O99.0 - Anemia complicating pregnancy, childbirth and the puerperium
O99.01 - Anemia complicating pregnancy
O99.011 - Anemia complicating pregnancy, first trimester
O99.012 - Anemia complicating pregnancy, second trimester
O99.013 - Anemia complicating pregnancy, third trimester
O99.019 - Anemia complicating pregnancy, unspecified trimester