O42.911 - Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester
O42.9 - Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor O42.91 - Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor O42.911 - Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester