The device is designed to provide controlled, adjustable assistance or resistance for knee extension and flexion movements, typically used in rehabilitation and orthotic management following injury, surgery, or for neuromuscular conditions.
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Service type: Durable medical equipment for knee joint support and rehabilitation
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Typical site of service: Outpatient clinic, outpatient rehabilitation facility, outpatient orthotics/prosthetics clinic, or patient's home when supplied as durable medical equipment
Clinical & Coding Specifications
Clinical Context
A 54-year-old patient presents to an outpatient orthotics clinic three weeks after a tibial plateau fracture treated nonoperatively with a hinged knee brace and limited range-of-motion protocols. The patient demonstrates persistent knee extension and flexion weakness with early quadriceps inhibition and ongoing joint stiffness limiting progress in physical therapy. The orthotist evaluates the patient and prescribes a dynamic adjustable knee extension and flexion device to provide controlled, progressive motion and a soft interface for skin protection.
The clinical workflow: the orthopedist documents the indication and medical necessity in the chart and writes a prescription for the dynamic adjustable knee device. The patient is referred to an orthotics vendor, who performs a fit assessment, documents measurements and skin status, fabricates or adjusts the device to the correct dynamic tension settings, and provides patient education on wear schedule and progressive adjustments. Follow-up visits occur within 1–4 weeks to assess range of motion, skin integrity, and device adjustments; documentation includes objective ROM measures, patient tolerance, and continued necessity for the device for rehabilitation goals.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | When the device is furnished for the left knee |