ICD-10 Diagnosis Code O42.90

Prem ROM, 7th0 betw rupt & onst labr, unsp weeks of gest

Diagnosis Code O42.90

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
This is the 2019 version of the ICD-10-CM diagnosis code O42.90

Valid for Submission
The code O42.90 is valid for submission for HIPAA-covered transactions.

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)

Version 2019 Billable Code Maternity Diagnoses Diagnoses For Females Only

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Maternity diagnoses - Maternity. Age range is 12–55 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).
Diagnoses for females only - Diagnoses for females only.

Diagnostic Related Groups
The diagnosis code O42.90 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9
  • 658.10 - Prem rupt membran-unspec (Approximate Flag)

  • Amniotic fluid leaking
  • Hydrorrhea gravidarum
  • Membrane rupture with delivery delay
  • Nitrazine yellow test for detection of rupture of amniotic membrane positive
  • Oligohydramnios
  • Oligohydramnios due to rupture of membranes
  • Premature rupture of membranes
  • Premature rupture of membranes - delivered
  • Premature rupture of membranes with antenatal problem
  • Premature rupture of membranes, labor delayed by therapy
  • Prolonged premature rupture of membranes
  • Prolonged rupture of membranes
  • Prolonged spontaneous rupture of membranes

Index to Diseases and Injuries
References found for the code O42.90 in the Index to Diseases and Injuries:

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)

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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.

Present on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

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