2026 ICD-10-CM Diagnosis Code N99.840Postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure

ICD-10-CM Codes›N00–N99›N99›N99

ICD-10-CM N99.840
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N99.840 is a billable ICD-10-CM diagnosis code for postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 919 through 921. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative genitourinary system complication.

Code Identity

ICD-10-CM Code
N99.840
Billable Status
Yes — Valid for Submission
Code Describes
Postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure
Short Description
Postproc hematoma of a GU sys org fol a GU sys procedure
Parent Code
N99.84
Postprocedural hematoma and seroma of a genitourinary system organ or structure following a procedure

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 CodeN99.840Postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure

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)
      • postprocedural
        • hematoma (of)
          • genitourinary organ or structure
            • following procedure on genitourinary organ or structure

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 N99.840 to ICD-9-CMHistory

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

ICD-9-CM
998.12 Hematoma complic proc
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement N99.840 replaces the following previously assigned code(s):

  • N99.820 - Postproc hemor of a GU sys org following a GU sys procedure
  • N99.820 - Postproc hemor/hemtom of a GU sys org fol a GU sys procedure
FY 2018AddedAdded to the ICD-10-CM code setEffective October 1, 2017.
FY 2019–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N99.840Overview

Is N99.840 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N99.840 group to?

When postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure is the principal diagnosis on an inpatient stay, it groups to MS-DRG 919, 920, 921, with relative weights from 0.6884 to 1.8308 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N99.840?

Under the General Equivalence Mappings, postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure converts to ICD-9-CM 998.12 (hematoma complic proc). 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.