This modifier may be used to indicate that an E/M service or eye exam, which is performed on the same day as a minor surgery (000 or 010 global days) and which is performed by the surgeon, is significant and separately identifiable from the usual work associated with the surgery. Documen...
Modifier 59 is added to a procedure to distinguish a procedure as a different session, different surgery, different procedure, different site, different organ, separate incision, separate excision, or separate injury from the previously reported procedure that was performed on the same day by the sa...