2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Organic Psychotic Conditions 290-294 > Alcohol-Induced Mental Disorders 291.* > 2008 ICD-9-CM Diagnosis 291.0 Alcohol withdrawal delirium  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 291.0 can be accessed here. An acute organic mental disorder induced by cessation or reduction in chronic alcohol consumption. Clinical characteristics include CONFUSION; DELUSIONS; vivid HALLUCINATIONS; TREMOR; agitation; insomnia; and signs of autonomic hyperactivity (e.g., elevated blood pressure and heart rate, dilated pupils, and diaphoresis). This condition may occasionally be fatal. It was formerly called delirium tremens. (From Adams et al., Principles of Neurology, 6th ed, p1175) 291.0 is a specific code that can be used to specify a diagnosis 291.0 contains 16 index entries View the ICD-9-CM Volume 1 291.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 291.0 also known as: Alcoholic delirium Delirium tremens 291.0 excludes: alcohol withdrawal (291.81) Index entries containing 291.0: Alcohol, alcoholic delirium 291.0 acute 291.0 chronic 291.1 tremens 291.0 withdrawal 291.0 withdrawal symptoms, syndrome NEC 291.81 delirium 291.0 Delirium, delirious 780.09 alcoholic 291.0 acute 291.0 chronic 291.1 alcoholicum 291.0 tremens (impending) 291.0 withdrawal alcoholic (acute) 291.0 chronic 291.1 Impending delirium tremens 291.0 Intoxication delirium alcohol 291.0 Psychosis 298.9 alcoholic 291.9 with delirium tremens 291.0 delirium tremens 291.0 State confusional 298.9 acute 293.0 alcoholic 291.0 Withdrawal symptoms, syndrome alcohol 291.81 delirium (acute) 291.0 chronic 291.1 newborn 760.71