awerner
Guest
Can someone please explain the difference between modifer's 59 and 51? Im having a hard time understanding the difference between them and when its appropriate to use one instead of the other. From what I understand 51 has more to do with reimbursement percentage than anything else, maybe im just not understanding? For example, 23472 (total shoulder) and 23430 (bicpes tenodesis) on the NCCI edit states a modifier is allowed to differentiate between services but rejected with a -59. please help!