Hunt & Hess

Subarachnoid hemorrhage

Grade 1

Asymptomatic, mild headache, slight nuchal rigidity.

Grade 2

Moderate to severe headache, nuchal rigidity, no neurologic deficit other than cranial nerve palsy.

Grade 3

Drowsiness / confusion, mild focal neurologic deficit.

Grade 4

Stupor, moderate-severe hemiparesis.

Grade 5

Coma, decerebrate posturing.

Reference

StrokeCenter.org