| O30.291 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester | BILLABLE CODE |
| O30.292 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester | BILLABLE CODE |
| O30.293 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester | BILLABLE CODE |
| O30.299 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester | BILLABLE CODE |
