I work hospital medical records. I have a patient who came in for pre op labs few days prior to surgery. I coded the reason she came in, V72.63...which is what we do, then I coded the reasons for the surgery. Surgeon called and insisted we code the reason for surgery first, then the V72.63. (Patient's Ins will not pay if V code is primary) I cannot get a true answer on this.........??Any experts out there can help us? Thanks! 