Monarch Disease Ontology identifier MONDO_0009223 (hypogonadotropic hypogonadism 23 with or without anosmia) is any hypogonadotropic hypogonadism in which the cause of the disease is a mutation in the LHB gene. Also known as: 46,XY DSD due to LHB deficiency, 46,XY DSD due to luteinizing hormone subunit beta deficiency, 46,XY disorder of sex development due to LHB deficiency, 46,XY disorder of sex development due to luteinizing hormone subunit beta deficiency, LHB hypogonadotropic hypogonadism, Leydig cell hypoplasia due to LHB deficiency, Leydig cell hypoplasia due to luteinizing hormone subunit beta deficiency, Pasqualini syndrome.