2021 ICD-10-CM Code O42.112

Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester

Version 2021
Billable Code
Maternity Diagnoses
Diagnoses For Females Only
Second Trimester (14 to 27 Weeks)
MS-DRG Mapping

Valid for Submission

O42.112 is a billable diagnosis code used to specify a medical diagnosis of preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester. The code O42.112 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The code O42.112 is applicable to female patients aged 12 through 55 years inclusive. It is clinically and virtually impossible to use this code on a non-female patient outside the stated age range.

ICD-10:O42.112
Short Description:Pretrm prem ROM, onset labor > 24 hours fol rupt, second tri
Long Description:Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester

Code Classification

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

Convert O42.112 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code O42.112 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Childbirth Problems

While childbirth usually goes well, complications can happen. They can cause a risk to the mother, baby, or both. Possible complications include

For some of these problems, the baby may need to be delivered surgically by a Cesarean section.


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Preterm Labor

Also called: Early Labor, Premature Birth, Premature Labor, Preterm Birth

Preterm labor is labor that starts before 37 completed weeks of pregnancy. It can lead to premature birth. Premature babies may face serious health risks.

Symptoms of preterm labor include

If you think you might be having preterm labor, contact your health care provider.

NIH: National Institute of Child Health and Human Development


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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)