2026 ICD-10-CM Diagnosis Code A26.0Cutaneous erysipeloid

ICD-10-CM Codes›A00–B99›A20-A28›A26

ICD-10-CM A26.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A26.0 is a billable ICD-10-CM diagnosis code for cutaneous erysipeloid. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 867 through 869. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Bacterial infections.

Code Identity

ICD-10-CM Code
A26.0
Billable Status
Yes — Valid for Submission
Code Describes
Cutaneous erysipeloid
Short Description
Cutaneous erysipeloid
Same as the full description in the CMS dataset.
Parent Code
A26
Erysipeloid

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA20-A28Certain zoonotic bacterial diseases
CategoryA26Erysipeloid
This CodeA26.0Cutaneous erysipeloid

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Cutaneous erysipeloid
  • Disseminated cutaneous erysipeloid
  • Erysipeloid
  • Erysipelothrix
  • Infection caused by Erysipelothrix rhusiopathiae
  • Localized cutaneous erysipeloid

Tabular List NotesGuidance

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

Inclusion Terms

  • Erythema migrans

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.

    • Eruption
      • skin (nonspecific)
        • erysipeloid
    • Erysipeloid
      • cutaneous (Rosenbach's)
    • Erythema, erythematous(infectional) (inflammation)
      • migrans
    • Rosenbach's erysipeloid

Clinical ClassificationClinical

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

CCSR INF003
Bacterial infections
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Erysipelothrix

    a genus of gram-positive, facultatively anaerobic, rod-shaped bacteria that has a tendency to form long filaments. its organisms are widely distributed in nature and are found in mammals; birds; and fishes. erysipelothrix may appear gram-negative because they decolorize easily.

  • Erysipelothrix Infections

    infections with bacteria of the genus erysipelothrix.

  • Erysipeloid

    an infection caused by erysipelothrix rhusiopathiae that is almost wholly restricted to persons who in their occupation handle infected fish, shellfish, poultry, or meat. three forms of this condition exist: a mild localized form manifested by local swelling and redness of the skin; a diffuse form that might present with fever; and a rare systemic form associated with endocarditis.

Patient EducationClinical

Bacterial Infections

Bacteria are tiny organisms (living things) that have only one cell. Under a microscope, they look like balls, rods, or spirals. They can be found almost everywhere on Earth. There are lots of bacteria in and on your body. In fact, your body has about 10 times more bacteria cells than human cells.

The full article covers:

  • What are bacteria?
  • How do bacterial infections spread?
  • What are the treatments for bacterial infections?
  • Can bacterial infections be prevented?

Read the full article at MedlinePlus

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

Convert A26.0 to ICD-9-CMHistory

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

ICD-9-CM
027.1 Erysipelothrix infection
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 A26.0Overview

Is A26.0 (Erysipeloid) a billable code?

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

What MS-DRG does A26.0 group to?

When cutaneous erysipeloid is the principal diagnosis on an inpatient stay, it groups to MS-DRG 867, 868, 869, with relative weights from 0.7297 to 2.0932 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of A26.0?

Under the General Equivalence Mappings, cutaneous erysipeloid converts to ICD-9-CM 027.1 (erysipelothrix infection). 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.