I71 – Aortic aneurysm and dissection
ICD-10-CM 2027 diagnosis code · Diseases of arteries, arterioles and capillaries
ICD-10-CM code
I71
- Code
I71(claims format:I71)- Description
- Aortic aneurysm and dissection
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 9. Diseases of the circulatory system (I00-I99)
- Block
- I70-I79 Diseases of arteries, arterioles and capillaries
Billable codes under I71
I71 is a header code and cannot be used on claims. Choose the most specific code:
- I71.0 – Dissection of aortaHeader (more codes below)
- I71.1 – Thoracic aortic aneurysm, rupturedHeader (more codes below)
- I71.2 – Thoracic aortic aneurysm, without ruptureHeader (more codes below)
- I71.3 – Abdominal aortic aneurysm, rupturedHeader (more codes below)
- I71.4 – Abdominal aortic aneurysm, without ruptureHeader (more codes below)
- I71.5 – Thoracoabdominal aortic aneurysm, rupturedHeader (more codes below)
- I71.6 – Thoracoabdominal aortic aneurysm, without ruptureHeader (more codes below)
- I71.8 – Aortic aneurysm of unspecified site, rupturedBillable
- I71.9 – Aortic aneurysm of unspecified site, without ruptureBillable
Notes for I71
Frequently asked questions
What is ICD-10 code I71?
I71 is the ICD-10-CM code for aortic aneurysm and dissection, in the block I70-I79 (Diseases of arteries, arterioles and capillaries).
Is I71 a billable code?
No. I71 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.