HTT and Dystonia: When a patient with an early onset autosomal dominant chorea‐dystonia phenotype presents at any outpatient clinic, we may recommend to test first for repeat expansions in early‐onset chorea genes, including HTT, HDL genes, and benign hereditary chorea genes, followed by an up‐to‐date dystonia gene panel and subsequently Human Phenotype Ontology (HPO)‐labelled dystonia and chorea genes.