delayed delivery of second twin, triplet, etc. (O63.2)
malpresentation of one fetus or more (O32.9)
placental transfusion syndromes (O43.0-)
One of the following 7th characters is to be assigned to each code under category O31. 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 a code from category O31 that has a 7th character of 1 through 9.
not applicable or unspecified
fetus 1
fetus 2
fetus 3
fetus 4
fetus 5
other fetus
O31.0
Papyraceous fetus
Fetus compressus
O31.00
Papyraceous fetus, unspecified trimester
O31.01
Papyraceous fetus, first trimester
O31.02
Papyraceous fetus, second trimester
O31.03
Papyraceous fetus, third trimester
O31.1
Continuing pregnancy after spontaneous abortion of one fetus or more
O31.10
Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester
O31.11
Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester
O31.12
Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester
O31.13
Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester
O31.2
Continuing pregnancy after intrauterine death of one fetus or more
O31.20
Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester
O31.21
Continuing pregnancy after intrauterine death of one fetus or more, first trimester
O31.22
Continuing pregnancy after intrauterine death of one fetus or more, second trimester
O31.23
Continuing pregnancy after intrauterine death of one fetus or more, third trimester
O31.3
Continuing pregnancy after elective fetal reduction of one fetus or more
Continuing pregnancy after selective termination of one fetus or more
O31.30
Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester
O31.31
Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester
O31.32
Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester
O31.33
Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester
O31.8
Other complications specific to multiple gestation
O31.8X
Other complications specific to multiple gestation
O31.8X1
Other complications specific to multiple gestation, first trimester
O31.8X2
Other complications specific to multiple gestation, second trimester
O31.8X3
Other complications specific to multiple gestation, third trimester
O31.8X9
Other complications specific to multiple gestation, unspecified trimester