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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Other Disorders Of The Central Nervous System 340-349 > Other Conditions Of Brain 348.* > 2007 ICD-9-CM Diagnosis 348.3 Encephalopathy not elsewhere classified  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 Therefore, this code may be out of date.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 348.3 can be accessed here. A disorder of the brain that can be caused by disease, injury, drugs, or chemicals. 348.3 is a non-specific code that cannot be used to specify a diagnosis View the ICD-9-CM Volume 1 348.* hierarchy