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

O42.01 is the ICD-10-CM diagnosis code for preterm premature rupture of membranes, onset of labor within 24 hours of rupture. It belongs to category O42 (premature rupture of membranes), block O30-O48 (maternal care related to the fetus and amniotic cavity and possible delivery problems) and chapter 15 (pregnancy, childbirth and the puerperium). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within O42.0 (premature rupture of membranes, onset of labor within 24 hours of rupture), O42.01 is specifically for preterm premature rupture of membranes, onset of labor within 24 hours of rupture. Related codes cover unspecified weeks of gestation (O42.00) and full-term premature rupture of membranes, onset of labor within 24 hours of rupture (O42.02).

To report this condition, pick the subcode that matches the documentation: O42.011 (first trimester), O42.012 (second trimester), O42.013 (third trimester) and O42.019 (unspecified trimester).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.