O42.91

Hierarchy

Where O42.91 sits in the official hierarchy. Each level is the code it is classified under.

1. O42 Premature rupture of membranes
2. O42.9 Parent Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor
3. O42.91 This code Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files.

• O42.911 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester Billable
• O42.912 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, second trimester Billable
• O42.913 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, third trimester Billable
• O42.919 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified trimester Billable

Version History

How O42.91 appears in each release imported from the official files, newest first.

1. FY 2027 Effective October 1, 2026

   Current

   Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor

2. FY 2026 Effective October 1, 2025

   Unchanged

   Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor