| O30192 | Trp preg, unable to dtrm num plcnta & amnio sacs, second tri Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30193 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O30199 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O302 | Quadruplet pregnancy |
| O3020 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs |
| O30201 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30202 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30203 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30209 | Quad pregnancy, unsp num plcnta & amnio sacs, unsp trimester Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O3021 | Quadruplet pregnancy with two or more monochorionic fetuses |
| O30211 | Quadruplet pregnancy with two or more monochorionic fetuses, first trimester |
| O30212 | Quadruplet pregnancy with two or more monochorionic fetuses, second trimester |
| O30213 | Quadruplet pregnancy with two or more monochorionic fetuses, third trimester |
| O30219 | Quadruplet pregnancy with two or more monochorionic fetuses, unspecified trimester |
| O3022 | Quadruplet pregnancy with two or more monoamniotic fetuses |
| O30221 | Quadruplet pregnancy with two or more monoamniotic fetuses, first trimester |
| O30222 | Quadruplet pregnancy with two or more monoamniotic fetuses, second trimester |
| O30223 | Quadruplet pregnancy with two or more monoamniotic fetuses, third trimester |
| O30229 | Quadruplet pregnancy with two or more monoamniotic fetuses, unspecified trimester |
| O3023 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic |
| O30231 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, first trimester |
| O30232 | Quad preg, quadrachorionic/quadra-amniotic, second trimester Quadruplet pregnancy, quadrachorionic/quadra-amniotic, second trimester |
| O30233 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, third trimester |
| O30239 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, unspecified trimester |
| O3029 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs |
| O30291 | Quad preg, unable to dtrm num plcnta & amnio sacs, first tri Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester |
| O30292 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30293 | Quad preg, unable to dtrm num plcnta & amnio sacs, third tri Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O30299 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O308 | Other specified multiple gestation |
| O3080 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs |
| O30801 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30802 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30803 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30809 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O3081 | Other specified multiple gestation with two or more monochorionic fetuses |
| O30811 | Oth mult gest w two or more monochorionic fetuses, first tri Other specified multiple gestation with two or more monochorionic fetuses, first trimester |
| O30812 | Other specified multiple gestation with two or more monochorionic fetuses, second trimester |
| O30813 | Oth mult gest w two or more monochorionic fetuses, third tri Other specified multiple gestation with two or more monochorionic fetuses, third trimester |
| O30819 | Other specified multiple gestation with two or more monochorionic fetuses, unspecified trimester |
| O3082 | Oth multiple gestation with two or more monoamniotic fetuses Other specified multiple gestation with two or more monoamniotic fetuses |
| O30821 | Oth multiple gest w two or more monoamnio fetuses, first tri Other specified multiple gestation with two or more monoamniotic fetuses, first trimester |
| O30822 | Other specified multiple gestation with two or more monoamniotic fetuses, second trimester |
| O30823 | Oth multiple gest w two or more monoamnio fetuses, third tri Other specified multiple gestation with two or more monoamniotic fetuses, third trimester |
| O30829 | Other specified multiple gestation with two or more monoamniotic fetuses, unspecified trimester |
| O3083 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses |
| O30831 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, first trimester |
| O30832 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, second trimester |
| O30833 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, third trimester |
| O30839 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, unspecified trimester |