I25.4
⚠ Non-billable
Coronary artery aneurysm and dissection
ICD-10-CM · FY2026 · Diseases of the Circulatory System
Code
I25.4
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Circulatory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code I25.4?
ICD-10-CM code I25.4 represents Coronary artery aneurysm and dissection. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.
Is I25.4 billable?
No. I25.4 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is I25.4 in?
I25.4 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.
Related codes in the I25 category
I25
Chronic ischemic heart disease
Non-billable
I25.1
Atherosclerotic heart disease of native coronary artery
Non-billable
I25.2
Old myocardial infarction
Billable
I25.3
Aneurysm of heart
Billable
I25.5
Ischemic cardiomyopathy
Billable
I25.6
Silent myocardial ischemia
Billable
I25.7
Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris
Non-billable
I25.8
Other forms of chronic ischemic heart disease
Non-billable
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