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

This code signifies a pregnancy complication where the amniotic sac ruptures prematurely during the third trimester, and the onset of labor does not occur until more than 24 hours after the rupture. This condition, known as prolonged latency, increases the risk of maternal and fetal infection.

Apply this code when documentation clearly indicates premature rupture of membranes (PROM) occurring in the third trimester, followed by a latent period exceeding 24 hours before the onset of labor. This typically applies to cases where expectant management was initiated after PROM.

• Ensure documentation specifies the gestational age as third trimester and the time interval between rupture and labor onset.
• Distinguish from O42.112 (onset of labor within 24 hours) and O42.119 (unspecified time interval).
• Code any associated complications, such as chorioamnionitis, separately.