G90
Non-billableDisorders of autonomic nervous system
G90 is the ICD-10-CM code for Disorders of autonomic nervous system. It is a non-billable category code — use a more specific child code such as G90.0 for billing.
- Status
- Header (non-billable)
- Chapter
- G00-G99
- Subcodes
- 10
- Edition
- FY2026
G00-G99 Diseases of the nervous system
Excludes1 — not coded here
- •dysfunction of the autonomic nervous system due to alcohol (G31.2)
Frequently asked questions
- What is ICD-10 code G90?
- G90 is the ICD-10-CM code for "Disorders of autonomic nervous system". It falls under G00-G99 Diseases of the nervous system.
- Is G90 a billable code?
- No — G90 is a non-billable header code. Use a more specific child code (such as G90.0) for billing.
- What is excluded from G90?
- Excludes1 (not coded here): dysfunction of the autonomic nervous system due to alcohol (G31.2).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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