2009 ICD-9-CM Diagnosis 331.* : Other cerebral degenerations

Free Online ICD-9-CM Diagnosis Codes > 2009 > Diseases Of The Nervous System And Sense Organs 320-389 > Hereditary And Degenerative Diseases Of The Central Nervous System 330-337 > Other cerebral degenerations 331.* > 
ICD-9-CM Diagnosis Code 331 Other cerebral degenerations
ICD-9-CM Diagnosis Code 331.0Alzheimer's disease
neurodegenerative disorder of the CNS resulting in progressive loss of memory and intellectual functions; begins in the middle or later years; characterized by brain lesions such as neurofibrillary tangles and neuritic plaques.
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.
ICD-9-CM Diagnosis Code 331.1 Pick's disease
ICD-9-CM Diagnosis Code 331.11Pick's disease
ICD-9-CM Diagnosis Code 331.19Other frontotemporal dementia
ICD-9-CM Diagnosis Code 331.2Senile degeneration of brain
ICD-9-CM Diagnosis Code 331.3Communicating hydrocephalus
ICD-9-CM Diagnosis Code 331.4Obstructive hydrocephalus
ICD-9-CM Diagnosis Code 331.5Idiopathic normal pressure hydrocephalus (inph)
ICD-9-CM Diagnosis Code 331.7Cerebral degeneration in diseases classified elsewhere
ICD-9-CM Diagnosis Code 331.8 Other cerebral degeneration
ICD-9-CM Diagnosis Code 331.81Reye's syndrome
rare, acute, sometimes fatal disease of childhood, most often occurring as a sequel of varicella or a viral upper respiratory infection of childhood; marked by recurrent vomiting and elevated serum transaminase levels with distinctive changes in the liver and other viscera; an encephalopathic phase with acute brain swelling disturbances of consciousness and seizures may follow.
ICD-9-CM Diagnosis Code 331.82Dementia with lewy bodies
Neurodegenerative disease marked by the presence of Lewy body cells in the cerebral cortex and brain stem. Symptoms often include dementia, parkinsonianism, and striking fluctuations in cognitive performance.
ICD-9-CM Diagnosis Code 331.83Mild cognitive impairment, so stated  
ICD-9-CM Diagnosis Code 331.89Other cerebral degeneration
ICD-9-CM Diagnosis Code 331.9Cerebral degeneration unspecified
result of genetic metabolic defects or damage by exogenous or endogenous toxins; characterized by cerebral cortex atrophy and progressive cerebral demyelination; dementia and mental deterioration are common.
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