331.0	Alzheimer’s disease
331.1	Pick’s disease
331.2	Senile degeneration of the brain
331.7	Cerebral degeneration in diseases classified elsewhere
290.0	Senile dementia, uncomplicated
290.1	Presenile dementia (brain syndrome w/ presenile dementia)
290.10	Presenile dementia, uncomplicated
290.11	Presenile dementia, w/ delirium
290.12	Presenile dementia, w/ delusional features
290.13	Presenile dementia, w/ depressive features
290.20	Senile dementia, w/ delusional features
290.21	Senile dementia, w/ depressive features
290.3	Senile dementia, w/ delirium
290.40	Arteriosclerotic dementia, uncomplicated
290.41	Arteriosclerotic dementia, w/ delirium
290.42	Arteriosclerotic dementia, w/ delusional features
290.43	Arteriosclerotic dementia, w/ depressive features
294.0	Amnestic syndrome (Korsakoff’s psychosis or syndrome, nonalcoholic)
294.1	Dementia in conditions classified elsewhere
294.8	Other specified organ brain syndrome (chronic)
797	Senility without mention of psychosis