O15 EclampsiaNon-billable header with 4 child codes.
O15.0 Eclampsia complicating pregnancyO15.1 Eclampsia complicating laborO15.2 Eclampsia complicating the puerperiumO15.9 Eclampsia, unspecified as to time periodI10 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)")I10 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)")