2026 ICD-10-CM Diagnosis Code O90.1Disruption of perineal obstetric wound

ICD-10-CM Codes›O00-O9A›O85-O92›O90

ICD-10-CM O90.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O90.1 is a billable ICD-10-CM diagnosis code for disruption of perineal obstetric wound. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). Coders also document this condition as dehiscence of surgical wound. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complications specified during the puerperium.

Code Identity

ICD-10-CM Code
O90.1
Billable Status
Yes — Valid for Submission
Code Describes
Disruption of perineal obstetric wound
Short Description
Disruption of perineal obstetric wound
Same as the full description in the CMS dataset.
Parent Code
O90
Complications of the puerperium, not elsewhere classified

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO85-O92Complications predominantly related to the puerperium
CategoryO90Complications of the puerperium, not elsewhere classified
This CodeO90.1Disruption of perineal obstetric wound

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O90.1.

Maternity diagnoses
The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Dehiscence of surgical wound
  • Disruption of episiotomy wound in the puerperium
  • Disruption of perineal laceration repair in the puerperium
  • Obstetric perineal wound disruption
  • Perineal wound dehiscence
  • Secondary perineal tear in the puerperium

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Disruption of wound of episiotomy
  • Disruption of wound of perineal laceration
  • Secondary perineal tear

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Breakdown
      • perineum
    • Complication(s) (from) (of)
      • episiotomy, disruption
    • Complication(s) (from) (of)
      • perineal repair (obstetrical) NEC
        • disruption
    • Dehiscence(of)
      • episiotomy
    • Dehiscence(of)
      • perineal wound (postpartum)
    • Disruption(of)
      • wound
        • episiotomy
    • Disruption(of)
      • wound
        • perineal (obstetric)
    • Laceration
      • perineum
        • female
          • secondary (postpartal)
    • Puerperal, puerperium(complicated by, complications)
      • disruption
        • episiotomy wound
    • Puerperal, puerperium(complicated by, complications)
      • disruption
        • perineal laceration wound
    • Puerperal, puerperium(complicated by, complications)
      • secondary perineal tear
    • Tear, torn(traumatic)
      • perineal, secondary

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR PRG027
Complications specified during the puerperium
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Postpartum Care

Taking home a new baby is one of the happiest times in a woman's life. But it also presents both physical and emotional challenges. :

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert O90.1 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
674.22 Disrupt perin-del w p/p
Approximate The match is approximate rather than exact.
ICD-9-CM
674.24 Disrupt perineum-postpar
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About O90.1Overview

Is O90.1 (Complications of the puerperium, not elsewhere classified) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report disruption of perineal obstetric wound on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Who can O90.1 be reported for?

The Medicare Code Editor checks disruption of perineal obstetric wound against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.

What is the ICD-9 equivalent of O90.1?

Under the General Equivalence Mappings, disruption of perineal obstetric wound converts to ICD-9-CM 674.22 (disrupt perin-del w p/p) and 674.24 (disrupt perineum-postpar). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.