ICD-10-CM > O00-O9A > O09-O09 > O09 > O09.4 O09.4 Supervision of pregnancy with grand multiparity Non-Billable/Non-Specific Codes O09.40Supervision of pregnancy with grand multiparity, unspecified trimesterO09.41Supervision of pregnancy with grand multiparity, first trimesterO09.42Supervision of pregnancy with grand multiparity, second trimesterO09.43Supervision of pregnancy with grand multiparity, third trimester