ICD-10-CM > O00-O9A > O30-O48 > O43 > O43.2 > O43.23 O43.23 Placenta percreta Non-Billable/Non-Specific Codes O43.231Placenta percreta, first trimesterO43.232Placenta percreta, second trimesterO43.233Placenta percreta, third trimesterO43.239Placenta percreta, unspecified trimester