O10.41 Pre-existing secondary hypertension complicating pregnancyNon-billable header with 4 child codes.
O10.411 Pre-existing secondary hypertension complicating pregnancy, first trimesterO10.412 Pre-existing secondary hypertension complicating pregnancy, second trimesterO10.413 Pre-existing secondary hypertension complicating pregnancy, third trimesterO10.419 Pre-existing secondary hypertension complicating pregnancy, unspecified trimesterI10 Essential (primary) hypertension ("hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)")O11 Pre-existing hypertension with pre-eclampsia ("code from O10 to identify the type of hypertension")O99.4 Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium ("hypertensive disorders (O10-O16)")O10.313 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, third trimesterO10.319 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, unspecified trimesterO10.32 Pre-existing hypertensive heart and chronic kidney disease complicating childbirthO10.33 Pre-existing hypertensive heart and chronic kidney disease complicating the puerperiumO10.4 Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperiumO10.41 Pre-existing secondary hypertension complicating pregnancy (this code)O10.411 Pre-existing secondary hypertension complicating pregnancy, first trimesterO10.412 Pre-existing secondary hypertension complicating pregnancy, second trimesterO10.413 Pre-existing secondary hypertension complicating pregnancy, third trimesterO10.419 Pre-existing secondary hypertension complicating pregnancy, unspecified trimesterO10.42 Pre-existing secondary hypertension complicating childbirth