2006 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.* > 2006 ICD-9-CM Diagnosis 348.31 Metabolic encephalopathy View the most recent version of ICD-9-CM 348.31 Acquired or inborn metabolic diseases that produce brain dysfunction or damage. These include primary (i.e., disorders intrinsic to the brain) and secondary (i.e., extracranial) metabolic conditions that adversely affect cerebral function. 348.31 is a specific code that can be used to specify a diagnosis 348.31 contains 3 index entries View the ICD-9-CM Volume 1 348.* hierarchy Alternate Terminology Septic encephalopathy  Index entries containing 348.31: Encephalopathy (acute) 348.30 metabolic (see also Delirium) 348.31 toxic 349.82 septic 348.31