| O60.13X0 | Preterm labor second trimester with preterm delivery third trimester, not applicable or unspecified | BILLABLE CODE |
| O60.13X1 | Preterm labor second trimester with preterm delivery third trimester, fetus 1 | BILLABLE CODE |
| O60.13X2 | Preterm labor second trimester with preterm delivery third trimester, fetus 2 | BILLABLE CODE |
| O60.13X3 | Preterm labor second trimester with preterm delivery third trimester, fetus 3 | BILLABLE CODE |
| O60.13X4 | Preterm labor second trimester with preterm delivery third trimester, fetus 4 | BILLABLE CODE |
| O60.13X5 | Preterm labor second trimester with preterm delivery third trimester, fetus 5 | BILLABLE CODE |
| O60.13X9 | Preterm labor second trimester with preterm delivery third trimester, other fetus | BILLABLE CODE |
