This is my first time using a locum, she is filling in for my audiologist. I am using modifier Q6 attached to CPT 92557 & CPT 92567 and I am getting denial from Medicare reason code 4 – The procedure code is inconsistent with the modifier used or required modifier is missing. Do I need a second modifier? I can not find any current info on the Medicare website & what I do find is not clear. Any help would be greatly appreciated!