O42

O42: Premature rupture of membranes

Non-billable headerICD-10-CM

O42 is a non-billable header ICD-10-CM code for premature rupture of membranes. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead O42

3 child codes. Green means billable.

O42.0Premature rupture of membranes, onset of labor within 24 hours of rupture
O42.1Premature rupture of membranes, onset of labor more than 24 hours following rupture
O42.9Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor