G32.8

ICD-10Non-billable category

Oth degeneratv disord of nervous sys in dis classd elswhr

Official ICD-10-CM descriptor (FY2026)

Other specified degenerative disorders of nervous system in diseases classified elsewhere

G32.8 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

  • superior hemorrhagic polioencephalitis [Wernicke's encephalopathy] (E51.2)

Code first

Sequence the underlying condition before this code.

  • underlying disease, such as:
  • amyloidosis cerebral degeneration (E85.-)
  • cerebral degeneration (due to) hypothyroidism (E00.0-E03.9)
  • cerebral degeneration (due to) neoplasm (C00-D49)
  • cerebral degeneration (due to) vitamin B deficiency, except thiamine (E52-E53.-)

ICD-10-CM FY2026 defines 2 codes beneath G32.8. See the ICD-10-CM index for what this site publishes.

Related codes in G32

Where this code sits

Parent code
G32

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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