2026 ICD-10-CM Diagnosis Code L85Other epidermal thickening

ICD-10-CM Codes›L00–L99›L80-L99›L85

ICD-10-CM L85
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L85 is a non-billable ICD-10-CM category code for other epidermal thickening, so it cannot be submitted on claims. Use a more specific code from this category instead, such as L85.0, L85.1, L85.2, and L85.3.

Code Identity

ICD-10-CM Code
L85
Billable Status
No — Non-Billable Category
Code Describes
Other epidermal thickening
Chapter
L80-L99
Other disorders of the skin and subcutaneous tissue

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL80-L99Other disorders of the skin and subcutaneous tissue
CategoryL85Other epidermal thickening
This CodeL85Other epidermal thickening

Specific Coding for Other epidermal thickeningOverview

Non-specific codes like L85 require more characters. Use one of these billable codes instead:

  • Use L85.0 for Acquired ichthyosis

  • Use L85.1 for Acquired keratosis [keratoderma] palmaris et plantaris

  • Use L85.2 for Keratosis punctata (palmaris et plantaris)

  • Use L85.3 for Xerosis cutis

  • Use L85.8 for Other specified epidermal thickening

  • Use L85.9 for Epidermal thickening, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 2 Excludes

  • hypertrophic disorders of the skin L91

Patient EducationClinical

Skin Conditions

Your skin is your body's largest organ. It covers the entire outside of your body. There are many ways that your skin protects your body and helps keep you healthy. For example, it:

The full article covers:

  • What does your skin do?
  • What problems and conditions can affect your skin?
  • How can I keep my skin healthy?

Read the full article at MedlinePlus

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

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 L85Overview

Is L85 (Other epidermal thickening) a billable code?

No. This is a category header that groups the codes for other epidermal thickening, and headers cannot be submitted on claims. Claims for other epidermal thickening need a more specific code from this category, such as L85.0, L85.1, and L85.2.