2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Inflammatory Diseases Of The Central Nervous System 320-327 > ICD-9-CM Diagnosis 323 Encephalitis myelitis and encephalomyelitis 323 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 323.0 Encephalitis in viral diseases classified elsewhere 323.0 is a specific code that can be used to specify a diagnosis 323.0 contains 3 index entries ICD-9-CM Diagnosis 323.1 Encephalitis in rickettsial diseases classified elsewhere 323.1 is a specific code that can be used to specify a diagnosis 323.1 contains 2 index entries ICD-9-CM Diagnosis 323.2 Encephalitis in protozoal diseases classified elsewhere 323.2 is a specific code that can be used to specify a diagnosis 323.2 contains 5 index entries ICD-9-CM Diagnosis 323.4 Other encephalitis due to infection classified elsewhere 323.4 is a specific code that can be used to specify a diagnosis 323.4 contains 17 index entries ICD-9-CM Diagnosis 323.5 Encephalitis following immunization procedures 323.5 is a specific code that can be used to specify a diagnosis 323.5 contains 18 index entries ICD-9-CM Diagnosis 323.6 Postinfectious encephalitis 323.6 is a specific code that can be used to specify a diagnosis 323.6 contains 14 index entries ICD-9-CM Diagnosis 323.7 Toxic encephalitis 323.7 is a specific code that can be used to specify a diagnosis 323.7 contains 17 index entries ICD-9-CM Diagnosis 323.8 Other causes of encephalitis 323.8 is a specific code that can be used to specify a diagnosis 323.8 contains 7 index entries ICD-9-CM Diagnosis 323.9 Unspecified cause of encephalitis 323.9 is a specific code that can be used to specify a diagnosis 323.9 contains 20 index entries