G11.1

Early-onset cerebellar ataxia

Coding guidance (WHO 2019)

Note: Onset usually before the age of 20 Early-onset cerebellar ataxia with: essential tremor myoclonus [Hunt ataxia] retained tendon reflexes Friedreich ataxia (autosomal recessive) X-linked recessive spinocerebellar ataxia

Sibling codes

G11Hereditary ataxia G11.0Congenital nonprogressive ataxia G11.2Late-onset cerebellar ataxia G11.3Cerebellar ataxia with defective DNA repair G11.4Hereditary spastic paraplegia G11.8Other hereditary ataxias G11.9Hereditary ataxia, unspecified