- O42.0 Premature rupture of membranes, onset of labor within 24 hours of rupture

-- O42.00 Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation

-- O42.01 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture

--- O42.011 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, first trimester

--- O42.012 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester

--- O42.013 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester

--- O42.019 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified trimester

-- O42.02 Full-term premature rupture of membranes, onset of labor within 24 hours of rupture

- O42.1 Premature rupture of membranes, onset of labor more than 24 hours following rupture

-- O42.10 Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation

-- O42.11 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture

--- O42.111 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimester

--- O42.112 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester

--- O42.113 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, third trimester

--- O42.119 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified trimester

-- O42.12 Full-term premature rupture of membranes, onset of labor more than 24 hours following rupture

- O42.9 Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor

-- O42.90 Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation

-- 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

--- O42.912 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, second trimester

--- O42.913 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, third trimester

--- O42.919 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified trimester

-- O42.92 Full-term premature rupture of membranes, unspecified as to length of time between rupture and onset of labor