Syndactyly Finger syndactyly HP:0006101 UMLS:C0221352 HP:0006057 SNOMEDCT_US:249769001 Partial syndactyly SNOMEDCT_US:268251006 Webbing or fusion of the fingers, involving soft parts only or including bone structure. Bony fusions are referred to as "bony" Syndactyly if the fusion occurs in a radio-ulnar axis. Fusions of bones of the fingers in a proximo-distal axis are referred to as "Symphalangism". SNOMEDCT_US:34048007 Genetic congenital limb malformation Dysostosis of genetic origin with limb anomaly as a major feature