O42.1

ICD-10Non-billable category

Premature ROM, onset labor more than 24 hours fol rupture

Official ICD-10-CM descriptor (FY2026)

Premature rupture of membranes, onset of labor more than 24 hours following rupture

O42.1 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

ICD-10-CM FY2026 defines 3 codes beneath O42.1. See the ICD-10-CM index for what this site publishes.

Related codes in O42

Where this code sits

Parent code
O42

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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