HCPCS Code L3923: Hand Finger Orthosis, Without Joints (Prefabricated, Custom-Fitted)

A hand finger orthosis is designed to provide immobilization and support following an injury or medical condition affecting the arms or hands. It helps reduce unwanted motion, stabilizes the affected body part, and may use materials such as metal, pads, or spring components to enhance comfort.

For Medicare or other payers to approve payment, providers must include a clear description of the orthosis, clinical justification, and supporting evidence such as X-rays, measurements, or physician notes that show why the device is reasonable and medically necessary.

Yes. Orthotic devices under this code may require repair or replacement due to normal wear, changes in strap length, or adjustments needed to maintain proper use. Medicare follows reasonable useful lifetime (RUL) rules, typically five years, unless the device is lost, stolen, or irreparably damaged. These services are covered if properly documented.