I71
⚠ Non-billable (Header)Aortic aneurysm and dissection
Diseases of the circulatory system (I00-I99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
📋 Code Instructions
- • Code first: , if applicable:
- • Code first: syphilitic aortic aneurysm (A52.01)
- • Code first: traumatic aortic aneurysm (S25.09, S35.09)
Child Codes (9)
I71.0Dissection of aortaI71.1Thoracic aortic aneurysm, rupturedI71.2Thoracic aortic aneurysm, without ruptureI71.3Abdominal aortic aneurysm, rupturedI71.4Abdominal aortic aneurysm, without ruptureI71.5Thoracoabdominal aortic aneurysm, rupturedI71.6Thoracoabdominal aortic aneurysm, without ruptureI71.8Aortic aneurysm of unspecified site, rupturedI71.9Aortic aneurysm of unspecified site, without rupture
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CodeI71
BillableNo — Header code
CategoryDiseases of the circulatory system (I00-I99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes9
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)