Right and Left Modifiers in DME billing - EY modifier

Right and Left Modifiers

The RT and LT modifiers are used in reference to many different policies. Consult these policies for the proper use of the RT and LT modifiers:

•    Ankle-Foot/Knee-Ankle-Foot Orthosis
•    External Breast Prosthesis
•    Eye Prosthesis
•    Facial Prosthesis
•    Lower Limb Prosthesis
•    Orthopedic Footwear
•    Refractive Lenses
•    Surgical Dressings
•    Therapeutic Shoes for Persons with Diabetes
•    Wheelchair Option/Accessories

EY Modifier-No Doctor's Order on File

The EY modifier indicates a supplier does not have a doctor's order for an item or service. A supplier must have an order from the treating physician before dispensing any DMEPOS item to a beneficiary.