Probably should be 93460-26. 93460-26 is when he does a right heart cath, coronary angiography, and crosses the aortic valve (always done when left ventriculography is performed, but they can also cross the aortic valve to check LV pressures etc if they don't want to use too much contrast &/or they already know about the LV function). Now if he did NOT cross the aortic valve with the cath, and they did do coronary angiography and right heart cath, only 93456-26 should be reported. The 93458-26 is a left heart cath with coronary angiography and crossing of the aortic valve. So when you report 93458-26 and 93456-26 together, you are contradicting yourself...because 93458-26 is crossing the aortic valve and 93456-26 is not crossing the aortic valve. Using a 59 modifier would not be appropriate if it was just the one procedure and the physician did do two separate procedures (ie went back to the OR a 2nd time). So if the physician does a right and left heart cath at the same time, if he crosses the AV, you'd use 93460-26; if he did not cross the AV, then just the 93456-26. The 93461-26 that you mentioned, would be if he did R & LHC crossing the AV, and also performed Bypass Graft Angiography. So in that case the patient would've had a CABG (Coronary Artery Bypass Graft) in the past. Good Luck!!