ICD-10-CM 2027
ICD-10 code for iliac aneurysm
From the official ICD-10-CM alphabetic index entry “Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › iliac (common) (artery) (ruptured)”. Page updated September 29, 2026.
About coding iliac aneurysm
The ICD-10-CM code for iliac aneurysm is I72.3 (Aneurysm of iliac artery).
Within I72 (other aneurysm), I72.3 is specifically for aneurysm of iliac artery. Related codes cover carotid artery (I72.0), artery of upper extremity (I72.1), renal artery (I72.2), 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).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 299 (Peripheral Vascular Disorders with MCC, relative weight 1.5842), DRG 300 (Peripheral Vascular Disorders with CC, relative weight 1.0464) and DRG 301 (Peripheral Vascular Disorders without CC/MCC, relative weight 0.7133), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about iliac aneurysm ICD-10 codes
What is the ICD-10 code for iliac aneurysm?
- I72.3 — Aneurysm of iliac artery.
Is I72.3 billable?
- Yes. I72.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I72.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I72.3 as a principal diagnosis.
Is I72.3 a CC or MCC?
- No. I72.3 is neither a CC nor an MCC under MS-DRG v44.0.