259Xeroderma Pigmentosum (XP) (著色性乾皮症)
260X-linked Agammaglobulinemia (XLA) (X-連鎖無丙種球蛋白血症)
261X-linked Hypophosphatemic Rickets (XLH) (性聯遺傳型低磷酸鹽佝僂症)
262X-linked Myotubular Myopathy (XLMTM) (肌小管病變)
263X-linked Retinoschisis (XLRS) (Genetic Disorder)
264X-linked Thrombocytopenia (XLT) (Genetic Disorder)