| ICD-10 Code | Description |
| O41.1410 | Placentitis, first trimester, not applicable or unspecified |
| O41.1411 | Placentitis, first trimester, fetus 1 |
| O41.1412 | Placentitis, first trimester, fetus 2 |
| O41.1413 | Placentitis, first trimester, fetus 3 |
| O41.1414 | Placentitis, first trimester, fetus 4 |
| O41.1415 | Placentitis, first trimester, fetus 5 |
| O41.1419 | Placentitis, first trimester, other fetus |
| O41.1420 | Placentitis, second trimester, not applicable or unspecified |
| O41.1421 | Placentitis, second trimester, fetus 1 |
| O41.1422 | Placentitis, second trimester, fetus 2 |
| O41.1423 | Placentitis, second trimester, fetus 3 |
| O41.1424 | Placentitis, second trimester, fetus 4 |
| O41.1425 | Placentitis, second trimester, fetus 5 |
| O41.1429 | Placentitis, second trimester, other fetus |
| O41.1430 | Placentitis, third trimester, not applicable or unspecified |
| O41.1431 | Placentitis, third trimester, fetus 1 |
| O41.1432 | Placentitis, third trimester, fetus 2 |
| O41.1433 | Placentitis, third trimester, fetus 3 |
| O41.1434 | Placentitis, third trimester, fetus 4 |
| O41.1435 | Placentitis, third trimester, fetus 5 |
| O41.1439 | Placentitis, third trimester, other fetus |
| O41.1490 | Placentitis, unspecified trimester, not applicable or unspecified |
| O41.1491 | Placentitis, unspecified trimester, fetus 1 |
| O41.1492 | Placentitis, unspecified trimester, fetus 2 |
| O41.1493 | Placentitis, unspecified trimester, fetus 3 |
| O41.1494 | Placentitis, unspecified trimester, fetus 4 |
| O41.1495 | Placentitis, unspecified trimester, fetus 5 |
| O41.1499 | Placentitis, unspecified trimester, other fetus |
