G99.8Billable
Other specified disorders of nervous system in diseases classified elsewhere
Short description: Oth disrd of nervous system in diseases classified elsewhere
- Chapter
- 6. Diseases of the nervous system
- Category
- G99
- Effective date
- October 1, 2026
Related codes in category G99
Frequently asked questions
What is ICD-10 code G99.8?
G99.8 is an ICD-10-CM diagnosis code for Other specified disorders of nervous system in diseases classified elsewhere.
Is G99.8 a billable code?
Yes. G99.8 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is G99.8 in?
G99.8 falls under Chapter 6: Diseases of the nervous system.
When did G99.8 become effective?
G99.8 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to G99.8?
G99.8 belongs to category G99, which includes 3 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.