--- 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