| O43 | Placental disorders | NON-BILLABLE CODE |
| O43.0 | Placental transfusion syndromes | NON-BILLABLE CODE |
| O43.01 | Fetomaternal placental transfusion syndrome | NON-BILLABLE CODE |
| O43.011 | Fetomaternal placental transfusion syndrome, first trimester | BILLABLE CODE |
| O43.012 | Fetomaternal placental transfusion syndrome, second trimester | BILLABLE CODE |
| O43.013 | Fetomaternal placental transfusion syndrome, third trimester | BILLABLE CODE |
| O43.019 | Fetomaternal placental transfusion syndrome, unspecified trimester | BILLABLE CODE |
| O43.02 | Fetus-to-fetus placental transfusion syndrome | NON-BILLABLE CODE |
| O43.021 | Fetus-to-fetus placental transfusion syndrome, first trimester | BILLABLE CODE |
| O43.022 | Fetus-to-fetus placental transfusion syndrome, second trimester | BILLABLE CODE |
| O43.023 | Fetus-to-fetus placental transfusion syndrome, third trimester | BILLABLE CODE |
| O43.029 | Fetus-to-fetus placental transfusion syndrome, unspecified trimester | BILLABLE CODE |
| O43.1 | Malformation of placenta | NON-BILLABLE CODE |
| O43.10 | Malformation of placenta, unspecified | NON-BILLABLE CODE |
| O43.101 | Malformation of placenta, unspecified, first trimester | BILLABLE CODE |
| O43.102 | Malformation of placenta, unspecified, second trimester | BILLABLE CODE |
| O43.103 | Malformation of placenta, unspecified, third trimester | BILLABLE CODE |
| O43.109 | Malformation of placenta, unspecified, unspecified trimester | BILLABLE CODE |
| O43.11 | Circumvallate placenta | NON-BILLABLE CODE |
| O43.111 | Circumvallate placenta, first trimester | BILLABLE CODE |
| O43.112 | Circumvallate placenta, second trimester | BILLABLE CODE |
| O43.113 | Circumvallate placenta, third trimester | BILLABLE CODE |
| O43.119 | Circumvallate placenta, unspecified trimester | BILLABLE CODE |
| O43.12 | Velamentous insertion of umbilical cord | NON-BILLABLE CODE |
| O43.121 | Velamentous insertion of umbilical cord, first trimester | BILLABLE CODE |
| O43.122 | Velamentous insertion of umbilical cord, second trimester | BILLABLE CODE |
| O43.123 | Velamentous insertion of umbilical cord, third trimester | BILLABLE CODE |
| O43.129 | Velamentous insertion of umbilical cord, unspecified trimester | BILLABLE CODE |
| O43.19 | Other malformation of placenta | NON-BILLABLE CODE |
| O43.191 | Other malformation of placenta, first trimester | BILLABLE CODE |
| O43.192 | Other malformation of placenta, second trimester | BILLABLE CODE |
| O43.193 | Other malformation of placenta, third trimester | BILLABLE CODE |
| O43.199 | Other malformation of placenta, unspecified trimester | BILLABLE CODE |
| O43.2 | Morbidly adherent placenta | NON-BILLABLE CODE |
| O43.21 | Placenta accreta | NON-BILLABLE CODE |
| O43.211 | Placenta accreta, first trimester | BILLABLE CODE |
| O43.212 | Placenta accreta, second trimester | BILLABLE CODE |
| O43.213 | Placenta accreta, third trimester | BILLABLE CODE |
| O43.219 | Placenta accreta, unspecified trimester | BILLABLE CODE |
| O43.22 | Placenta increta | NON-BILLABLE CODE |
| O43.221 | Placenta increta, first trimester | BILLABLE CODE |
| O43.222 | Placenta increta, second trimester | BILLABLE CODE |
| O43.223 | Placenta increta, third trimester | BILLABLE CODE |
| O43.229 | Placenta increta, unspecified trimester | BILLABLE CODE |
| O43.23 | Placenta percreta | NON-BILLABLE CODE |
| O43.231 | Placenta percreta, first trimester | BILLABLE CODE |
| O43.232 | Placenta percreta, second trimester | BILLABLE CODE |
| O43.233 | Placenta percreta, third trimester | BILLABLE CODE |
| O43.239 | Placenta percreta, unspecified trimester | BILLABLE CODE |
| O43.8 | Other placental disorders | NON-BILLABLE CODE |
| O43.81 | Placental infarction | NON-BILLABLE CODE |
| O43.812 | Placental infarction, second trimester | BILLABLE CODE |
| O43.813 | Placental infarction, third trimester | BILLABLE CODE |
| O43.819 | Placental infarction, unspecified trimester | BILLABLE CODE |
| O43.89 | Other placental disorders | NON-BILLABLE CODE |
| O43.891 | Other placental disorders, first trimester | BILLABLE CODE |
| O43.892 | Other placental disorders, second trimester | BILLABLE CODE |
| O43.893 | Other placental disorders, third trimester | BILLABLE CODE |
| O43.899 | Other placental disorders, unspecified trimester | BILLABLE CODE |
| O43.9 | Unspecified placental disorder | NON-BILLABLE CODE |
| O43.90 | Unspecified placental disorder, unspecified trimester | BILLABLE CODE |
| O43.91 | Unspecified placental disorder, first trimester | BILLABLE CODE |
| O43.92 | Unspecified placental disorder, second trimester | BILLABLE CODE |
| O43.93 | Unspecified placental disorder, third trimester | BILLABLE CODE |
