O31.8 Other complications specific to multiple gestationNon-billable header with 1 child codes.
O31.8X Other complications specific to multiple gestationO31.33X2 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 2O31.33X3 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 3O31.33X4 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 4O31.33X5 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 5O31.33X9 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, other fetusO31.8 Other complications specific to multiple gestation (this code)O31.8X Other complications specific to multiple gestationO31.8X1 Other complications specific to multiple gestation, first trimesterO31.8X10 Other complications specific to multiple gestation, first trimester, not applicable or unspecifiedO31.8X11 Other complications specific to multiple gestation, first trimester, fetus 1O31.8X12 Other complications specific to multiple gestation, first trimester, fetus 2