Disease_Mapped_To_Gene Hereditary Cerebellar Ataxia Cellosaurus Disease Terminology Repeat Expansion Disease mCode Terminology mCode Elixhauser Neurological Movement Disorder Value Set FXN Gene Rare Non-Neoplastic Disorder Friedreich Ataxia Friedreich Ataxia Disease or Syndrome Friedreich ataxia mCode Friedreich's Ataxia An autosomal recessive inherited disorder caused by mutations in the FXN gene. It is characterized by progressive degeneration of the nerve tissues of the spinal cord. The main symptoms include gait and balance disturbances, lack of limb coordination, and speech disturbances. C84718 Friedreich Ataxia Cellosaurus C0016719