Our radiation oncologists are currently billing out 77781-77784 for Brachytherapy. The doctors are questioning why they cannot bitt out a separate code to replace the source (C1717/Q3001). since they are doing the procedure in the clinic and own the equipment, we are looking for documentation that states payment for the global code includes maintenance of the equipment/replacement of the source. Is there anyone that can help me with this. I know nothing about radiation oncology. Thanks, Lynn Kimsey, CPC