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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Organic Psychotic Conditions 290-294 > ICD-9-CM Diagnosis 294 Other organic psychotic conditions (chronic) 294 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 294.0 Amnestic disorder in conditions classified elsewhere 294.0 is a specific code that can be used to specify a diagnosis 294.0 contains 15 index entries ICD-9-CM Diagnosis 294.1 Dementia in conditions classified elsewhere A degenerative disease of the BRAIN characterized by the insidious onset of DEMENTIA. Impairment of MEMORY, judgment, attention span, and problem solving skills are followed by severe APRAXIAS and a global loss of cognitive abilities. The condition primarily occurs after age 60, and is marked pathologically by severe cortical atrophy and the triad of SENILE PLAQUES; NEUROFIBRILLARY TANGLES; and NEUROPIL THREADS. (From Adams et al., Principles of Neurology, 6th ed, pp1049-57) A disabling degenerative disease of the nervous system occurring in middle-aged or older persons and characterized by dementia and failure of memory for recent events, followed by total incapacitation and death. Types of the Alzheimer syndrome are differentiated by the age of onset and genetic characteristics. The early onset form (the mean age of the onset of symptoms between the ages of 40 and 60 years) and the late onset form (the onset of symptoms after the age of 60 years). Three forms are identified: AD-1, AD-2, AD-3. Some of the clinical characteristics of the Alzheimer syndrome are similar to those of the Pick syndrome. A progressive, neurodegenerative disease characterized by loss of function and death of nerve cells in several areas of the brain leading to loss of cognitive function such as memory and language. 294.1 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 294.10 Dementia in conditions classified elsewhere without behavioral disturbance 294.10 is a specific code that can be used to specify a diagnosis 294.10 contains 47 index entries ICD-9-CM Diagnosis 294.11 Dementia in conditions classified elsewhere with behavioral disturbance 294.11 is a specific code that can be used to specify a diagnosis 294.11 contains 47 index entries ICD-9-CM Diagnosis 294.8 Other persistent mental disorders due to conditions classified elsewhere An acquired organic mental disorder with loss of intellectual abilities of sufficient severity to interfere with social or occupational functioning. The dysfunction is multifaceted and involves memory, behavior, personality, judgment, attention, spatial relations, language, abstract thought, and other executive functions. The intellectual decline is usually progressive, and initially spares the level of consciousness. 294.8 is a specific code that can be used to specify a diagnosis 294.8 contains 12 index entries ICD-9-CM Diagnosis 294.9 Unspecified persistent mental disorders due to conditions classified elsewhere Disturbances in the mental process related to thinking, reasoning, and judgment. 294.9 is a specific code that can be used to specify a diagnosis 294.9 contains 10 index entries