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2 Late-onset cerebellar ataxia

G11.3 Cerebellar ataxia with defective DNA repair
Ataxia telangiectasia [Louis-Bar]
Excludes2: Cockayne's syndrome (Q87.1)
other disorders of purine and pyrimidine metabolism (E79.-)
xeroderma pigmentosum (Q82.1)
G11.4 Hereditary spastic paraplegia
G11.8 Other hereditary ataxias
G11.9 Hereditary ataxia, unspecified
Hereditary cerebellar ataxia NOS
Hereditary cerebellar degeneration
Hereditary cerebellar disease
Hereditary cerebellar syndrome
G12.0 Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]
G12.1 Other inherited spinal muscular atrophy
Adult form spinal muscular atrophy
Childhood form, type II spinal muscular atrophy
Distal spinal muscular atrophy
Juvenile form, type III spinal muscular atrophy [Kugelberg-Welander]
Progressive bulbar palsy of childhood [Fazio-Londe]
Scapuloperoneal form spinal muscular atrophy
G12.2 Motor neuron disease
G12.20 Motor neuron disease, unspecified
G12.21 Amyotrophic lateral sclerosis
Progressive spinal muscle atrophy
G12.22 Progressive bulbar palsy
G12.29 Other motor neuron disease
Familial motor neuron disease
Primary lateral sclerosis
G12.8 Other spinal muscular atrophies and related syndromes
G12.9 Spinal muscular atrophy, unspecified

G13 Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere

G13.0 Paraneoplastic neuromyopathy and neuropathy
Carcinomatous neuromyopathy
Sensorial paraneoplastic neuropathy [Denny Brown]
Code first underlying neoplasm (C00-D48)
G13.1 Other systemic atrophy primarily affecting central nervous system in neoplastic disease
Paraneoplastic limbic encephalopathy
Code first underlying neoplasm (C00-D48)
G13.8 Systemic atrophy primarily affecting central nervous system in other diseases classified elsewhere
Code first underlying disease, such as:
cerebellar