2021 ICD-10-CM Code O42.90

Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation

Version 2021
Billable Code
Unspecified Code
Maternity Diagnoses
Diagnoses For Females Only
MS-DRG Mapping

Valid for Submission

O42.90 is a billable diagnosis code used to specify a medical diagnosis of premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation. The code O42.90 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code O42.90 might also be used to specify conditions or terms like amniotic fluid leaking, hydrorrhea gravidarum, nitrazine yellow test for detection of rupture of amniotic membrane positive, oligohydramnios, oligohydramnios due to rupture of membranes , premature rupture of membranes, etc.

The code O42.90 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.

Unspecified diagnosis codes like O42.90 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

ICD-10:O42.90
Short Description:Prem ROM, 7th0 betw rupt & onst labr, unsp weeks of gest
Long Description:Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation

Code Classification

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code O42.90 are found in the index:

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:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert O42.90 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code O42.90 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.


[Learn More in MedlinePlus]

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)