denial on 36415

I recently rec'd a denial on 36415 as bundling w/85610 on a claim. The patient was in for a routine physical and the doc did an INR ck (pt has history of DVT,) in the office and drew blood as part of the physical. Should I have put a modifier, is it 51, or a different diagnosis code for the blood draw? Any advice?
Thanks

Jul 16th, 2011 -

re: denial on 36415

Did you do a finger stick INR? that is not a venipuncture. You should link the venipuncture to the ICD for something else.