• O10 Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
  • O11 Pre-existing hypertension with pre-eclampsia
  • O12 Gestational [pregnancy-induced] edema and proteinuria without hypertension
  • O13 Gestational [pregnancy-induced] hypertension without significant proteinuria
  • O14 Pre-eclampsia
  • O15 Eclampsia
  • O16 Unspecified maternal hypertension