O30.1 - Triplet pregnancy
O30.19 - Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs
O30.191 - Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester
O30.192 - Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester
O30.193 - Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester
O30.199 - Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester