O45 - Premature separation of placenta [abruptio placentae]
O45.8 - Other premature separation of placenta
O45.8X - Other premature separation of placenta
O45.8X1 - Other premature separation of placenta, first trimester
O45.8X2 - Other premature separation of placenta, second trimester
O45.8X3 - Other premature separation of placenta, third trimester
O45.8X9 - Other premature separation of placenta, unspecified trimester