ICD-10 Code O42.012 - Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester

ICD-10-CM Diagnosis Code O42.012

Diagnosis Code: O42.012 (Raw: O42012)

Description: Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester

Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)

Fiscal Year: 2026

CMS Section 111 Status: Valid for reporting.

Overview & Clinical Details

ICD-10-CM code O42.012 is designated for Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester. In medical documentation and insurance billing, this code is utilized to specify medical diagnosis for patient records, reimbursement workflows, and compliance under CMS Section 111 mandatory insurer reporting guidelines.