O43 Placental disorders
ICD-10-CM category O43 sits in Chapter 15 (Pregnancy, childbirth and the puerperium, O00-O9A). It contains 48 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
O43.0 Placental transfusion syndromesO43.01 Fetomaternal placental transfusion syndromeO43.02 Fetus-to-fetus placental transfusion syndromeO43.1 Malformation of placentaO43.10 Malformation of placenta, unspecifiedO43.11 Circumvallate placentaO43.12 Velamentous insertion of umbilical cordO43.19 Other malformation of placentaO43.2 Morbidly adherent placentaO43.21 Placenta accretaO43.22 Placenta incretaO43.23 Placenta percretaO43.8 Other placental disordersO43.81 Placental infarctionO43.89 Other placental disordersO43.9 Unspecified placental disorder
Billable codes in O43
| Code | Description |
|---|---|
O43.011 | Fetomaternal placental transfusion syndrome, first trimester |
O43.012 | Fetomaternal placental transfusion syndrome, second trimester |
O43.013 | Fetomaternal placental transfusion syndrome, third trimester |
O43.019 | Fetomaternal placental transfusion syndrome, unspecified trimester |
O43.021 | Fetus-to-fetus placental transfusion syndrome, first trimester |
O43.022 | Fetus-to-fetus placental transfusion syndrome, second trimester |
O43.023 | Fetus-to-fetus placental transfusion syndrome, third trimester |
O43.029 | Fetus-to-fetus placental transfusion syndrome, unspecified trimester |
O43.101 | Malformation of placenta, unspecified, first trimester |
O43.102 | Malformation of placenta, unspecified, second trimester |
O43.103 | Malformation of placenta, unspecified, third trimester |
O43.109 | Malformation of placenta, unspecified, unspecified trimester |
O43.111 | Circumvallate placenta, first trimester |
O43.112 | Circumvallate placenta, second trimester |
O43.113 | Circumvallate placenta, third trimester |
O43.119 | Circumvallate placenta, unspecified trimester |
O43.121 | Velamentous insertion of umbilical cord, first trimester |
O43.122 | Velamentous insertion of umbilical cord, second trimester |
O43.123 | Velamentous insertion of umbilical cord, third trimester |
O43.129 | Velamentous insertion of umbilical cord, unspecified trimester |
O43.191 | Other malformation of placenta, first trimester |
O43.192 | Other malformation of placenta, second trimester |
O43.193 | Other malformation of placenta, third trimester |
O43.199 | Other malformation of placenta, unspecified trimester |
O43.211 | Placenta accreta, first trimester |
O43.212 | Placenta accreta, second trimester |
O43.213 | Placenta accreta, third trimester |
O43.219 | Placenta accreta, unspecified trimester |
O43.221 | Placenta increta, first trimester |
O43.222 | Placenta increta, second trimester |
O43.223 | Placenta increta, third trimester |
O43.229 | Placenta increta, unspecified trimester |
O43.231 | Placenta percreta, first trimester |
O43.232 | Placenta percreta, second trimester |
O43.233 | Placenta percreta, third trimester |
O43.239 | Placenta percreta, unspecified trimester |
O43.811 | Placental infarction, first trimester |
O43.812 | Placental infarction, second trimester |
O43.813 | Placental infarction, third trimester |
O43.819 | Placental infarction, unspecified trimester |
O43.891 | Other placental disorders, first trimester |
O43.892 | Other placental disorders, second trimester |
O43.893 | Other placental disorders, third trimester |
O43.899 | Other placental disorders, unspecified trimester |
O43.90 | Unspecified placental disorder, unspecified trimester |
O43.91 | Unspecified placental disorder, first trimester |
O43.92 | Unspecified placental disorder, second trimester |
O43.93 | Unspecified placental disorder, third trimester |
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