ICD-10 Code O42.9

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

Version 2019 Non-Billable Code

Not Valid for Submission

O42.9 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of premature rupture of membranes, unspecified as to length of time between rupture and onset of labor. The code is NOT valid for the year 2019 for the submission of HIPAA-covered transactions.

ICD-10: O42.9
Short Description:Premature ROM, unsp time betw rupture and onset of labor
Long Description:Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor

Consider the following ICD-10 codes with a higher level of specificity:

  • O42.90 - Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation
  • O42.91 - Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor
  • O42.911 - Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester
  • O42.912 - Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, second trimester
  • O42.913 - Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, third trimester
  • O42.919 - Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified trimester
  • O42.92 - Full-term premature rupture of membranes, unspecified as to length of time between rupture and onset of labor

Code Classification

  • Pregnancy, childbirth and the puerperium (O00–O99)
    • Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
      • Premature rupture of membranes (O42)

Code History

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

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

  • Preterm (premature) labor, when labor starts before 37 completed weeks of pregnancy
  • Problems with the umbilical cord
  • Problems with the position of the baby, such as breech, in which the baby is going to come out feet first
  • Birth injuries

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

  • Assisted delivery with forceps (Medical Encyclopedia)
  • Brachial plexus injury in newborns (Medical Encyclopedia)
  • Breech birth (Medical Encyclopedia)
  • Caput succedaneum (Medical Encyclopedia)
  • Meconium aspiration syndrome (Medical Encyclopedia)
  • Premature rupture of membranes (Medical Encyclopedia)

[Learn More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.