O43.1 - Malformation of placenta
O43.12 - Velamentous insertion of umbilical cord
O43.121 - Velamentous insertion of umbilical cord, first trimester
O43.122 - Velamentous insertion of umbilical cord, second trimester
O43.123 - Velamentous insertion of umbilical cord, third trimester
O43.129 - Velamentous insertion of umbilical cord, unspecified trimester