2026 ICD-10-CM Diagnosis Code N49.1Inflammatory disorders of spermatic cord, tunica vaginalis and vas deferens

ICD-10-CM Codes›N00–N99›N40-N53›N49

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

N49.1 is a billable ICD-10-CM diagnosis code for inflammatory disorders of spermatic cord, tunica vaginalis and vas deferens. 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
N49.1
Billable Status
Yes — Valid for Submission
Code Describes
Inflammatory disorders of spermatic cord, tunica vaginalis and vas deferens
Short Description
Inflam disorders of sperm cord, tunica vaginalis and vas def
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 CodeN49.1Inflammatory disorders of spermatic cord, tunica vaginalis and vas deferens

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abscess of spermatic cord
  • Abscess of testis
  • Abscess of tunica vaginalis
  • Abscess of vas deferens
  • Boil of tunica vaginalis
  • Boil of vas deferens
  • Carbuncle of spermatic cord
  • Carbuncle of tunica vaginalis
  • Carbuncle of vas deferens
  • Cellulitis of spermatic cord
  • Cellulitis of vas deferens
  • Fibrosis of spermatic cord
  • Furuncle of male genital
  • Infection and fibrosis of spermatic cord remnant
  • Infection of spermatic cord
  • Infective orchitis
  • Inflammation of spermatic cord
  • Inflammation of tunica vaginalis
  • Inflammation of vas deferens
  • Proliferative vasitis nodosa
  • Vasitis

Tabular List NotesGuidance

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

Inclusion Terms

  • Vasitis

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)
      • spermatic cord
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • tunica vaginalis
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • vas deferens
    • Corditis(spermatic)
    • Deferentitis
    • Funiculitis(acute) (chronic) (endemic)
    • Gangrene, gangrenous(connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)
      • spermatic cord
    • Gangrene, gangrenous(connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)
      • tunica vaginalis
    • Gangrene, gangrenous(connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)
      • vas deferens
    • Infection, infected, infective(opportunistic)
      • spermatic cord NEC
    • Infection, infected, infective(opportunistic)
      • tunica vaginalis
    • Infection, infected, infective(opportunistic)
      • vas deferens NEC
    • Inflammation, inflamed, inflammatory(with exudation)
      • spermatic cord
    • Inflammation, inflamed, inflammatory(with exudation)
      • tunica vaginalis
    • Inflammation, inflamed, inflammatory(with exudation)
      • vas deferens
    • Perivasitis(chronic)
    • Vaginalitis(tunica) (testis)
    • Vas deferentitis
    • Vasitis(nodosa)

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 N49.1 to ICD-9-CMHistory

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

ICD-9-CM
608.4 Male gen inflam dis NEC
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 N49.1Overview

Is N49.1 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report inflammatory disorders of spermatic cord, tunica vaginalis and vas deferens on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N49.1 group to?

When inflammatory disorders of spermatic cord, tunica vaginalis and vas deferens 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 N49.1?

Under the General Equivalence Mappings, inflammatory disorders of spermatic cord, tunica vaginalis and vas deferens converts to ICD-9-CM 608.4 (male gen inflam dis NEC). 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.