Hypomyelination with atrophy of the basal ganglia and cerebellum

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2024 onwards.

What has happened to this code

Every change the publisher made, from 2024 to now.

FY2024 Added to the code set Hypomyelination with atrophy of the basal ganglia and cerebellum

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from G23 Other degenerative diseases of basal ganglia

Excludes2 - not included here

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

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

H-ABC
Disorder > neurological NEC > TUBB4A-related
Hypomyelination with atrophy of the basal ganglia and cerebellum

Codes in the same group

Code	Description	Status
G23.0	Hallervorden-Spatz disease	Valid
G23.1	Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]	Valid
G23.2	Striatonigral degeneration	Valid
G23.8	Other specified degenerative diseases of basal ganglia	Valid
G23.9	Degenerative disease of basal ganglia, unspecified	Valid