ICD-10-CM Code For Encephalitis, Myelitis And Encephalomyelitis: Group Overview
The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group G04 includes inflammatory diseases of the central nervous system such as encephalitis, myelitis, and encephalomyelitis caused by infectious, autoimmune, or unspecified etiologies that affect the brain and/or spinal cord. These ICD-10-CM diagnosis codes are used to document acute and chronic presentations, capture disease severity, and specify anatomic involvement or identified causative agents when known. Accurate coding within the ICD-10-CM G04 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.
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ICD-10-CM G04: Encephalitis, Myelitis And Encephalomyelitis Overview
The ICD-10-CM G04 group encompasses inflammatory disorders of the central nervous system, including encephalitis, myelitis, and encephalomyelitis that affect the brain, spinal cord, or both. These conditions often arise from infectious, autoimmune, or post-infectious processes and can lead to significant neurologic dysfunction. Accurate coding is important because it supports appropriate clinical documentation and reimbursement by reflecting the severity and organ involvement of these diagnoses.