Is O43 a billable code?
No. O43 is a header code that groups 48 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
O43: Placental disorders
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
O43 groups related diagnoses under placental disorders. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under O43
- O43.011Fetomaternal placental transfusion syndrome, first trimester
- O43.012Fetomaternal placental transfusion syndrome, second trimester
- O43.013Fetomaternal placental transfusion syndrome, third trimester
- O43.019Fetomaternal placental transfusion syndrome, unspecified trimester
- O43.021Fetus-to-fetus placental transfusion syndrome, first trimester
- O43.022Fetus-to-fetus placental transfusion syndrome, second trimester
- O43.023Fetus-to-fetus placental transfusion syndrome, third trimester
- O43.029Fetus-to-fetus placental transfusion syndrome, unspecified trimester
- O43.101Malformation of placenta, unspecified, first trimester
- O43.102Malformation of placenta, unspecified, second trimester
- O43.103Malformation of placenta, unspecified, third trimester
- O43.109Malformation of placenta, unspecified, unspecified trimester
- O43.111Circumvallate placenta, first trimester
- O43.112Circumvallate placenta, second trimester
- O43.113Circumvallate placenta, third trimester
- O43.119Circumvallate placenta, unspecified trimester
- O43.121Velamentous insertion of umbilical cord, first trimester
- O43.122Velamentous insertion of umbilical cord, second trimester
- O43.123Velamentous insertion of umbilical cord, third trimester
- O43.129Velamentous insertion of umbilical cord, unspecified trimester
- O43.191Other malformation of placenta, first trimester
- O43.192Other malformation of placenta, second trimester
- O43.193Other malformation of placenta, third trimester
- O43.199Other malformation of placenta, unspecified trimester
- O43.211Placenta accreta, first trimester
- O43.212Placenta accreta, second trimester
- O43.213Placenta accreta, third trimester
- O43.219Placenta accreta, unspecified trimester
- O43.221Placenta increta, first trimester
- O43.222Placenta increta, second trimester
- O43.223Placenta increta, third trimester
- O43.229Placenta increta, unspecified trimester
- O43.231Placenta percreta, first trimester
- O43.232Placenta percreta, second trimester
- O43.233Placenta percreta, third trimester
- O43.239Placenta percreta, unspecified trimester
- O43.811Placental infarction, first trimester
- O43.812Placental infarction, second trimester
- O43.813Placental infarction, third trimester
- O43.819Placental infarction, unspecified trimester
- O43.891Other placental disorders, first trimester
- O43.892Other placental disorders, second trimester
- O43.893Other placental disorders, third trimester
- O43.899Other placental disorders, unspecified trimester
- O43.90Unspecified placental disorder, unspecified trimester
- O43.91Unspecified placental disorder, first trimester
- O43.92Unspecified placental disorder, second trimester
- O43.93Unspecified placental disorder, third trimester
O43 questions
What does O43 mean?
O43 is the ICD-10-CM code for Placental disorders. It is in chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.