ICD-10-CM diagnosis code
O42.013 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester
- Billable
- Yes, a complete code (FY2026)
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Other codes in O42
18 complete codes in this category.
- O42.00Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation
- O42.011Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, first trimester
- O42.012Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester
- O42.013Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester
- O42.019Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified trimester
- O42.02Full-term premature rupture of membranes, onset of labor within 24 hours of rupture
- O42.10Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation
- O42.111Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimester
- O42.112Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester
- O42.113Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, third trimester
- O42.119Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified trimester
- O42.12Full-term premature rupture of membranes, onset of labor more than 24 hours following rupture
Documentation tips
- Make sure the note supports every element of the title, “Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to O42.
The international WHO ICD-10 also has O42, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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