2026 ICD-10-CM Diagnosis Code L24.A1Irritant contact dermatitis due to saliva

ICD-10-CM Codes›L00–L99›L20-L30›L24

ICD-10-CM L24.A1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L24.A1 is a billable ICD-10-CM diagnosis code for irritant contact dermatitis due to saliva. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 606 through 607. Coders also document this condition as contact dermatitis caused by saliva. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Contact dermatitis.

Code Identity

ICD-10-CM Code
L24.A1
Billable Status
Yes — Valid for Submission
Code Describes
Irritant contact dermatitis due to saliva
Short Description
Irritant contact dermatitis due to saliva
Same as the full description in the CMS dataset.
Parent Code
L24.A
Irritant contact dermatitis due to friction or contact with body fluids

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL20-L30Dermatitis and eczema
CategoryL24Irritant contact dermatitis
This CodeL24.A1Irritant contact dermatitis due to saliva

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Contact dermatitis caused by saliva
  • Irritant contact dermatitis caused by body fluid
  • Irritant contact dermatitis caused by saliva
  • Irritant contact dermatitis of face

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.

    • Dermatitis(eczematous)
      • contact (occupational)
        • irritant
          • due to
            • body fluids
              • saliva

Clinical ClassificationClinical

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

CCSR SKN005
Contact dermatitis
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Eczema

Eczema is a term for several different types of skin swelling. Eczema is also called dermatitis. Most types cause dry, itchy skin and rashes on the face, inside the elbows and behind the knees, and on the hands and feet. Scratching the skin can cause it to turn red, and to swell and itch even more.

Read the full article at MedlinePlus

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

Code History & ChangesHistory

Replacement L24.A1 replaces the following previously assigned code(s):

  • L24.89 - Irritant contact dermatitis due to other agents
FY 2022AddedAdded to the ICD-10-CM code setEffective October 1, 2021.
FY 2023–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About L24.A1Overview

Is L24.A1 a billable code?

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

What MS-DRG does L24.A1 group to?

When irritant contact dermatitis due to saliva is the principal diagnosis on an inpatient stay, it groups to MS-DRG 606, 607, with relative weights from 0.9064 to 1.5132 depending on complications. Higher weights mean higher Medicare reimbursement.

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.