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ICD-10-CM · FY 2026 APRIL UPDATE

O42

Premature rupture of membranes

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
O42.0Premature rupture of membranes, onset of labor within 24 hours of ruptureCategory
O42.00Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestationBillable
O42.01Preterm premature rupture of membranes, onset of labor within 24 hours of ruptureCategory
O42.011Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, first trimesterBillable
O42.012Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimesterBillable
O42.013Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimesterBillable
O42.019Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified trimesterBillable
O42.02Full-term premature rupture of membranes, onset of labor within 24 hours of ruptureBillable
O42.1Premature rupture of membranes, onset of labor more than 24 hours following ruptureCategory
O42.10Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestationBillable
O42.11Preterm premature rupture of membranes, onset of labor more than 24 hours following ruptureCategory
O42.111Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimesterBillable
O42.112Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimesterBillable
O42.113Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, third trimesterBillable
O42.119Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified trimesterBillable
O42.12Full-term premature rupture of membranes, onset of labor more than 24 hours following ruptureBillable
O42.9Premature rupture of membranes, unspecified as to length of time between rupture and onset of laborCategory
O42.90Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestationBillable
O42.91Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of laborCategory
O42.911Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimesterBillable
O42.912Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, second trimesterBillable
O42.913Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, third trimesterBillable
O42.919Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified trimesterBillable
O42.92Full-term premature rupture of membranes, unspecified as to length of time between rupture and onset of laborBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

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ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.