O33.3 Maternal care for disproportion due to outlet contraction of pelvis

Maternal care for disproportion due to mid-cavity contraction (pelvis)
Maternal care for disproportion due to outlet contraction (pelvis)

7th character: One of the following 7th characters is to be assigned to code O33.3. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.3 with a 7th character of 1 through 9.
7th character definitions: not applicable or unspecified
fetus 1
fetus 2
fetus 3
fetus 4
fetus 5
other fetus