I25.81Atherosclerosis of other coronary vessels without angina pectoris

I25.81 is the ICD-10-CM diagnosis code for atherosclerosis of other coronary vessels without angina pectoris. 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 3 subcodes must be used instead.

Within I25.8, choose I25.81 (Atherosclerosis of other coronary vessels without angina pectoris) only when documentation doesn't support a more specific option: chronic total occlusion of coronary artery (I25.82), coronary atherosclerosis due to lipid rich plaque (I25.83), coronary atherosclerosis due to calcified coronary lesion (I25.84), chronic coronary microvascular dysfunction (I25.85) and other forms of chronic ischemic heart disease (I25.89).

To report this condition, pick the subcode that matches the documentation: I25.810 (pectoris), I25.811 (pectoris) and I25.812 (pectoris).

The conditions in its Excludes2 note aren't part of I25.81, but may be coded alongside it if the patient has both: atherosclerotic heart disease of native coronary artery without angina pectoris (I25.10).

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.