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ICD-10-CM Current in FY 2027

G23.3

Hypomyelination with atrophy of the basal ganglia and cerebellum

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where G23.3 sits in the official hierarchy. Each level is the code it is classified under.

  1. G23 Parent Other degenerative diseases of basal ganglia
  2. G23.3 This code Hypomyelination with atrophy of the basal ganglia and cerebellum

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Inclusion Terms

H-ABC

Inclusion Terms

TUBB4A-related neurologic disorders

Excludes2

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

Inherited from G23 — Other degenerative diseases of basal ganglia

Version History

How G23.3 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Hypomyelination with atrophy of the basal ganglia and cerebellum

  2. FY 2026 Effective

    Unchanged

    Hypomyelination with atrophy of the basal ganglia and cerebellum

Related Codes

Other codes under G23

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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