Section
O11
Pre-existing hypertension with pre-eclampsia
Hierarchy
-
O00-O9A Pregnancy, childbirth and the puerperium (O00-O9A)
-
O10-O16 Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
-
O11 Pre-existing hypertension with pre-eclampsia
-
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
-
-
-
Notes
-
CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
-
Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
-
Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
-
1st trimester- less than 14 weeks 0 days
-
2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
-
3rd trimester- 28 weeks 0 days until delivery
Use Additional
O11
-
code from O10 to identify the type of hypertension
-
code from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Includes
O11
-
conditions in Ol0 complicated by pre-eclampsia
-
pre-eclampsia superimposed pre-existing hypertension