O42.90 Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation

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The ICD-10-CM code for Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation is O42.90 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
O30-O48: Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
Category O42
25 codes (18 billable)
FY2026 Status
Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to O42.90:

  • Pregnancy (single) (uterine) › complicated by (care of) (management affected by) › hydrorrhea
  • Pregnancy (single) (uterine) › complicated by (care of) (management affected by) › premature rupture of membranes
  • Delivery (childbirth) (labor) › complicated › by › premature rupture, membranes

U.S. Hospital Utilization

  • An estimated 2,375 U.S. inpatient stays in 2023 included O42.90 among the documented diagnoses.
  • 1,440 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

References

Related Codes

Parent Code

O42 Premature rupture of membranes

Related Codes in O42

O42 Premature rupture of membranes O42.0 Premature rupture of membranes, onset of labor within 24 hours of rupture O42.00 Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation O42.01 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture 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 O42.1 Premature rupture of membranes, onset of labor more than 24 hours following rupture O42.10 Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation O42.11 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture 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 O42.9 Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor O42.91 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor O42.911 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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