Pretrm prem ROM, onset labor w/n 24 hours of rupt, 2nd tri

This code signifies the premature rupture of the amniotic sac (water breaking) before 37 weeks of gestation, specifically occurring during the second trimester (14 weeks 0 days to 27 weeks 6 days). Crucially, it indicates that active labor commenced within 24 hours of this membrane rupture.

Apply this code when documentation confirms preterm premature rupture of membranes (PPROM) in the second trimester, followed by the spontaneous onset of labor within a 24-hour timeframe. This is typically seen in cases where a patient presents with fluid leakage and subsequently progresses to contractions and cervical changes within a day.

• Ensure documentation explicitly states both "preterm premature rupture of membranes" and "onset of labor within 24 hours" for accurate code assignment.
• Verify the gestational age falls within the second trimester (14 weeks 0 days to 27 weeks 6 days).
• Differentiate from codes for PPROM without labor onset within 24 hours (O42.1-) or PPROM in other trimesters.