O09.51 - Supervision of elderly primigravida O09.5 - Supervision of elderly primigravida and multigravida O09.51 - Supervision of elderly primigravida
O09.511 - Supervision of elderly primigravida, first trimester O09.512 - Supervision of elderly primigravida, second trimester O09.513 - Supervision of elderly primigravida, third trimester O09.519 - Supervision of elderly primigravida, unspecified trimester