ICD-10-CM > O00-O9A > O30-O48 > O43 > O43.8 O43.8 Other placental disorders Non-Billable/Non-Specific Codes O43.81Placental infarctionO43.811Placental infarction, first trimesterO43.812Placental infarction, second trimesterO43.813Placental infarction, third trimesterO43.819Placental infarction, unspecified trimesterO43.89Other placental disordersO43.891Other placental disorders, first trimesterO43.892Other placental disorders, second trimesterO43.893Other placental disorders, third trimesterO43.899Other placental disorders, unspecified trimester