combined oxidative phosphorylation deficiency 19 (MONDO_0014269, a Monarch Disease Ontology id) is any combined oxidative phosphorylation deficiency in which the cause of the disease is a mutation in the LYRM4 gene. Also known as: LYRM4 combined oxidative phosphorylation deficiency, combined oxidative phosphorylation deficiency caused by mutation in LYRM4, combined oxidative phosphorylation deficiency type 19.