O09.51 Supervision of elderly primigravidaNon-billable header with 4 child codes.
O09.511 Supervision of elderly primigravida, first trimesterO09.512 Supervision of elderly primigravida, second trimesterO09.513 Supervision of elderly primigravida, third trimesterO09.519 Supervision of elderly primigravida, unspecified trimesterZ34 Encounter for supervision of normal pregnancy ("encounter for supervision of high risk pregnancy (O09.-)")Z3A Weeks of gestation ("obstetric condition or encounter for delivery (O09-O60, O80-O82, O94-O9A)")O09.40 Supervision of pregnancy with grand multiparity, unspecified trimesterO09.41 Supervision of pregnancy with grand multiparity, first trimesterO09.42 Supervision of pregnancy with grand multiparity, second trimesterO09.43 Supervision of pregnancy with grand multiparity, third trimesterO09.5 Supervision of elderly primigravida and multigravidaO09.51 Supervision of elderly primigravida (this code)O09.511 Supervision of elderly primigravida, first trimesterO09.512 Supervision of elderly primigravida, second trimesterO09.513 Supervision of elderly primigravida, third trimesterO09.519 Supervision of elderly primigravida, unspecified trimesterO09.52 Supervision of elderly multigravida