O42.9
⚠ Non-billable (Header)Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor
Pregnancy, childbirth and the puerperium (O00-O9A)
⚠️ This is a category header code — not billable. Use a more specific child code below.
✅ No additional coding notes for O42.9
Child Codes (3)
O42.90Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestationO42.91Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of laborO42.92Full-term premature rupture of membranes, unspecified as to length of time between rupture and onset of labor
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CodeO42.9
BillableNo — Header code
ParentO42
CategoryPregnancy, childbirth and the puerperium (O00-O9A)
Excludes10 rule(s)
Excludes20 note(s)
Child codes3
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)