2026 ICD-10-CM Diagnosis Code L02.92Furuncle, unspecified
ICD-10-CM Codes›L00–L99›L00-L08›L02
- Billable — Valid for Submission
- Not Chronic
L02.92 is a billable ICD-10-CM diagnosis code for furuncle, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 602 through 603. Coders also document this condition as blind boil. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Skin and subcutaneous tissue infections.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Blind boil
- Boils of multiple sites
- Deep bacterial folliculitis
- Deep folliculitis
- Furuncle
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Boil NOS
- Furunculosis NOS
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Furuncle - L02.92
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Furuncle
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Skin Infections
Your skin is your body's largest organ. It has many different functions, including covering and protecting your body. It helps keep germs out. But sometimes the germs can cause a skin infection. It often happens when the germs enter your body through a break, cut, or wound on your skin.
The full article covers:
- What are skin infections?
- What causes skin infections?
- Who is more likely to get a skin infection?
- What are the symptoms of skin infections?
- How are skin infections diagnosed?
- How are skin infections treated?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert L02.92 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About L02.92Overview
Is L02.92 (Cutaneous abscess, furuncle and carbuncle, unspecified) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report furuncle, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does L02.92 group to?
When furuncle, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 602, 603, with relative weights from 0.8709 to 1.4213 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of L02.92?
Under the General Equivalence Mappings, furuncle, unspecified converts to ICD-9-CM 680.9 (carbuncle NOS). 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.
