Category: O11 - Pre-existing hypertension with pre-eclampsia

 Chapter Notes

 O11

Pre-existing hypertension with pre-eclampsia

conditions in O10 complicated by pre-eclampsia

pre-eclampsia superimposed pre-existing hypertension

Use additional code from O10 to identify the type of hypertension

 O11.1

Pre-existing hypertension with pre-eclampsia, first trimester

 O11.2

Pre-existing hypertension with pre-eclampsia, second trimester

 O11.3

Pre-existing hypertension with pre-eclampsia, third trimester

 O11.4

Pre-existing hypertension with pre-eclampsia, complicating childbirth

 O11.5

Pre-existing hypertension with pre-eclampsia, complicating the puerperium

 O11.9

Pre-existing hypertension with pre-eclampsia, unspecified trimester