It's not always a matter of getting paid. As long as the codes are valid the insurance will pay in whatever order you put them. you want to check your RVU's, if there is a significant difference in RVU's, you want your highest to go first. you get reimbursed 100% for your first, when you use the 59 modifier, your second is dropped in value (I can't remember what reimbursement is), but say 75%, then for your third procedure it's dropped again. On down the line. So, you want your highest RVU's first, down to the least for maximum reimbursement.