ICD-10-CM > O00-O9A > O30-O48 > O43 > O43.2 O43.2 Morbidly adherent placenta Non-Billable/Non-Specific Code Also associated third stage postpartum hemorrhage, if applicable (O72.0) Type 1 Excludes retained placenta (O73.-) Codes O43.21Placenta accretaO43.211Placenta accreta, first trimesterO43.212Placenta accreta, second trimesterO43.213Placenta accreta, third trimesterO43.219Placenta accreta, unspecified trimesterO43.22Placenta incretaO43.221Placenta increta, first trimesterO43.222Placenta increta, second trimesterO43.223Placenta increta, third trimesterO43.229Placenta increta, unspecified trimesterO43.23Placenta percretaO43.231Placenta percreta, first trimesterO43.232Placenta percreta, second trimesterO43.233Placenta percreta, third trimesterO43.239Placenta percreta, unspecified trimester