ICD-10-CM O43: Placental disorders

ICD-10-CM Diagnosis Code (2025)

Official Description for O43

Placental disorders

Coding Notes & Guidelines for O43

Excludes1: Not Coded Here

retained placenta (O73.-)

Excludes2: Not Included Here
  • maternal care for poor fetal growth due to placental insufficiency (O36.5-)
  • placenta previa (O44.-)
  • placental polyp (O90.89)
  • placentitis (O41.14-)
  • premature separation of placenta [abruptio placentae] (O45.-)
Inclusion Terms

Maternofetal placental transfusion syndrome

Inclusion Terms

Abnormal placenta NOS

Inclusion Terms

Placental dysfunction

Code Also

associated third stage postpartum hemorrhage, if applicable (O72.0)

Child Codes (More Specific Codes for O43):

O43.0 - Placental transfusion syndromes O43.01 - Fetomaternal placental transfusion syndrome 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 O43.02 - Fetus-to-fetus placental transfusion syndrome 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 O43.1 - Malformation of placenta O43.10 - Malformation of placenta, unspecified 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 O43.11 - Circumvallate placenta O43.111 - Circumvallate placenta, first trimester O43.112 - Circumvallate placenta, second trimester O43.113 - Circumvallate placenta, third trimester O43.119 - Circumvallate placenta, unspecified trimester O43.12 - Velamentous insertion of umbilical cord 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 O43.19 - Other malformation of placenta 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 O43.2 - Morbidly adherent placenta O43.21 - Placenta accreta O43.211 - Placenta accreta, first trimester O43.212 - Placenta accreta, second trimester O43.213 - Placenta accreta, third trimester O43.219 - Placenta accreta, unspecified trimester O43.22 - Placenta increta O43.221 - Placenta increta, first trimester O43.222 - Placenta increta, second trimester O43.223 - Placenta increta, third trimester O43.229 - Placenta increta, unspecified trimester O43.23 - Placenta percreta O43.231 - Placenta percreta, first trimester O43.232 - Placenta percreta, second trimester O43.233 - Placenta percreta, third trimester O43.239 - Placenta percreta, unspecified trimester O43.8 - Other placental disorders O43.81 - Placental infarction O43.811 - Placental infarction, first trimester O43.812 - Placental infarction, second trimester O43.813 - Placental infarction, third trimester O43.819 - Placental infarction, unspecified trimester O43.89 - Other placental disorders 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 O43.9 - Unspecified placental disorder 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

About ICD-10-CM Code O43 (Placental disorders)

ICD-10-CM code O43 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM O43 became effective on October 1, 2024.

This page provides detailed information about O43 - Placental disorders. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Placental disorders.