A pregnancy resulting in multiple births should be counted as once pregnancy.
In multiple pregnancies with more than one type of outcome, the pregnancies should be recorded in the following order:
all live births
stillbirth
spontaneous abortion
induced abortion
ectopic pregnancy
Where the outcome was one stillbirth and one live birth, count as stillbirth.
If a previous pregnancy was a hydatidiform mole, code as spontaneous or induced abortion (or rarely, ectopic pregnancy), depending on the outcome.
Comments:
The number of previous pregnancies is an important component of the woman's reproductive history. Parity may be a risk factor for adverse maternal and perinatal outcomes.
A previous history of stillbirth identifies the mother as high risk for subsequent pregnancies.
