2026 ICD-10-CM Diagnosis Code N99.81Other intraoperative complications of genitourinary system

ICD-10-CM Codes›N00–N99›N99›N99

ICD-10-CM N99.81
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N99.81 is a billable ICD-10-CM diagnosis code for other intraoperative complications of genitourinary system. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 698 through 700. Coders also document this condition as accidental organ perforation during a procedure. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative genitourinary system complication.

Code Identity

ICD-10-CM Code
N99.81
Billable Status
Yes — Valid for Submission
Code Describes
Other intraoperative complications of genitourinary system
Short Description
Other intraoperative complications of genitourinary system
Same as the full description in the CMS dataset.
Parent Code
N99.8
Other intraoperative and postprocedural complications and disorders of genitourinary system

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 CodeN99.81Other intraoperative complications of genitourinary system

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Accidental organ perforation during a procedure
  • Accidental perforation of urinary bladder during operation
  • Injury of ureter during surgery
  • Injury of urinary bladder during surgery
  • Perforation of urinary bladder
  • Traumatic perforation of urinary bladder

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.

    • Complication(s) (from) (of)
      • intraoperative (intraprocedural)
        • specified NEC
          • genitourinary system

Clinical ClassificationClinical

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

CCSR GEN026
Postprocedural or postoperative genitourinary system complication
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert N99.81 to ICD-9-CMHistory

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

ICD-9-CM
997.5 Surg compl-urinary tract
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 N99.81Overview

Is N99.81 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other intraoperative complications of genitourinary system on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N99.81 group to?

When other intraoperative complications of genitourinary system is the principal diagnosis on an inpatient stay, it groups to MS-DRG 698, 699, 700, with relative weights from 0.6899 to 1.6544 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N99.81?

Under the General Equivalence Mappings, other intraoperative complications of genitourinary system converts to ICD-9-CM 997.5 (surg compl-urinary tract). 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.