CNS event	ICD-9-CM Code
Amnesia/Memory impairment	780.93; 437.7x; 300.12
Anxiety	300.0x; 293.84
Ataxia	781.3x; 438.84; 334.3x; 334.4x
Cognitive disorders	331.83
Confusion	298.2x
Convulsions	780.3x
Disturbance in attention	799.51
Dizziness	780.4x
Falls	V15.88
Fatigue/Asthenia	780.7x; 300.5x
Hallucinations	780.1x; 293.82
Headaches	346.xx; 784.0x; 339.xx; 307.81
Insomnia	307.41; 307.42; 780.52; 327.0x
Pain	338.xx; 780.96; 307.80; 307.89
Paresthesia	782.0x
Seizures	345.xx
Weakness	728.87
Other CNS disorders	340.xx-344.xx; 347.xx-349.xx