Other degenerative diseases of basal ganglia - G23

 Type 2 Excludes

• multi-system degeneration of the autonomic nervous system (G90.3)

 Codes

• G23.0 - Hallervorden-Spatz disease
• G23.1 - Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]
• G23.2 - Striatonigral degeneration
• G23.3 - Hypomyelination with atrophy of the basal ganglia and cerebellum
• G23.8 - Other specified degenerative diseases of basal ganglia
• G23.9 - Degenerative disease of basal ganglia, unspecified