hi there. my dentist performed procedure 15574 on 03/21/23 and then on 04/04/23 he made bone grafting. i submit claims to NJ Medicare on procedure 15574 i did not performed any modifiers, but on procedure 21215 i used M 52 and 79. Medicare denied code 21215 for those modifiers. my question for you, if I used correct modifiers or i need use just M52 for it.
