O42.01
⚠ Non-billable (Header)Preterm premature rupture of membranes, onset of labor within 24 hours of rupture
Pregnancy, childbirth and the puerperium (O00-O9A)
⚠️ This is a category header code — not billable. Use a more specific child code below.
Also Known As
Premature rupture of membranes before 37 completed weeks of gestation
✅ No additional coding notes for O42.01
Child Codes (4)
O42.011Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, first trimesterO42.012Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimesterO42.013Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimesterO42.019Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified trimester
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CodeO42.01
BillableNo — Header code
ParentO42.0
CategoryPregnancy, childbirth and the puerperium (O00-O9A)
Excludes10 rule(s)
Excludes20 note(s)
Child codes4
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)