I25.3 Aneurysm of heart
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Aneurysm of heart
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Also covers
- Mural aneurysm
- Ventricular aneurysm
Excludes2
Not part of this code, but both can be coded when both are documented.
- non-ischemic myocardial injury (I5A)
Use additional code
Add a second code for the following, when documented.
- 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)
Code also
A second code may be needed. Sequencing depends on the encounter.
- the presence of hypertension (I10-I1A)
Related codes
I25.112Atherosclerotic heart disease of native coronary artery with refractory angina pectoris ICD-10-CMI25.118Atherosclerotic heart disease of native coronary artery with other forms of angina… ICD-10-CMI25.119Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris ICD-10-CMI25.2Old myocardial infarction ICD-10-CMI25.41Coronary artery aneurysm ICD-10-CMI25.42Coronary artery dissection ICD-10-CMI25.5Ischemic cardiomyopathy ICD-10-CMI25.6Silent myocardial ischemia ICD-10-CM
Common questions
Is I25.3 a billable code?
Yes. I25.3 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.