I72.5
BillableAneurysm of other precerebral arteries
HCC Category Mapping
V24HCC 108 — Vascular Disease
0.297ESRDHCC 108 — Vascular Disease
0.000What This Code Means
A weakened, bulging section of an artery in the neck or head region that supplies blood to the brain, excluding the vertebral artery.
Coding Tips
- •This code excludes vertebral artery aneurysms, which have their own code (I72.6)
- •Document specific artery location (carotid, basilar, etc.) when available
Clinical Significance
Aneurysm of other precerebral arteries encompasses aneurysms of vessels supplying the brain other than the carotid and vertebral arteries, such as the innominate (brachiocephalic), subclavian, or other named precerebral vessels. These are rare but carry stroke risk through embolization. Accurate coding captures this unusual vascular pathology for appropriate risk stratification.
Documentation Requirements
- ✓Specific identification of the precerebral artery involved
- ✓Imaging confirmation with size and morphology
- ✓Assessment of cerebrovascular symptomatology
- ✓Laterality when applicable
- ✓Etiology (atherosclerotic, traumatic, connective tissue disorder)
- ✓Treatment plan and neurovascular consultation documentation
Excludes 2 — Not included here, may code separately
Commonly Confused Codes
I72.0 — Aneurysm of carotid artery: carotid has its own specific codeI72.6 — Aneurysm of vertebral artery: vertebral has its own specific codeI67.1 — Cerebral aneurysm, nonruptured: intracranial aneurysm, not precerebralI72.8 — Aneurysm of other specified arteries: use I72.5 when the artery is precerebral
Code Hierarchy
└I72Other aneurysm└I72.5Aneurysm of other precerebral arteries
└I72.5Aneurysm of other precerebral arteries