Any coenzyme Q10 deficiency in which the cause of the disease is a mutation in the COQ2 gene. The disease is coenzyme Q10 deficiency, primary, 1 (MONDO_0011829, a Monarch Disease Ontology id). Also known as: COQ2 coenzyme Q10 deficiency, coenzyme Q10 deficiency caused by mutation in COQ2, coenzyme Q10 deficiency, primary, type 1.