2026 ICD-10-CM Diagnosis Code N49.0Inflammatory disorders of seminal vesicle

ICD-10-CM Codes›N00–N99›N40-N53›N49

ICD-10-CM N49.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N49.0 is a billable ICD-10-CM diagnosis code for inflammatory disorders of seminal vesicle. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 727 through 728. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Inflammatory conditions of male genital organs.

Code Identity

ICD-10-CM Code
N49.0
Billable Status
Yes — Valid for Submission
Code Describes
Inflammatory disorders of seminal vesicle
Short Description
Inflammatory disorders of seminal vesicle
Same as the full description in the CMS dataset.
Parent Code
N49
Inflammatory disorders of male genital organs, not elsewhere classified

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN40-N53Diseases of male genital organs
CategoryN49Inflammatory disorders of male genital organs, not elsewhere classified
This CodeN49.0Inflammatory disorders of seminal vesicle

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abscess of seminal vesicle
  • Acute gonococcal seminal vesiculitis
  • Acute gonorrhea of lower genitourinary tract
  • Cellulitis of seminal vesicle
  • Chronic gonococcal seminal vesiculitis
  • Chronic gonorrhea lower genitourinary tract
  • Gonococcal seminal vesiculitis
  • Male pelvic abscess
  • Seminal vesiculitis

Tabular List NotesGuidance

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

Inclusion Terms

  • Vesiculitis NOS

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.

    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • seminal vesicle
    • Carbuncle
      • seminal vesicle
    • Cellulitis(diffuse) (phlegmonous) (septic) (suppurative)
      • seminal vesicle
    • Furuncle
      • seminal vesicle
    • Seminal vesiculitis
    • Spermatocystitis
    • Vesiculitis(seminal)

Clinical ClassificationClinical

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

CCSR GEN013
Inflammatory conditions of male genital organs
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Penis Disorders

Problems with the penis can cause pain and affect a man's sexual function and fertility. Penis disorders include:

Read the full article at MedlinePlus

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

Convert N49.0 to ICD-9-CMHistory

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

ICD-9-CM
608.0 Seminal vesiculitis
Exact Match The mapping is direct, with no qualifiers.

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 N49.0Overview

Is N49.0 a billable code?

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

What MS-DRG does N49.0 group to?

When inflammatory disorders of seminal vesicle is the principal diagnosis on an inpatient stay, it groups to MS-DRG 727, 728, with relative weights from 0.8112 to 1.4829 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N49.0?

Under the General Equivalence Mappings, inflammatory disorders of seminal vesicle converts to ICD-9-CM 608.0 (seminal vesiculitis). The mapping is a direct match.

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.