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

This code signifies the spontaneous rupture of the amniotic sac before the onset of labor and prior to 37 weeks of gestation, where labor commences within 24 hours of the rupture. It specifically indicates that the trimester of pregnancy at the time of rupture is not documented. This condition significantly increases the risk of maternal and fetal complications.

Use this code when documentation confirms preterm premature rupture of membranes (PPROM) followed by the onset of labor within 24 hours, and the specific trimester is not specified. This typically occurs in scenarios where the patient presents with fluid leakage and subsequent contractions, and the gestational age is less than 37 weeks.

• Ensure documentation clearly states labor onset occurred within 24 hours of membrane rupture.
• Avoid using this code if the trimester is known; instead, select the more specific code (O42.011, O42.012, or O42.013).
• Always sequence this code as a principal diagnosis when it is the reason for the admission or encounter.