I71.6 — Thoracoabdominal aortic aneurysm, without rupture
I71.6 is a non-billable header ICD-10-CM code for thoracoabdominal aortic aneurysm, without rupture. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with I71.6
These codes carry an Excludes1 note pointing at I71.6. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I71.6 alone.
- I77.81Aortic ectasia
Risk adjustment
I71.6 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
I71.6 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead I71.6
3 child codes. Green means billable.
Related codes at this level
Codes that share I71. If I71.6 is not quite right, the correct code is usually one of these.
- I71.0Dissection of aorta
- I71.1Thoracic aortic aneurysm, ruptured
- I71.2Thoracic aortic aneurysm, without rupture
- I71.3Abdominal aortic aneurysm, ruptured
- I71.4Abdominal aortic aneurysm, without rupture
- I71.5Thoracoabdominal aortic aneurysm, ruptured
- I71.8Aortic aneurysm of unspecified site, ruptured
- I71.9Aortic aneurysm of unspecified site, without rupture
Questions about I71.6
- Is I71.6 a billable ICD-10-CM code?
- No. I71.6 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does I71.6 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Diseases of arteries, arterioles and capillaries (I70-I79).