2026 ICD-10-CM Diagnosis Code N99.2Postprocedural adhesions of vagina

ICD-10-CM Codes›N00–N99›N99›N99

ICD-10-CM N99.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N99.2 is a billable ICD-10-CM diagnosis code for postprocedural adhesions of vagina. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 742 through 743, 760 through 761. Coders also document this condition as adhesion of vagina following radiotherapy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders and Postprocedural or postoperative genitourinary system complication.

Code Identity

ICD-10-CM Code
N99.2
Billable Status
Yes — Valid for Submission
Code Describes
Postprocedural adhesions of vagina
Short Description
Postprocedural adhesions of vagina
Same as the full description in the CMS dataset.
Parent Code
N99
Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN99Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified
CategoryN99Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified
This CodeN99.2Postprocedural adhesions of vagina

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Adhesion of vagina following radiotherapy
  • Postoperative adhesions of vagina
  • Vaginal adhesions

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.

    • Adhesions, adhesive(postinfective)
      • postoperative (gastrointestinal tract)
        • vagina
    • Adhesions, adhesive(postinfective)
      • vagina (chronic)
        • postoperative
    • Cicatrix(adherent) (contracted) (painful) (vicious)
      • vagina
        • postoperative
    • Complication(s) (from) (of)
      • genitourinary
        • postprocedural
          • vaginal
            • adhesions
    • Scar, scarring
      • vagina
        • postoperative

Clinical ClassificationClinical

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

CCSR GEN025
Other specified female genital disorders
Default principal diagnosis: inpatient No · outpatient No
CCSR GEN026
Postprocedural or postoperative genitourinary system complication
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Adhesions

Adhesions are bands of scar-like tissue. Normally, internal tissues and organs have slippery surfaces so they can shift easily as the body moves. Adhesions cause tissues and organs to stick together. They might connect the loops of the intestines to each other, to nearby organs, or to the wall of the abdomen.

Read the full article at MedlinePlus

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

Convert N99.2 to ICD-9-CMHistory

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

ICD-9-CM
623.2 Stricture of vagina
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 N99.2Overview

Is N99.2 a billable code?

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

What MS-DRG does N99.2 group to?

When postprocedural adhesions of vagina is the principal diagnosis on an inpatient stay, it groups to MS-DRG 742, 743, 760, 761, with relative weights from 0.5696 to 1.8348 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N99.2?

Under the General Equivalence Mappings, postprocedural adhesions of vagina converts to ICD-9-CM 623.2 (stricture of vagina). 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.