hypertrophic cardiomyopathy heart disorder obsolete neuro-ophthalmological disease autosomal recessive degenerative and progressive cerebellar ataxia Friedreich ataxia https://github.com/monarch-initiative/mondo/issues/9097 https://rarediseases.info.nih.gov/diseases/6468/friedreich-ataxia https://www.malacards.org/card/friedreich_ataxia MEDGEN:5276 MONDO:0100339 UMLS:C0016719 spinocerebellar ataxia, Friedreich hereditary spinal sclerosis SCTID:10394003 Friedreich ataxia Friedreich's ataxia ICD10CM:G11.11 NCIT:C84718 DOID:12705 icd11.foundation:980686666 GARD:0006468 MESH:D005621 An inherited condition that affects the nervous system and causes movement problems. People with this condition develop impaired muscle coordination (ataxia) that worsens over time. Other features include the gradual loss of strength and sensation in the arms and legs, muscle stiffness (spasticity), and impaired speech. Many individuals have a form of heart disease called hypertrophic cardiomyopathy. Some develop diabetes, impaired vision, hearing loss, or an abnormal curvature of the spine (scoliosis). Most people with Friedreich ataxia begin to experience the signs and symptoms around puberty. FRDA ICD9:334.0 Friedreich's Ataxia Orphanet:95 MedDRA:10017374 NORD:818 hereditary spinal ataxia FA