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I work for two Plastic/Reconstructive surgeons and they bill quite frequently for breast reconstructions. I have finally got them to stop using modifier -50 on these codes as they are bilateral to begin with, but we cannot agree on how to bill the codes if the procedure was only done on one breast. They say to use either -RT or -LT depending on which breast they did the surgery on. I say to use modifier -52 for reduced services. Who is correct? Or does it depend on insurance preference? Or would you code both the -52 and either the -RT or -LT?? Help!!!