Xanthoma: (see Xanthomatosis)
Xanthoma Disseminatum: (see Histiocytosis, Non-Langerhans-Cell)
Xanthomatosis: 0.12, 0.23, 0.87, 5.50, 97.50, 376.29, 432.41, 563.19, 642.06, 983.17
Xanthomatosis, Familial: (see Wolman Disease)
Xanthomatosis, Wolman's: (see Wolman Disease)
Xeroderma: (see Ichthyosis)
Xeroderma Pigmentosum: 0.08, 7.50, 12.85, 40.00, 65.16, 96.50, 175.05, 653.69, 759.83, 923.70,
Xerostomia: 0.12, 5.81, 25.00, 87.50, 225.00, 458.50, 522.39, 683.00, 712.23, 992.00,
X-Linked Adrenoleukodystrophy: (see Adrenoleukodystrophy)
X-Linked Lymphoproliferative Syndrome: (see LYMPHOPROLIFERATIVE DISORDERS)
X-Linked Retinoschisis: (see Retinoschisis)
XXY Males: (see Klinefelter Syndrome)
XYY Karyotype: 0.11, 2.50, 32.50, 125.00, 275.05, 451.17, 515.16, 684.81, 712.81, 997.87,