G05Header code — not billable
Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
Short description: Encphlts, myelitis & encephalomyelitis in dis classd elswhr
- Chapter
- 6. Diseases of the nervous system
- Category
- G05
- Effective date
- October 1, 2026
Related codes in category G05
Frequently asked questions
What is ICD-10 code G05?
G05 is an ICD-10-CM diagnosis code for Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere.
Is G05 a billable code?
No. G05 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is G05 in?
G05 falls under Chapter 6: Diseases of the nervous system.
When did G05 become effective?
G05 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to G05?
G05 belongs to category G05, which includes 2 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.