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O11 Pre-existing hypertension with pre-eclampsia

Non-Billable/Non-Specific

Includes

  • conditions in O10 complicated by pre-eclampsia
  • pre-eclampsia superimposed pre-existing hypertension

Use Additional

  • code from O10 to identify the type of hypertension

Codes

  • O11.1Pre-existing hypertension with pre-eclampsia, first trimester
  • O11.2Pre-existing hypertension with pre-eclampsia, second trimester
  • O11.3Pre-existing hypertension with pre-eclampsia, third trimester
  • O11.4Pre-existing hypertension with pre-eclampsia, complicating childbirth
  • O11.5Pre-existing hypertension with pre-eclampsia, complicating the puerperium
  • O11.9Pre-existing hypertension with pre-eclampsia, unspecified trimester