O42.12 – Full-term premature rupture of membranes, onset of labor more than 24 hours following rupture

ICD-10-CM 2027 diagnosis code · Maternal care related to the fetus and amniotic cavity and possible delivery problems

Billable code

ICD-10-CM code O42.12

Code: O42.12 (claims format: O4212)
Description: Full-term premature rupture of membranes, onset of labor more than 24 hours following rupture
Short description: Full-term premature ROM, onset labor > 24 hours fol rupture
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems
Parent codes: O42 › O42.1

Notes for O42.12

Applicable to:

Premature rupture of membranes at or after 37 completed weeks of gestation, onset of labor more than 24 hours following rupture

Index terms for O42.12

Entries in the ICD-10-CM alphabetic index that lead to this code:

Pregnancy, complicated by, premature rupture of membranes, with onset of labor, after 24 hours, at or after 37 weeks gestation, onset of labor more than 24 hours following rupture

Related codes in O42.1

Frequently asked questions

What is ICD-10 code O42.12?

O42.12 is the ICD-10-CM code for full-term premature rupture of membranes, onset of labor more than 24 hours following rupture, in the block O30-O48 (Maternal care related to the fetus and amniotic cavity and possible delivery problems).

Is O42.12 a billable code?

Yes. O42.12 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does O42.12 belong to?

It belongs to category O42 – Premature rupture of membranes.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.