| O411429 | Placentitis, second trimester, other fetus |
| O41143 | Placentitis, third trimester |
| O411430 | Placentitis, third trimester, not applicable or unspecified |
| O411431 | Placentitis, third trimester, fetus 1 |
| O411432 | Placentitis, third trimester, fetus 2 |
| O411433 | Placentitis, third trimester, fetus 3 |
| O411434 | Placentitis, third trimester, fetus 4 |
| O411435 | Placentitis, third trimester, fetus 5 |
| O411439 | Placentitis, third trimester, other fetus |
| O41149 | Placentitis, unspecified trimester |
| O411490 | Placentitis, unspecified trimester, not applicable or unspecified |
| O411491 | Placentitis, unspecified trimester, fetus 1 |
| O411492 | Placentitis, unspecified trimester, fetus 2 |
| O411493 | Placentitis, unspecified trimester, fetus 3 |
| O411494 | Placentitis, unspecified trimester, fetus 4 |
| O411495 | Placentitis, unspecified trimester, fetus 5 |
| O411499 | Placentitis, unspecified trimester, other fetus |
| O418 | Other specified disorders of amniotic fluid and membranes |
| O418X | Other specified disorders of amniotic fluid and membranes |
| O418X1 | Other specified disorders of amniotic fluid and membranes, first trimester |
| O418X10 | Other specified disorders of amniotic fluid and membranes, first trimester, not applicable or unspecified |
| O418X11 | Other specified disorders of amniotic fluid and membranes, first trimester, fetus 1 |
| O418X12 | Other specified disorders of amniotic fluid and membranes, first trimester, fetus 2 |
| O418X13 | Other specified disorders of amniotic fluid and membranes, first trimester, fetus 3 |
| O418X14 | Other specified disorders of amniotic fluid and membranes, first trimester, fetus 4 |
| O418X15 | Other specified disorders of amniotic fluid and membranes, first trimester, fetus 5 |
| O418X19 | Other specified disorders of amniotic fluid and membranes, first trimester, other fetus |
| O418X2 | Other specified disorders of amniotic fluid and membranes, second trimester |
| O418X20 | Other specified disorders of amniotic fluid and membranes, second trimester, not applicable or unspecified |
| O418X21 | Oth disrd of amniotic fluid and membrns, second tri, fetus 1 Other specified disorders of amniotic fluid and membranes, second trimester, fetus 1 |
| O418X22 | Oth disrd of amniotic fluid and membrns, second tri, fetus 2 Other specified disorders of amniotic fluid and membranes, second trimester, fetus 2 |
| O418X23 | Oth disrd of amniotic fluid and membrns, second tri, fetus 3 Other specified disorders of amniotic fluid and membranes, second trimester, fetus 3 |
| O418X24 | Oth disrd of amniotic fluid and membrns, second tri, fetus 4 Other specified disorders of amniotic fluid and membranes, second trimester, fetus 4 |
| O418X25 | Oth disrd of amniotic fluid and membrns, second tri, fetus 5 Other specified disorders of amniotic fluid and membranes, second trimester, fetus 5 |
| O418X29 | Other specified disorders of amniotic fluid and membranes, second trimester, other fetus |
| O418X3 | Other specified disorders of amniotic fluid and membranes, third trimester |
| O418X30 | Other specified disorders of amniotic fluid and membranes, third trimester, not applicable or unspecified |
| O418X31 | Other specified disorders of amniotic fluid and membranes, third trimester, fetus 1 |
| O418X32 | Other specified disorders of amniotic fluid and membranes, third trimester, fetus 2 |
| O418X33 | Other specified disorders of amniotic fluid and membranes, third trimester, fetus 3 |
| O418X34 | Other specified disorders of amniotic fluid and membranes, third trimester, fetus 4 |
| O418X35 | Other specified disorders of amniotic fluid and membranes, third trimester, fetus 5 |
| O418X39 | Other specified disorders of amniotic fluid and membranes, third trimester, other fetus |
| O418X9 | Other specified disorders of amniotic fluid and membranes, unspecified trimester |
| O418X90 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, not applicable or unspecified |
| O418X91 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 1 |
| O418X92 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 2 |
| O418X93 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 3 |
| O418X94 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 4 |
| O418X95 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 5 |