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ICD-10 Code L85.1: Acquired keratosis [keratoderma] palmaris et plantaris

L85.1 is a billable ICD-10 diagnosis code used to classify Acquired keratosis [keratoderma] palmaris et plantaris in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the skin and subcutaneous tissue (L00-L99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the skin and subcutaneous tissue (L00-L99).

When is it used?

  • May be used when a clinician documents acquired keratosis [keratoderma] palmaris et plantaris in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
12Diseases of the skin and subcutaneous tissue (L00-L99)
block
L80-L99Other disorders of the skin and subcutaneous tissue
category
L85Other epidermal thickening
currentL85

Official coding notes

Excludes1 (do not code together)
  • inherited keratosis palmaris et plantaris (Q82.8)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Dermatologist

Coverage-related procedures and services

CPT 11305high
SHAVING OF EPIDERMAL OR DERMAL LESION, SINGLE LESION, SCALP, NECK, HANDS, FEET, GENITALIA; LESION DIAMETER 0.5 CM OR LESS
Source: CMS coverage guidance
CPT 11306high
SHAVING OF EPIDERMAL OR DERMAL LESION, SINGLE LESION, SCALP, NECK, HANDS, FEET, GENITALIA; LESION DIAMETER 0.6 TO 1.0 CM
Source: CMS coverage guidance
CPT 11307high
SHAVING OF EPIDERMAL OR DERMAL LESION, SINGLE LESION, SCALP, NECK, HANDS, FEET, GENITALIA; LESION DIAMETER 1.1 TO 2.0 CM
Source: CMS coverage guidance
CPT 11308high
SHAVING OF EPIDERMAL OR DERMAL LESION, SINGLE LESION, SCALP, NECK, HANDS, FEET, GENITALIA; LESION DIAMETER OVER 2.0 CM
Source: CMS coverage guidance
CPT 17111high
DESTRUCTION (EG, LASER SURGERY, ELECTROSURGERY, CRYOSURGERY, CHEMOSURGERY, SURGICAL CURETTEMENT), OF BENIGN LESIONS OTHER THAN SKIN TAGS OR CUTANEOUS VASCULAR PROLIFERATIVE LESIONS; 15 OR MORE LESIONS
Source: CMS coverage guidance
CPT 17110high
DESTRUCTION (EG, LASER SURGERY, ELECTROSURGERY, CRYOSURGERY, CHEMOSURGERY, SURGICAL CURETTEMENT), OF BENIGN LESIONS OTHER THAN SKIN TAGS OR CUTANEOUS VASCULAR PROLIFERATIVE LESIONS; UP TO 14 LESIONS
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
L85.1

Common synonyms

Acquired keratosis [keratoderma] palmaris et plantaris

Frequently asked questions

Code details

CodeL85.1
SystemICD10
Display nameAcquired keratosis [keratoderma] palmaris et plantaris
ChapterDiseases of the skin and subcutaneous tissue (L00-L99)
BlockOther disorders of the skin and subcutaneous tissue

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
HyperkeratosisKeratoderma, keratodermia(congenital) (palmaris et plantaris) (symmetrical)Keratoderma, keratodermia(congenital) (palmaris et plantaris) (symmetrical)KeratosisTylosis(acquired)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code L85.1 for Acquired keratosis [keratoderma] palmaris et plantaris | HealthAssure