2026 ICD-10-CM Diagnosis Code A26.9Erysipeloid, unspecified
ICD-10-CM Codes›A00–B99›A20-A28›A26
- Billable — Valid for Submission
- Not Chronic
A26.9 is a billable ICD-10-CM diagnosis code for erysipeloid, unspecified. 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. Coders also document this condition as erysipeloid. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Bacterial infections.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Erysipeloid
- Erysipelothrix
- Infection caused by Erysipelothrix rhusiopathiae
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Erysipeloid - A26.9
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Erysipeloid
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
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.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.
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 A26.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About A26.9Overview
Is A26.9 (Erysipeloid) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report erysipeloid, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does A26.9 group to?
When erysipeloid, unspecified 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 A26.9?
Under the General Equivalence Mappings, erysipeloid, unspecified 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.
