ICD-10-CM 2027
ICD-10 code for neck aneurysm
From the official ICD-10-CM alphabetic index entry “Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › neck”. Page updated September 29, 2026.
About coding neck aneurysm
The ICD-10-CM code for neck aneurysm is I72.0 (Aneurysm of carotid artery).
Within I72 (other aneurysm), I72.0 is specifically for aneurysm of carotid artery. Related codes cover artery of upper extremity (I72.1), renal artery (I72.2), iliac artery (I72.3), artery of lower extremity (I72.4), other precerebral arteries (I72.5), vertebral artery (I72.6), other specified arteries (I72.8) and unspecified site (I72.9).
Don't report I72.0 together with the conditions in its Excludes1 note: aneurysm of internal carotid artery, intracranial portion (I67.1) and aneurysm of internal carotid artery NOS (I67.1).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for I72.0)
Common questions about neck aneurysm ICD-10 codes
What is the ICD-10 code for neck aneurysm?
- I72.0 — Aneurysm of carotid artery.
Is I72.0 billable?
- Yes. I72.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I72.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I72.0 as a principal diagnosis.
Is I72.0 a CC or MCC?
- No. I72.0 is neither a CC nor an MCC under MS-DRG v44.0.