2026 ICD-10-CM Diagnosis Code L85.1Acquired keratosis [keratoderma] palmaris et plantaris

ICD-10-CM Codes›L00–L99›L80-L99›L85

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

L85.1 is a billable ICD-10-CM diagnosis code for acquired keratosis [keratoderma] palmaris et plantaris. 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 and unspecified skin disorders.

Code Identity

ICD-10-CM Code
L85.1
Billable Status
Yes — Valid for Submission
Code Describes
Acquired keratosis [keratoderma] palmaris et plantaris
Short Description
Acquired keratosis [keratoderma] palmaris et plantaris
Same as the full description in the CMS dataset.
Parent Code
L85
Other epidermal thickening

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL80-L99Other disorders of the skin and subcutaneous tissue
CategoryL85Other epidermal thickening
This CodeL85.1Acquired keratosis [keratoderma] palmaris et plantaris

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired keratoderma
  • Acquired palmoplantar keratoderma
  • Acquired plantar keratoderma
  • Acral keratosis
  • Acrokeratosis paraneoplastica of Bazex
  • Aquagenic palmoplantar keratoderma
  • Chronic eczema of foot
  • Chronic hand eczema
  • Follicular atrophoderma
  • Follicular atrophoderma with palmoplantar hyperkeratosis
  • Hyperkeratotic eczema of palms
  • Hyperkeratotic eczema of palms and soles
  • Hyperkeratotic eczema of soles
  • Keratoderma blennorrhagicum
  • Keratoderma climactericum
  • Symmetrical keratoderma
  • Water-induced dermatosis

Tabular List NotesGuidance

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

Type 1 Excludes

  • inherited keratosis palmaris et plantaris Q82.8

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.

    • Hyperkeratosis
      • palmoplantaris climacterica
    • Keratoderma, keratodermia(congenital) (palmaris et plantaris) (symmetrical)
      • acquired
    • Keratoderma, keratodermia(congenital) (palmaris et plantaris) (symmetrical)
      • climactericum
    • Keratosis
      • palmaris et plantaris (inherited) (symmetrical)
        • acquired
    • Tylosis(acquired)
      • palmaris et plantaris (congenital) (inherited)
        • acquired

Clinical ClassificationClinical

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

CCSR SKN007
Other specified and unspecified skin disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Acquired Keratoderma

    focal or diffuse thickening of the skin not inherited as a primary genetic disorder. causes include inflammatory skin disorders, infectious disorders, lymphedema, and medications.

Patient EducationClinical

Sun Exposure

Ultraviolet (UV) rays are an invisible form of radiation. They can pass through your skin and damage your skin cells. Sunburns are a sign of skin damage. Suntans aren't healthy, either. They appear after the sun's rays have already killed some cells and damaged others.

Read the full article at MedlinePlus

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

Convert L85.1 to ICD-9-CMHistory

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

ICD-9-CM
701.1 Keratoderma, acquired
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 L85.1Overview

Is L85.1 (Other epidermal thickening) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report acquired keratosis [keratoderma] palmaris et plantaris on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does L85.1 group to?

When acquired keratosis [keratoderma] palmaris et plantaris 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 L85.1?

Under the General Equivalence Mappings, acquired keratosis [keratoderma] palmaris et plantaris converts to ICD-9-CM 701.1 (keratoderma, acquired). 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.