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291 Alcoholic psychosesOrganic psychotic states due mainly to excessive consumption of alcohol;
defects of nutrition are taught to play an important role. In some of these
states, withdrawal of alcohol can be of aetiological significance.
Excludes: alcoholism without psychosis (303)
291.0 Delirium tremensAcute or subacute organic psychotic states in alcoholics, characterized by
clouded consciousness, disorientation, fear, illusions, delusions,
hallucinations of any kind, notably visual and tactile, and restlessness,
tremor and sometimes fever.
291.1 Korsakoff's psychosis, alcoholicA syndrome of prominent and lasting reduction of memory span, including
striking loss of recent memory, disordered time appreciation and
confabulation, occurring in alcoholics as the sequel to an acute alcoholic
psychosis [especially delirium tremens] or, more rarely, in the course of
chronic alcoholism. It is usually accompanied by peripheral neuritis and may
be associated with Wernicke's encephalopathy.
Alcoholic polyneuritic psychosis
Excludes: Korsakov's psychosis:
291.2 Other alcoholic dementiaNonhallucinatory dementias occurring in association with alcoholism but not
characterized by the features of either delirium tremens or Korsakov's
Alcoholic dementia NOS
Chronic alcoholic brain syndrome
291.3 Other alcoholic hallucinosisA psychosis usually of less than six months' duration, with slight or no
clouding of consciousness and much anxious restlessness in which auditory
hallucinations, mostly of voices uttering insults and threats, predominate.
Excludes: schizophrenia (295.-) and paranoid states (297.-) taking the
form of chronic hallucinosis with clear consciousness in
291.4 Pathological drunkennessAcute psychotic episodes induced by relatively small amounts of alcohol.
These are regarded as individual idiosyncratic reactions to alcohol, not due
to excessive consumption and without conspicuous neurological signs of
Excludes: simple drunkenness (305.0)
291.5 Alcoholic jealousyChronic paranoid psychosis characterized by delusional jealousy and associated
Excludes: nonalcoholic paranoid states (297.-)
schizophrenia, paranoid type (295.3)
291.8 OtherAlcohol withdrawal syndrome
Excludes: delirium tremens (291.0)
291.9 UnspecifiedAlcoholic: Alcoholism (chronic) with psychosis
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