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O11

Non-Billable (Header)

Pre-existing hypertension with pre-eclampsia

Includes

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

Use Additional Code

  • code from O10 to identify the type of hypertension

Child 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

Code Hierarchy

└O11Pre-existing hypertension with pre-eclampsia
└O11Pre-existing hypertension with pre-eclampsia

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