ICD-10-CM > O00-O9A > O60-O77 > O60 > O60.1 O60.1 Preterm labor with preterm delivery Non-Billable/Non-Specific Codes O60.10Preterm labor with preterm delivery, unspecified trimesterO60.10X0..., not applicable or unspecifiedO60.10X1..., fetus 1O60.10X2..., fetus 2O60.10X3..., fetus 3O60.10X4..., fetus 4O60.10X5..., fetus 5O60.10X9..., other fetusO60.12Preterm labor second trimester with preterm delivery second trimesterO60.12X0..., not applicable or unspecifiedO60.12X1..., fetus 1O60.12X2..., fetus 2O60.12X3..., fetus 3O60.12X4..., fetus 4O60.12X5..., fetus 5O60.12X9..., other fetusO60.13Preterm labor second trimester with preterm delivery third trimesterO60.13X0..., not applicable or unspecifiedO60.13X1..., fetus 1O60.13X2..., fetus 2O60.13X3..., fetus 3O60.13X4..., fetus 4O60.13X5..., fetus 5O60.13X9..., other fetusO60.14Preterm labor third trimester with preterm delivery third trimesterO60.14X0..., not applicable or unspecifiedO60.14X1..., fetus 1O60.14X2..., fetus 2O60.14X3..., fetus 3O60.14X4..., fetus 4O60.14X5..., fetus 5O60.14X9..., other fetus