All
 C16 Congenital, Hereditary, and Neonatal Diseases and Abnormalities D009358 +
 C16.131 Abnormalities D000013 +
 C16.131.260 Chromosome Disorders D025063 +
 C16.131.260.080 Beckwith-Wiedemann Syndrome D001506 
 C16.131.260.190 Cri-du-Chat Syndrome D003410 
 C16.131.260.210 De Lange Syndrome D003635 
 C16.131.260.260 Down Syndrome D004314 
 C16.131.260.700 Prader-Willi Syndrome D011218 
 C16.131.260.790 Rubinstein-Taybi Syndrome D012415 
 C16.131.260.380 Holoprosencephaly D016142 
 C16.131.260.040 Angelman Syndrome D017204 
 C16.131.260.940 WAGR Syndrome D017624 
 C16.131.260.970 Williams Syndrome D018980 
 C16.131.260.090 Branchio-Oto-Renal Syndrome D019280 
 C16.131.260.800 Sex Chromosome Disorders D025064 +