Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes G00-G99 – Diseases of the nervous system (G00-G99) > 2024 ICD-10-CM Codes G00-G09 – Inflammatory diseases of the central nervous system (G00-G09) > 2024 ICD-10-CM Codes G04 – Encephalitis, myelitis and encephalomyelitis (G04) > 2024 ICD-10-CM Codes G04.9 – Encephalitis, myelitis and encephalomyelitis, unspecified (G04.9)