O42 Premature rupture of membranes
ICD-10-CM category O42 sits in Chapter 15 (Pregnancy, childbirth and the puerperium, O00-O9A). It contains 18 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
O42.0 Premature ROM, onset of labor within 24 hours of ruptureO42.01 Preterm prem ROM, onset labor within 24 hours of ruptureO42.1 Premature ROM, onset labor more than 24 hours fol ruptureO42.11 Preterm premature ROM, onset labor > 24 hours fol ruptureO42.9 Premature ROM, unsp time betw rupture and onset of laborO42.91 Preterm prem ROM, unsp time betw rupture and onset labor
Billable codes in O42
| Code | Description |
|---|---|
O42.00 | Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation |
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 |
O42.10 | Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation |
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 |
O42.90 | Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation |
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 |
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