I have a medicare patient that was in post-op period of having prostate surgery. He began experiencing chest pain while still in hospital so an echo was done & determined he needed a heart cath w/intervention. Dr. did LHC w/angiograph, RT & LT angiography, PTCA of proximal LAD for 90% stenosis with balloon angioplasty & stent, PTCA of lst diagnonal for 80% stenosis with balloon & stent placement X2; 3rd lesion was mid LAD with 70% stenosis. Used pressure-derived flow reserve measurement & attempted balloon angioplasty X3 but could not open enough for stent placement. Plan is to bring patient back at later time for PCI of circumflex for 80% stenosis & possible mid anterior descending in 4 weeks. Diagnosis was Non ST elevated myocardial infarction & acute coronary syndrome. This was coded 93458-26-59, 92941-LD, 92941-59-LD & 93571. Can 92941 be coded twice for LAD & for diagonal? Should we have used 92928 & 92929 instead of 92941. It has been awhile since I have done cardiology, just need someone else's opinion. Did we miss any other coding?