I25.1Atherosclerotic heart disease of native coronary artery

I25.1 is the ICD-10-CM diagnosis code for Atherosclerotic heart disease of native coronary artery. It belongs to category I25 (chronic ischemic heart disease), block I20-I25 (ischemic heart diseases) and chapter 9 (diseases of the circulatory system). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within I25 (chronic ischemic heart disease), I25.1 is specifically for Atherosclerotic heart disease of native coronary artery. Related codes cover old myocardial infarction (I25.2), aneurysm of heart (I25.3), coronary artery aneurysm and dissection (I25.4), ischemic cardiomyopathy (I25.5), Silent myocardial ischemia (I25.6), atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris (I25.7), other forms of chronic ischemic heart disease (I25.8) and unspecified (I25.9).

To report this condition, pick the subcode that matches the documentation: I25.10 (without angina pectoris) and I25.11 (with angina pectoris).

The conditions in its Excludes2 note aren't part of I25.1, but may be coded alongside it if the patient has both: atheroembolism (I75.-) and atherosclerosis of coronary artery bypass graft(s) and transplanted heart (I25.7-).

Use an additional code, if applicable, to identify: coronary atherosclerosis due to calcified coronary lesion (I25.84) and coronary atherosclerosis due to lipid rich plaque (I25.83). Use an additional code to identify: chronic total occlusion of coronary artery (I25.82), exposure to environmental tobacco smoke (Z77.22), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31), tobacco dependence (F17.-) and 1 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.