Is O42 a billable code?
No. O42 is a header code that groups 18 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
O42: Premature rupture of membranes
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
O42 groups related diagnoses under premature rupture of membranes. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under O42
- O42.00Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation
- O42.011Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, first trimester
- O42.012Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester
- O42.013Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester
- O42.019Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified trimester
- O42.02Full-term premature rupture of membranes, onset of labor within 24 hours of rupture
- O42.10Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation
- O42.111Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimester
- O42.112Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester
- O42.113Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, third trimester
- O42.119Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified trimester
- O42.12Full-term premature rupture of membranes, onset of labor more than 24 hours following rupture
- O42.90Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation
- O42.911Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester
- O42.912Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, second trimester
- O42.913Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, third trimester
- O42.919Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified trimester
- O42.92Full-term premature rupture of membranes, unspecified as to length of time between rupture and onset of labor
O42 questions
What does O42 mean?
O42 is the ICD-10-CM code for Premature rupture of membranes. It is in chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.