Pre-existing essential hypertension complicating pregnancy
Non-billable header
O10.01 is a non-billable header code. Use one of the more specific codes below.
Inclusion terms
Includes (from O10)
- pre-existing hypertension with pre-existing proteinuria complicating pregnancy, childbirth and the puerperium
- Note: CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
- Note: 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)
- Note: Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- Note: 1st trimester- less than 14 weeks 0 days
- Note: 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- Note: 3rd trimester- 28 weeks 0 days until delivery
Excludes1
Not coded here — never report together with this code.
Excludes2
Not included here — may be reported together when both conditions exist.
- mental and behavioral disorders associated with the puerperium (F53.-) (from O10)
- obstetrical tetanus (A34) (from O10)
- postpartum necrosis of pituitary gland (E23.0) (from O10)
- puerperal osteomalacia (M83.0) (from O10)
- pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-) (from O10)
Use additional code
Add a code to identify the following, if applicable.
Parent code
- O10.0Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperiumHeader
More specific codes O10.01
- O10.011Pre-existing essential hypertension complicating pregnancy, first trimesterBillable
- O10.012Pre-existing essential hypertension complicating pregnancy, second trimesterBillable
- O10.013Pre-existing essential hypertension complicating pregnancy, third trimesterBillable
- O10.019Pre-existing essential hypertension complicating pregnancy, unspecified trimesterBillable