I71
Non-billableAortic aneurysm and dissection
I71 is the ICD-10-CM code for Aortic aneurysm and dissection. It is a non-billable category code — use a more specific child code such as I71.0 for billing.
- Status
- Header (non-billable)
- Chapter
- I00-I99
- Subcodes
- 9
- Edition
- FY2026
I00-I99 Diseases of the circulatory system
What this means — in plain language
MedlinePlus · NIHAn aneurysm is a bulge or "ballooning" in the wall of an artery. Arteries are blood vessels that carry oxygen-rich blood from the heart to other parts of the body. If an aneurysm grows large, it can burst and cause dangerous bleeding or even death. Most aneurysms are in the aorta, the main artery that runs from the heart through the chest and abdomen. There are two types of aortic aneurysm: Thoracic aortic aneurysms…
Read more about Aortic Aneurysm at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Code first
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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