Parkinson disease 22, autosomal dominant (Monarch Disease Ontology entry MONDO_0014742) is any Parkinson disease in which the cause of the disease is a mutation in the CHCHD2 gene. Also known as: CHCHD2 Parkinson disease, PARK22, Parkinson disease 22, autosomal dominant; PARK22, Parkinson disease caused by mutation in CHCHD2.