O10.43

Pre-existing secondary hypertension complicating the puerperium

Billable / specific

O10.43 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

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

Not coded here — never report together with this code.

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)

Add a code to identify the following, if applicable.

code from I15 to identify the type of secondary hypertension (from O10.4)
code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known. (from O10)

O10.4Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperiumHeader