| O30.10 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs | NON-BILLABLE CODE |
| O30.101 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester | BILLABLE CODE |
| O30.102 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester | BILLABLE CODE |
| O30.103 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester | BILLABLE CODE |
| O30.109 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester | BILLABLE CODE |
| O30.11 | Triplet pregnancy with two or more monochorionic fetuses | NON-BILLABLE CODE |
| O30.111 | Triplet pregnancy with two or more monochorionic fetuses, first trimester | BILLABLE CODE |
| O30.112 | Triplet pregnancy with two or more monochorionic fetuses, second trimester | BILLABLE CODE |
| O30.113 | Triplet pregnancy with two or more monochorionic fetuses, third trimester | BILLABLE CODE |
| O30.119 | Triplet pregnancy with two or more monochorionic fetuses, unspecified trimester | BILLABLE CODE |
| O30.12 | Triplet pregnancy with two or more monoamniotic fetuses | NON-BILLABLE CODE |
| O30.121 | Triplet pregnancy with two or more monoamniotic fetuses, first trimester | BILLABLE CODE |
| O30.122 | Triplet pregnancy with two or more monoamniotic fetuses, second trimester | BILLABLE CODE |
| O30.123 | Triplet pregnancy with two or more monoamniotic fetuses, third trimester | BILLABLE CODE |
| O30.129 | Triplet pregnancy with two or more monoamniotic fetuses, unspecified trimester | BILLABLE CODE |
| O30.13 | Triplet pregnancy, trichorionic/triamniotic | NON-BILLABLE CODE |
| O30.131 | Triplet pregnancy, trichorionic/triamniotic, first trimester | BILLABLE CODE |
| O30.132 | Triplet pregnancy, trichorionic/triamniotic, second trimester | BILLABLE CODE |
| O30.133 | Triplet pregnancy, trichorionic/triamniotic, third trimester | BILLABLE CODE |
| O30.139 | Triplet pregnancy, trichorionic/triamniotic, unspecified trimester | BILLABLE CODE |
| O30.19 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs | NON-BILLABLE CODE |
| O30.191 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester | BILLABLE CODE |
| O30.192 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester | BILLABLE CODE |
| O30.193 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester | BILLABLE CODE |
| O30.199 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester | BILLABLE CODE |
