O10.9 Description: Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium ↓
O10 Description: Pre-existing hypertension complicating pregnancy, childbirth and the puerperium Exclude2:
pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-)
Include:
pre-existing hypertension with pre-existing proteinuria complicating pregnancy, childbirth and the puerperium
↓
O10-O16 Description: Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16) ↓
O00-O9A Description: Pregnancy, childbirth and the puerperium Exclude1:
supervision of normal pregnancy (Z34.-)
Exclude2:
mental and behavioral disorders associated with the puerperium (F53.-)
obstetrical tetanus (A34)
postpartum necrosis of pituitary gland (E23.0)
puerperal osteomalacia (M83.0)
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 Code:
code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.