Atherosclerosis of other arteries

This code signifies the hardening and narrowing of arteries due to plaque buildup (atherosclerosis) in arterial locations other than the aorta, renal, mesenteric, or extremities. It indicates a systemic or localized atherosclerotic process affecting various less common arterial beds.

This code is appropriate when documentation specifies atherosclerosis in arteries such as the carotid (without cerebral infarction), subclavian, or other named arteries not covered by more specific ICD-10-CM codes. Use when the physician explicitly diagnoses atherosclerosis in an "other" specified artery.

• Ensure the documentation clearly identifies the affected artery as "other" and not one with a more specific code (e.g., coronary, renal, peripheral).
• Do not use this code for atherosclerosis of the native arteries of the extremities (I70.2-).
• Always review for any associated complications (e.g., stenosis, occlusion, aneurysm) which may require additional coding.