| ICD-10 Code | Description |
| O41.1010 | Infection of amniotic sac and membranes, unspecified, first trimester, not applicable or unspecified |
| O41.1011 | Infection of amniotic sac and membranes, unspecified, first trimester, fetus 1 |
| O41.1012 | Infection of amniotic sac and membranes, unspecified, first trimester, fetus 2 |
| O41.1013 | Infection of amniotic sac and membranes, unspecified, first trimester, fetus 3 |
| O41.1014 | Infection of amniotic sac and membranes, unspecified, first trimester, fetus 4 |
| O41.1015 | Infection of amniotic sac and membranes, unspecified, first trimester, fetus 5 |
| O41.1019 | Infection of amniotic sac and membranes, unspecified, first trimester, other fetus |
| O41.1020 | Infection of amniotic sac and membranes, unspecified, second trimester, not applicable or unspecified |
| O41.1021 | Infection of amniotic sac and membranes, unspecified, second trimester, fetus 1 |
| O41.1022 | Infection of amniotic sac and membranes, unspecified, second trimester, fetus 2 |
| O41.1023 | Infection of amniotic sac and membranes, unspecified, second trimester, fetus 3 |
| O41.1024 | Infection of amniotic sac and membranes, unspecified, second trimester, fetus 4 |
| O41.1025 | Infection of amniotic sac and membranes, unspecified, second trimester, fetus 5 |
| O41.1029 | Infection of amniotic sac and membranes, unspecified, second trimester, other fetus |
| O41.1030 | Infection of amniotic sac and membranes, unspecified, third trimester, not applicable or unspecified |
| O41.1031 | Infection of amniotic sac and membranes, unspecified, third trimester, fetus 1 |
| O41.1032 | Infection of amniotic sac and membranes, unspecified, third trimester, fetus 2 |
| O41.1033 | Infection of amniotic sac and membranes, unspecified, third trimester, fetus 3 |
| O41.1034 | Infection of amniotic sac and membranes, unspecified, third trimester, fetus 4 |
| O41.1035 | Infection of amniotic sac and membranes, unspecified, third trimester, fetus 5 |
| O41.1039 | Infection of amniotic sac and membranes, unspecified, third trimester, other fetus |
| O41.1090 | Infection of amniotic sac and membranes, unspecified, unspecified trimester, not applicable or unspecified |
| O41.1091 | Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 1 |
| O41.1092 | Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 2 |
| O41.1093 | Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 3 |
| O41.1094 | Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 4 |
| O41.1095 | Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 5 |
| O41.1099 | Infection of amniotic sac and membranes, unspecified, unspecified trimester, other fetus |
| O41.1210 | Chorioamnionitis, first trimester, not applicable or unspecified |
| O41.1211 | Chorioamnionitis, first trimester, fetus 1 |
| O41.1212 | Chorioamnionitis, first trimester, fetus 2 |
| O41.1213 | Chorioamnionitis, first trimester, fetus 3 |
| O41.1214 | Chorioamnionitis, first trimester, fetus 4 |
| O41.1215 | Chorioamnionitis, first trimester, fetus 5 |
| O41.1219 | Chorioamnionitis, first trimester, other fetus |
| O41.1220 | Chorioamnionitis, second trimester, not applicable or unspecified |
| O41.1221 | Chorioamnionitis, second trimester, fetus 1 |
| O41.1222 | Chorioamnionitis, second trimester, fetus 2 |
| O41.1223 | Chorioamnionitis, second trimester, fetus 3 |
| O41.1224 | Chorioamnionitis, second trimester, fetus 4 |
| O41.1225 | Chorioamnionitis, second trimester, fetus 5 |
| O41.1229 | Chorioamnionitis, second trimester, other fetus |
| O41.1230 | Chorioamnionitis, third trimester, not applicable or unspecified |
| O41.1231 | Chorioamnionitis, third trimester, fetus 1 |
| O41.1232 | Chorioamnionitis, third trimester, fetus 2 |
| O41.1233 | Chorioamnionitis, third trimester, fetus 3 |
| O41.1234 | Chorioamnionitis, third trimester, fetus 4 |
| O41.1235 | Chorioamnionitis, third trimester, fetus 5 |
| O41.1239 | Chorioamnionitis, third trimester, other fetus |
| O41.1290 | Chorioamnionitis, unspecified trimester, not applicable or unspecified |
| O41.1291 | Chorioamnionitis, unspecified trimester, fetus 1 |
| O41.1292 | Chorioamnionitis, unspecified trimester, fetus 2 |
| O41.1293 | Chorioamnionitis, unspecified trimester, fetus 3 |
| O41.1294 | Chorioamnionitis, unspecified trimester, fetus 4 |
| O41.1295 | Chorioamnionitis, unspecified trimester, fetus 5 |
| O41.1299 | Chorioamnionitis, unspecified trimester, other fetus |
| 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 |
