- Have another diagnosed neurologic condition (excluding headache or migraine, headache, migraine, dysautonomia, depression or other mood disorders (unless severe or uncontrolled), dementia or cognitive changes (unless severe), diffuse lewy body dementia, REM sleep behavior disorder, normal pressure hydrocephalus, multiple system atrophy P and C types, progressive supranuclear palsy, vascular parkinsonism, corticobasal ganglionic degeneration, and drug induced parkinsonism)