AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2021 Issue 3; Ask the Editor

Left Internal Mammary Artery Free Graft between Obtuse Marginal Saphenous Vein Graft and Left Anterior Descending Artery

A patient with coronary artery disease presents for three-vessel aortocoronary artery bypass graft surgery. After sternotomy, reverse saphenous vein aortocoronary anastomoses were completed from the ascending aorta to the right coronary artery (RCA) and to the obtuse marginal (OM) artery. After obtaining a left internal mammary artery (LIMA) free graft, the distal end of the graft was anastomosed to the left anterior descending artery (LAD) and the proximal end was anastomosed to the hood of the completed vein graft anastomosis at the OM. What is the appropriate qualifier value for bypass grafting using the LIMA as a free graft between the LAD and the OM vein graft? ...

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