2006 ICD-9-CM Volume 1 Diagnosis Codes > Complications Of Pregnancy, Childbirth, And The Puerperium 630-677 > Complications Mainly Related To Pregnancy 640-649 > 640 Hemorrhage in early pregnancy 641 Antepartum hemorrhage abruptio placentae and placenta previa 642 Hypertension complicating pregnancy childbirth and the puerperium 643 Excessive vomiting in pregnancy 644 Early or threatened labor 645 Late pregnancy 646 Other complications of pregnancy not elsewhere classified 647 Infectious and parasitic conditions in the mother classifiable elsewhere but complicating pregnancy childbirth or the puerperium 648 Other current conditions in the mother classifiable elsewhere but complicating pregnancy childbirth or the puerperium