I72.5Aneurysm of other precerebral arteries

I72.5 is the ICD-10-CM diagnosis code for aneurysm of other precerebral arteries. It belongs to category I72 (other aneurysm), block I70-I79 (diseases of arteries, arterioles and capillaries) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within I72, choose I72.5 (other precerebral arteries) only when documentation doesn't support a more specific option: carotid artery (I72.0), artery of upper extremity (I72.1), renal artery (I72.2), iliac artery (I72.3), artery of lower extremity (I72.4), vertebral artery (I72.6), other specified arteries (I72.8) and unspecified site (I72.9).

The conditions in its Excludes2 note aren't part of I72.5, but may be coded alongside it if the patient has both: aneurysm of carotid artery (I72.0), aneurysm of vertebral artery (I72.6), dissection of carotid artery (I77.71), dissection of other precerebral arteries (I77.75) and 1 more.

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.

It was added in FY2017, effective October 1, 2016.

Before ICD-10, this condition was coded in ICD-9-CM as 442.81 (aneurysm of artery of neck).