| ICD-10 Code | Description |
| O60.10X0 | Preterm labor with preterm delivery, unspecified trimester, not applicable or unspecified |
| O60.10X1 | Preterm labor with preterm delivery, unspecified trimester, fetus 1 |
| O60.10X2 | Preterm labor with preterm delivery, unspecified trimester, fetus 2 |
| O60.10X3 | Preterm labor with preterm delivery, unspecified trimester, fetus 3 |
| O60.10X4 | Preterm labor with preterm delivery, unspecified trimester, fetus 4 |
| O60.10X5 | Preterm labor with preterm delivery, unspecified trimester, fetus 5 |
| O60.10X9 | Preterm labor with preterm delivery, unspecified trimester, other fetus |
| O60.12X0 | Preterm labor second trimester with preterm delivery second trimester, not applicable or unspecified |
| O60.12X1 | Preterm labor second trimester with preterm delivery second trimester, fetus 1 |
| O60.12X2 | Preterm labor second trimester with preterm delivery second trimester, fetus 2 |
| O60.12X3 | Preterm labor second trimester with preterm delivery second trimester, fetus 3 |
| O60.12X4 | Preterm labor second trimester with preterm delivery second trimester, fetus 4 |
| O60.12X5 | Preterm labor second trimester with preterm delivery second trimester, fetus 5 |
| O60.12X9 | Preterm labor second trimester with preterm delivery second trimester, other fetus |
| O60.13X0 | Preterm labor second trimester with preterm delivery third trimester, not applicable or unspecified |
| O60.13X1 | Preterm labor second trimester with preterm delivery third trimester, fetus 1 |
| O60.13X2 | Preterm labor second trimester with preterm delivery third trimester, fetus 2 |
| O60.13X3 | Preterm labor second trimester with preterm delivery third trimester, fetus 3 |
| O60.13X4 | Preterm labor second trimester with preterm delivery third trimester, fetus 4 |
| O60.13X5 | Preterm labor second trimester with preterm delivery third trimester, fetus 5 |
| O60.13X9 | Preterm labor second trimester with preterm delivery third trimester, other fetus |
| O60.14X0 | Preterm labor third trimester with preterm delivery third trimester, not applicable or unspecified |
| O60.14X1 | Preterm labor third trimester with preterm delivery third trimester, fetus 1 |
| O60.14X2 | Preterm labor third trimester with preterm delivery third trimester, fetus 2 |
| O60.14X3 | Preterm labor third trimester with preterm delivery third trimester, fetus 3 |
| O60.14X4 | Preterm labor third trimester with preterm delivery third trimester, fetus 4 |
| O60.14X5 | Preterm labor third trimester with preterm delivery third trimester, fetus 5 |
| O60.14X9 | Preterm labor third trimester with preterm delivery third trimester, other fetus |
