| O31.23X0 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, not applicable or unspecified | BILLABLE CODE |
| O31.23X1 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 1 | BILLABLE CODE |
| O31.23X2 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 2 | BILLABLE CODE |
| O31.23X3 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 3 | BILLABLE CODE |
| O31.23X4 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 4 | BILLABLE CODE |
| O31.23X5 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 5 | BILLABLE CODE |
| O31.23X9 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, other fetus | BILLABLE CODE |
