G98

Non-billable

Other disorders of nervous system not elsewhere classified

G98 is the ICD-10-CM code for Other disorders of nervous system not elsewhere classified. It is a non-billable category code — use a more specific child code such as G98.0 for billing.

Status
Header (non-billable)
Chapter
G00-G99
Subcodes
2
Edition
FY2026

G00-G99 Diseases of the nervous system

Includes

  • nervous system disorder NOS

Frequently asked questions

What is ICD-10 code G98?
G98 is the ICD-10-CM code for "Other disorders of nervous system not elsewhere classified". It falls under G00-G99 Diseases of the nervous system.
Is G98 a billable code?
No — G98 is a non-billable header code. Use a more specific child code (such as G98.0) for billing.
What are the subcodes of G98?
G98 has 2 more specific child codes, including G98.0, G98.8.

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

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