G90.9
✓ Billable
Disorder of the autonomic nervous system, unspecified
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G90.9
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Nervous System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code G90.9?
ICD-10-CM code G90.9 represents Disorder of the autonomic nervous system, unspecified. It is a billable diagnosis code in the Diseases of the Nervous System chapter, effective October 1, 2025 – September 30, 2026.
Is G90.9 billable?
Yes. G90.9 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is G90.9 in?
G90.9 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
Related codes in the G90 category
G90
Disorders of autonomic nervous system
Non-billable
G90.0
Idiopathic peripheral autonomic neuropathy
Non-billable
G90.1
Familial dysautonomia [Riley-Day]
Billable
G90.2
Horner's syndrome
Billable
G90.3
Multi-system degeneration of the autonomic nervous system
Billable
G90.4
Autonomic dysreflexia
Billable
G90.5
Complex regional pain syndrome I (CRPS I)
Non-billable
G90.8
Other disorders of autonomic nervous system
Non-billable
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