Review CMS’ definition of an OR before appending modifier 78
Question: I work for a group of general surgeons and quite often our patients are brought back into our office and taken to our patient rooms where an incision and drainage may be performed of a hematoma or a seroma. I have billing these with a 78 modifier. Now I am told that the 78 is used only if the patient is taken back to the hospital operating room.
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