ICD-10 Code I71.60 – Thoracoabdominal aortic aneurysm, without rupture, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I71.60 – Thoracoabdominal aortic aneurysm, without rupture, unspecified
What it is
This code identifies a thoracoabdominal aortic aneurysm involving both the chest and abdominal portions of the aorta, with no rupture documented. Use it when the record does not specify the exact segment or type beyond “unspecified.”
Clinical signs
Clinical features vary; refer to documentation. Many patients are asymptomatic, while others may have nonspecific chest, back, or abdominal discomfort, or the aneurysm may be found on imaging.
When to use this code
Use I71.60 when the provider documents a thoracoabdominal aortic aneurysm without rupture and does not identify a more specific subtype. It also fits when imaging confirms the condition but the note remains nonspecific. If rupture is documented, choose a different code.
Do not use for
Do not use this code for ruptured aneurysm, isolated thoracic aneurysm, or isolated abdominal aortic aneurysm. If the documentation names a more specific thoracoabdominal aneurysm type, code that instead.
Coding tip
Check the operative report, imaging, and assessment for rupture status and anatomic detail before assigning this unspecified code.