2026 ICD-10-CM Diagnosis Code L30.4Erythema intertrigo

ICD-10-CM Codes›L00–L99›L20-L30›L30

ICD-10-CM L30.4
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L30.4 is a billable ICD-10-CM diagnosis code for erythema intertrigo. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified inflammatory condition of skin.

Code Identity

ICD-10-CM Code
L30.4
Billable Status
Yes — Valid for Submission
Code Describes
Erythema intertrigo
Short Description
Erythema intertrigo
Same as the full description in the CMS dataset.
Parent Code
L30
Other and unspecified dermatitis

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL20-L30Dermatitis and eczema
CategoryL30Other and unspecified dermatitis
This CodeL30.4Erythema intertrigo

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Chafing of skin
  • Friction dermatitis of children
  • Genitocrural intertrigo
  • Intertrigo
  • Intertrigo of abdominal skin fold
  • Irritant contact dermatitis caused by friction
  • Staphylococcal intertrigo
  • Streptococcal intertrigo
  • Submammary intertrigo

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.

    • Chafing
    • Dermatitis(eczematous)
      • friction
    • Dermatitis(eczematous)
      • traumatic NEC
    • Eczema(acute) (chronic) (erythematous) (fissum) (rubrum) (squamous)
      • intertriginous NEC
    • Erythema, erythematous(infectional) (inflammation)
      • intertrigo
    • Intertrigo

Clinical ClassificationClinical

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

CCSR SKN002
Other specified inflammatory condition of skin
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Intertrigo

    a superficial dermatitis occurring on skin surfaces in contact with each other, such as the axillae, neck creases, intergluteal fold, between the toes, etc. obesity is a predisposing factor. the condition is caused by moisture and friction and is characterized by erythema, maceration, burning, and exudation.

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.

Convert L30.4 to ICD-9-CMHistory

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

ICD-9-CM
695.89 Erythematous cond 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 L30.4Overview

Is L30.4 (Other and unspecified dermatitis) a billable code?

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

What MS-DRG does L30.4 group to?

When erythema intertrigo 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.

What is the ICD-9 equivalent of L30.4?

Under the General Equivalence Mappings, erythema intertrigo converts to ICD-9-CM 695.89 (erythematous cond 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.