ICD-10-CM > O00-O9A > O30-O48 > O43 > O43.9 O43.9 Unspecified placental disorder Non-Billable/Non-Specific Codes O43.90Unspecified placental disorder, unspecified trimesterO43.91Unspecified placental disorder, first trimesterO43.92Unspecified placental disorder, second trimesterO43.93Unspecified placental disorder, third trimester