Episodic ataxia type 6 (EA6) is an exceedingly rare form of hereditary episodic ataxia with varying degrees of ataxia and associated findings including slurred speech, headache, confusion and hemiplegia. The disease is Monarch Disease Ontology id MONDO_0012982 (episodic ataxia type 6). Also known as: SLC1A3 hereditary episodic ataxia, hereditary episodic ataxia caused by mutation in SLC1A3.