ICD-10-CM > I00-I99 > I20-I25 > I25 > I25.8 > I25.81 I25.81 Atherosclerosis of other coronary vessels without angina pectoris Non-Billable/Non-Specific Use Additional code, if applicable, to identify:coronary atherosclerosis due to calcified coronary lesion (I25.84)coronary atherosclerosis due to lipid rich plaque (I25.83) Type 2 Excludes atherosclerotic heart disease of native coronary artery without angina pectoris (I25.10) Codes I25.810Atherosclerosis of coronary artery bypass graft(s) without angina pectorisI25.811Atherosclerosis of native coronary artery of transplanted heart without angina pectorisI25.812Atherosclerosis of bypass graft of coronary artery of transplanted heart without angina pectoris