O15.0Non-Billable (Header)Eclampsia complicating pregnancyChild CodesO15.00Eclampsia complicating pregnancy, unspecified trimesterO15.02Eclampsia complicating pregnancy, second trimesterO15.03Eclampsia complicating pregnancy, third trimesterCode Hierarchy└O15Eclampsia└O15.0Eclampsia complicating pregnancy└O15.0Eclampsia complicating pregnancy