I25.41 Coronary artery aneurysm

Billable ICD-10-CM code, FY2026.

Applicable to

• Coronary arteriovenous fistula, acquired

Excludes1 (never code together)

• congenital coronary (artery) aneurysm (Q24.5)

Applies from I25 Chronic ischemic heart disease

Excludes2 (not included here)

• non-ischemic myocardial injury (I5A)

Use additional code

• 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.-)
• tobacco use (Z72.0)

Risk adjustment (HCC)

• RxHCC V08: HCC 188 — Coronary Artery Disease

MS-DRG index

Defines the logic of DRG(s) 314-316 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 414.11 Aneurysm of coronary vessels

Code annotations containing back-references to I25.41

Back-references to I25.4

• Type 2 Excludes: I72 Other aneurysm ("coronary aneurysm (I25.4)")
• Type 2 Excludes: I77.0 Arteriovenous fistula, acquired ("coronary (I25.4)")

Back-references to I25

• Type 2 Excludes: I74 Arterial embolism and thrombosis ("coronary embolism and thrombosis (I21-I25)")
• Type 2 Excludes: I82 Other venous embolism and thrombosis ("coronary (I21-I25)")

Diagnosis Index entries for I25.41

• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › arteriovenous (congenital) › acquired › coronary
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › coronary (arteriosclerotic) (artery)
• Fistula (cutaneous) › arteriovenous (acquired) (nonruptured) › coronary
• Fistula (cutaneous) › coronary, arteriovenous

Nearby codes

• I25.118 Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
• I25.119 Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris
• I25.2 Old myocardial infarction
• I25.3 Aneurysm of heart
• I25.4 Coronary artery aneurysm and dissection
• I25.41 Coronary artery aneurysm (this code)
• I25.42 Coronary artery dissection
• I25.5 Ischemic cardiomyopathy
• I25.6 Silent myocardial ischemia
• I25.7 Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris
• I25.70 Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris