O15.0 Eclampsia complicating pregnancyNon-billable header with 3 child codes.
O15.00 Eclampsia complicating pregnancy, unspecified trimesterO15.02 Eclampsia complicating pregnancy, second trimesterO15.03 Eclampsia complicating pregnancy, third trimesterI10 Essential (primary) hypertension ("hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)")I16.1 Hypertensive emergency ("eclampsia (O15.-)")O99.4 Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium ("hypertensive disorders (O10-O16)")O15 EclampsiaO15.0 Eclampsia complicating pregnancy (this code)O15.00 Eclampsia complicating pregnancy, unspecified trimesterO15.02 Eclampsia complicating pregnancy, second trimesterO15.03 Eclampsia complicating pregnancy, third trimesterO15.1 Eclampsia complicating laborO15.2 Eclampsia complicating the puerperium