International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10)-WHO Version for ;2019-covid-expanded

Chapter VI
Diseases of the nervous system
(G00-G99)

Other degenerative diseases of the nervous system
(G30-G32)

G30 Alzheimer disease

Incl.:
senile and presenile forms
Excl.:
senile:
  • degeneration of brain NEC (G31.1)
  • dementia NOS (F03)
senility NOS (R54)
G30.0 Alzheimer disease with early onset
Note:

Onset usually before the age of 65

G30.1 Alzheimer disease with late onset
Note:

Onset usually after the age of 65

G30.8 Other Alzheimer disease
G30.9 Alzheimer disease, unspecified

G31 Other degenerative diseases of nervous system, not elsewhere classified

Excl.:
Reye syndrome (G93.7)
G31.0 Circumscribed brain atrophy
Incl.:
Frontotemporal dementia (FTD)
Pick disease
Progressive isolated aphasia
G31.1 Senile degeneration of brain, not elsewhere classified
Excl.:
Alzheimer disease (G30.-)
senility NOS (R54)
G31.2 Degeneration of nervous system due to alcohol
Incl.:
Alcoholic:
  • cerebellar:
    • ataxia
    • degeneration
  • cerebral degeneration
  • encephalopathy
Dysfunction of autonomic nervous system due to alcohol
G31.8 Other specified degenerative diseases of nervous system
Incl.:
Grey-matter degeneration [Alpers]
Lewy body(ies)(dementia)(disease) (F02.8*)
Subacute necrotizing encephalopathy [Leigh]
G31.9 Degenerative disease of nervous system, unspecified

G32* Other degenerative disorders of nervous system in diseases classified elsewhere

G32.0* Subacute combined degeneration of spinal cord in diseases classified elsewhere
Excl.:
Subacute combined degeneration of spinal cord in vitamin B12 deficiency (E53.8†)
G32.8* Other specified degenerative disorders of nervous system in diseases classified elsewhere