G23.0
✓ Billable
Hallervorden-Spatz disease
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G23.0
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 G23.0?
ICD-10-CM code G23.0 represents Hallervorden-Spatz disease. It is a billable diagnosis code in the Diseases of the Nervous System chapter, effective October 1, 2025 – September 30, 2026.
Is G23.0 billable?
Yes. G23.0 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is G23.0 in?
G23.0 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
Related codes in the G23 category
G23
Other degenerative diseases of basal ganglia
Non-billable
G23.1
Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]
Billable
G23.2
Striatonigral degeneration
Billable
G23.3
Hypomyelination with atrophy of the basal ganglia and cerebellum
Billable
G23.8
Other specified degenerative diseases of basal ganglia
Billable
G23.9
Degenerative disease of basal ganglia, unspecified
Billable
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