O12 - Gestational [pregnancy-induced] edema and proteinuria without hypertension
O12.2 - Gestational edema with proteinuria
O12.20 - Gestational edema with proteinuria, unspecified trimester
O12.21 - Gestational edema with proteinuria, first trimester
O12.22 - Gestational edema with proteinuria, second trimester
O12.23 - Gestational edema with proteinuria, third trimester