I71
ICD-10Non-billable categoryAortic aneurysm and dissection
Official ICD-10-CM descriptor (FY2026)
Aortic aneurysm and dissection
I71 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Code first
Sequence the underlying condition before this code.
- , if applicable:
- syphilitic aortic aneurysm (A52.01)
- traumatic aortic aneurysm (S25.09, S35.09)
More specific codes under I71
- I71.0Dissection of aortacategory
- I71.1Thoracic aortic aneurysm, rupturedcategory
- I71.2Thoracic aortic aneurysm, without rupturecategory
- I71.3Abdominal aortic aneurysm, rupturedcategory
- I71.4Abdominal aortic aneurysm, without rupturecategory
- I71.5Thoracoabdominal aortic aneurysm, rupturedcategory
- I71.6Thoracoabdominal aortic aneurysm, without rupturecategory
- I71.8Aortic aneurysm of unspecified site, ruptured
- I71.9Aortic aneurysm of unspecified site, without rupture
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.