O10.311 - Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, first trimester
O10.3 - Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, childbirth and the puerperium O10.31 - Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy O10.311 - Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, first trimester