HCPCS Code L1907: Ankle Orthosis, Supramalleolar with Straps, Custom Fabricated

HCPCS code L1907 covers a custom-fabricated ankle orthosis with straps to stabilize the foot and ankle, support mobility, and prevent tissue injury.

Use Code

## **What is HCPCS Code L1907?** HCPCS code L1907 describes an “Ankle orthosis, supramalleolar with straps, custom fabricated.” This code falls under the broader category of ankle foot orthoses and is used to identify a specific type of custom-fabricated orthosis designed to provide support above the malleoli (the bony prominences on each side of the ankle). The orthosis is typically prescribed when the lower limb lacks normal anatomical integrity due to conditions such as neuromuscular weakness, deformity, or instability. It helps restore normal anatomical integrity and function by controlling medial-lateral rotation, providing additional knee stability, and maintaining free motion ankle alignment when appropriate. Custom fabrication ensures that the orthosis fits the patient’s unique anatomy and clinical needs, distinguishing it from prefabricated or off-the-shelf devices. In clinical use, it may be indicated in complex cases where an ankle flexion contracture or plantar flexion contracture impairs mobility, or when knee ankle foot orthoses (KAFOs) are not required but some knee joint or subtalar stability is still needed. It can also assist in offloading pressure areas to help prevent heel pressure ulcers in patients with reduced sensation or tone. This HCPCS Level II code is used by Medicare and other payers to process claims for custom-fabricated supramalleolar orthoses, ensuring accurate reimbursement under the durable medical equipment benefit.

## **HCPCS code L1907 documentation requirements** Documentation for HCPCS code L1907 must clearly establish the medical necessity for providing a custom-fabricated supramalleolar ankle orthosis. Suppliers must maintain detailed clinical and technical records demonstrating why a custom device, rather than a prefabricated or off-the-shelf orthosis, was required. - Describe the patient’s condition indicating that the limb lacks normal anatomical integrity (e.g., neuromuscular weakness, deformity, or instability) and requires a rigid or semi-rigid orthosis for support. - Specify how the device restores normal anatomical integrity, limits or controls medial-lateral rotation, and provides additional knee stability or free motion ankle alignment when medically appropriate. - Include precise measurements, impressions, or digital scans showing custom fabrication work (vacuum forming, molding, or other manual adjustments). - Show that the orthosis aligns with the patient’s rehabilitation goals and prevents complications such as heel pressure ulcers or worsening of plantar flexion or ankle flexion contractures. - Maintain signed delivery receipts and patient education records on orthosis use and care.

## **HCPCS code L1907 billing requirements** Key billing considerations for this code include: - Bill L1907 only for a custom-fabricated supramalleolar ankle orthosis. Do not report it for prefabricated or off-the-shelf devices (e.g., L1906). - Bill one unit per orthosis supplied. For bilateral devices, submit RT and LT modifiers on separate claim lines, each with one unit of service. Claims using RTLT on a single line will be rejected. - Attach any required KX, GA, or GZ modifiers as applicable to denote medical necessity or coverage exceptions. - Payment follows the DMEPOS fee schedule applicable to the jurisdiction of the DME MAC processing the claim. Reimbursement covers the custom fabrication labor, materials, and fitting; related evaluation or therapy services must be billed separately under appropriate CPT codes.

## **Other relevant codes** Relevant HCPCS codes related to L1907 (ankle orthoses) include: - **L1900**: Spring wire, dorsiflexion assist calf band, custom fabricated - **L1904**: Ankle orthosis, ankle gauntlet or similar, with or without joints, custom fabricated - **L1906**: Ankle foot orthosis, multiligamentous ankle support, prefabricated, off-the-shelf - **L1910**: Ankle foot orthosis (AFO), posterior, single bar, clasp attachment to shoe counter, prefabricated, includes fitting and adjustment - **L1920**: Ankle foot orthosis (AFO), single upright with static or adjustable stop (phelps or perlstein type), custom-fabricated - **L1940**: Ankle foot orthosis (AFO), plastic or other material, custom-fabricated - **L1945**: Ankle foot orthosis (AFO), plastic, rigid anterior tibial section (floor reaction), custom-fabricated - **L4398**: Foot drop splint, recumbent positioning device, prefabricated, off-the-shelf - **L1950**: Ankle foot orthosis (AFO), spiral, (institute of rehabilitative medicine type), plastic, custom-fabricated - **L1960**: Ankle foot orthosis (AFO), posterior solid ankle, plastic, custom-fabricated - **L1970**: Ankle foot orthosis (AFO), plastic with ankle joint, custom-fabricated

Frequently asked questions

HCPCS Code L1907 is for a custom-fabricated ankle orthosis, supramalleolar with straps, designed to stabilize the ankle joint and foot.

The diagnosis code for an AFO (Ankle-Foot Orthosis) brace depends on the medical condition being treated. Still, common diagnosis codes related to AFO use include S93.411 (Sprain and strain of ankle calcaneofibular, right), S93.412 (left), M25.571 (Pain in ankle and joints of foot, right), and M24.871 (Other specific joint derangements of ankle, right).

The L code for a tibial fracture brace is L2114, which represents a dynamic ankle foot orthosis (AFO), semi-rigid and prefabricated, including fitting and adjustment. It is commonly used for managing tibial shaft fractures or protecting tibial defects after surgery or trauma. This prefabricated ankle foot orthosis provides medial-lateral rotation control to maintain alignment and support healing.