ICD-10-CM > O00-O9A > O60-O77 > O60 > O60.2 > O60.20 O60.20 Term delivery with preterm labor, unspecified trimester Non-Billable/Non-Specific Codes O60.20X0..., not applicable or unspecifiedO60.20X1..., fetus 1O60.20X2..., fetus 2O60.20X3..., fetus 3O60.20X4..., fetus 4O60.20X5..., fetus 5O60.20X9..., other fetus