| ICD-10 Code | Description |
| O30.201 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30.202 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30.203 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30.209 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O30.211 | Quadruplet pregnancy with two or more monochorionic fetuses, first trimester |
| O30.212 | Quadruplet pregnancy with two or more monochorionic fetuses, second trimester |
| O30.213 | Quadruplet pregnancy with two or more monochorionic fetuses, third trimester |
| O30.219 | Quadruplet pregnancy with two or more monochorionic fetuses, unspecified trimester |
| O30.221 | Quadruplet pregnancy with two or more monoamniotic fetuses, first trimester |
| O30.222 | Quadruplet pregnancy with two or more monoamniotic fetuses, second trimester |
| O30.223 | Quadruplet pregnancy with two or more monoamniotic fetuses, third trimester |
| O30.229 | Quadruplet pregnancy with two or more monoamniotic fetuses, unspecified trimester |
| O30.231 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, first trimester |
| O30.232 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, second trimester |
| O30.233 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, third trimester |
| O30.239 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, unspecified trimester |
| O30.291 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester |
| O30.292 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30.293 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O30.299 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
