ICD-10-CM > O00-O9A > O30-O48 > O43 > O43.2 > O43.22 O43.22 Placenta increta Non-Billable/Non-Specific Codes O43.221Placenta increta, first trimesterO43.222Placenta increta, second trimesterO43.223Placenta increta, third trimesterO43.229Placenta increta, unspecified trimester