O26 - Maternal care for other conditions predominantly related to pregnancy
O26.0 - Excessive weight gain in pregnancy
Excludes 2:
-gestational edema O12.0,O12.2)
O26.00 - Excessive weight gain in pregnancy, unspecified trimester
O26.01 - Excessive weight gain in pregnancy, first trimester
O26.02 - Excessive weight gain in pregnancy, second trimester
O26.03 - Excessive weight gain in pregnancy, third trimester