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ICD10BillableValid for clinical use

ICD-10 Code L28.0: Lichen simplex chronicus

L28.0 is a billable ICD-10 diagnosis code used to classify Lichen simplex chronicus 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 lichen simplex chronicus 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
L20-L30Dermatitis and eczema
category
L28Lichen simplex chronicus and prurigo
currentL28

Official coding notes

Inclusion terms
  • Circumscribed neurodermatitis
  • Lichen NOS

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 11420high
EXCISION, BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), SCALP, NECK, HANDS, FEET, GENITALIA; EXCISED DIAMETER 0.5 CM OR LESS
Source: CMS coverage guidance
CPT 11421high
EXCISION, BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), SCALP, NECK, HANDS, FEET, GENITALIA; EXCISED DIAMETER 0.6 TO 1.0 CM
Source: CMS coverage guidance
CPT 11422high
EXCISION, BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), SCALP, NECK, HANDS, FEET, GENITALIA; EXCISED DIAMETER 1.1 TO 2.0 CM
Source: CMS coverage guidance
CPT 11423high
EXCISION, BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), SCALP, NECK, HANDS, FEET, GENITALIA; EXCISED DIAMETER 2.1 TO 3.0 CM
Source: CMS coverage guidance
CPT 11424high
EXCISION, BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), SCALP, NECK, HANDS, FEET, GENITALIA; EXCISED DIAMETER 3.1 TO 4.0 CM
Source: CMS coverage guidance
CPT 11426high
EXCISION, BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), SCALP, NECK, HANDS, FEET, GENITALIA; EXCISED DIAMETER OVER 4.0 CM
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
L28.0

Common synonyms

Lichen simplex chronicus

Frequently asked questions

Code details

CodeL28.0
SystemICD10
Display nameLichen simplex chronicus
ChapterDiseases of the skin and subcutaneous tissue (L00-L99)
BlockDermatitis and eczema

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Dermatitis(eczematous)Eczema(acute) (chronic) (erythematous) (fissum) (rubrum) (squamous)Eczema(acute) (chronic) (erythematous) (fissum) (rubrum) (squamous)EruptionLichenLichenLichenificationNeurodermatitis(circumscribed) (circumscripta) (local)Vidal's disease

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 L28.0 for Lichen simplex chronicus | HealthAssure