Pretrm prem ROM, onset labor > 24 hours fol rupt, unsp tri

This code signifies a premature rupture of the amniotic sac (PPROM) where the onset of labor occurs more than 24 hours after the rupture. The specific gestational trimester at the time of rupture is not documented or is unknown. This condition increases the risk of infection and preterm birth.

Apply this code when documentation clearly indicates PPROM with a prolonged latency period (over 24 hours) between membrane rupture and the initiation of labor, and the trimester is not specified. This typically applies to cases where the exact gestational age at rupture is not precisely recorded or is ambiguous.

• Ensure documentation explicitly states "onset of labor more than 24 hours following rupture."
• If the trimester is known, a more specific code (O42.111, O42.112, O42.113) should be used instead.
• Do not use this code if labor began within 24 hours of rupture; refer to O42.0- codes.