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ICD-10-CM 2027

ICD-10 code for precerebral aneurysm

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › precerebral”. Page updated September 29, 2026.

About coding precerebral aneurysm

The official ICD-10-CM index doesn't give a single default code for precerebral aneurysm; the code depends on the details below.

More specific precerebral aneurysm codes (official index)

  • congenital (nonruptured) Q28.1 — Other malformations of precerebral vessels
  • specified site, NEC I72.5 — Aneurysm of other precerebral arteries

Common questions about precerebral aneurysm ICD-10 codes

What is the ICD-10 code for congenital precerebral aneurysm?

Q28.1 — Other malformations of precerebral vessels.