O20 Haemorrhage in early pregnancy
O21 Excessive vomiting in pregnancy
O22 Venous complications in pregnancy
O23 Infections of genitourinary tract in pregnancy
O24 Diabetes mellitus in pregnancy
O25 Malnutrition in pregnancy
O26 Maternal care for other conditions predominantly related to pregnancy
O28 Abnormal findings on antenatal screening of mother
O29 Complications of anaesthesia during pregnancy