2026 ICD-10-CM Diagnosis Code H01.135Eczematous dermatitis of left lower eyelid

ICD-10-CM Codes›H00–H59›H00-H05›H01

ICD-10-CM H01.135
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H01.135 is a billable ICD-10-CM diagnosis code for eczematous dermatitis of left lower eyelid. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. Coders also document this condition as eczematous dermatitis of left eyelid. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Allergic reactions, Cornea and external disease, and Oculofacial plastics and orbital conditions.

Code Identity

ICD-10-CM Code
H01.135
Billable Status
Yes — Valid for Submission
Code Describes
Eczematous dermatitis of left lower eyelid
Short Description
Eczematous dermatitis of left lower eyelid
Same as the full description in the CMS dataset.
Parent Code
H01.13
Eczematous dermatitis of eyelid

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH00-H05Disorders of eyelid, lacrimal system and orbit
CategoryH01Other inflammation of eyelid
This CodeH01.135Eczematous dermatitis of left lower eyelid

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Eczematous dermatitis of left eyelid
  • Eczematous dermatitis of left lower eyelid
  • Eczematous dermatitis of left upper and lower eyelids
  • Eczematous dermatitis of lower eyelid
  • Eczematous dermatitis of upper eyelid

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)
      • eyelid
        • eczematous
          • left
            • lower

Clinical ClassificationClinical

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

CCSR INJ031
Allergic reactions
Default principal diagnosis: inpatient No · outpatient No
CCSR EYE001
Cornea and external disease
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR EYE008
Oculofacial plastics and orbital conditions
Default principal diagnosis: inpatient No · outpatient No

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 H01.135 to ICD-9-CMHistory

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

ICD-9-CM
373.31 Eczem dermatitis eyelid
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 H01.135Overview

Is H01.135 (Eczematous dermatitis of eyelid) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report eczematous dermatitis of left lower eyelid on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does H01.135 group to?

When eczematous dermatitis of left lower eyelid is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H01.135?

Under the General Equivalence Mappings, eczematous dermatitis of left lower eyelid converts to ICD-9-CM 373.31 (eczem dermatitis eyelid). 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.