ICD-10-CM > O00-O9A > O30-O48 > O43 > O43.0 > O43.01 O43.01 Fetomaternal placental transfusion syndrome Non-Billable/Non-Specific Applicable To Maternofetal placental transfusion syndrome Codes O43.011Fetomaternal placental transfusion syndrome, first trimesterO43.012Fetomaternal placental transfusion syndrome, second trimesterO43.013Fetomaternal placental transfusion syndrome, third trimesterO43.019Fetomaternal placental transfusion syndrome, unspecified trimester