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G04.8

Non-billable

Other encephalitis, myelitis and encephalomyelitis

G04.8 is the ICD-10-CM code for Other encephalitis, myelitis and encephalomyelitis. It is a non-billable category code — use a more specific child code such as G04.81 for billing.

Status
Header (non-billable)
Chapter
G00-G99
Parent
G04
Subcodes
3
Edition
FY2026

G00-G99 Diseases of the nervous system

Notes

  • •any associated seizure (G40.-, R56.9)

Frequently asked questions

What is ICD-10 code G04.8?
G04.8 is the ICD-10-CM code for "Other encephalitis, myelitis and encephalomyelitis". It falls under G00-G99 Diseases of the nervous system.
Is G04.8 a billable code?
No — G04.8 is a non-billable header code. Use a more specific child code (such as G04.81) for billing.
What are the subcodes of G04.8?
G04.8 has 3 more specific child codes, including G04.81, G04.82, G04.89.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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