2026 ICD-10-CM Diagnosis Code L57Skin changes due to chronic exposure to nonionizing radiation

ICD-10-CM Codes›L00–L99›L55-L59›L57

ICD-10-CM L57
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L57 is a non-billable ICD-10-CM category code for skin changes due to chronic exposure to nonionizing radiation, so it cannot be submitted on claims. Use a more specific code from this category instead, such as L57.0, L57.1, L57.2, and L57.3.

Code Identity

ICD-10-CM Code
L57
Billable Status
No — Non-Billable Category
Code Describes
Skin changes due to chronic exposure to nonionizing radiation
Chapter
L55-L59
Radiation-related disorders of the skin and subcutaneous tissue

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL55-L59Radiation-related disorders of the skin and subcutaneous tissue
CategoryL57Skin changes due to chronic exposure to nonionizing radiation
This CodeL57Skin changes due to chronic exposure to nonionizing radiation

Specific Coding for Skin changes due to chronic expsr to nonionizing radiationOverview

Non-specific codes like L57 require more characters. Use one of these billable codes instead:

  • Use L57.0 for Actinic keratosis

  • Use L57.1 for Actinic reticuloid

  • Use L57.2 for Cutis rhomboidalis nuchae

  • Use L57.3 for Poikiloderma of Civatte

  • Use L57.4 for Cutis laxa senilis

  • Use L57.5 for Actinic granuloma

  • Use L57.8 for Other skin changes due to chronic exposure to nonionizing radiation

  • Use L57.9 for Skin changes due to chronic exposure to nonionizing radiation, unspecified

Tabular List NotesGuidance

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

Use Additional Code

  • code to identify the source of the ultraviolet radiation W89 W90

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.

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 L57Overview

Is L57 a billable code?

No. This is a category header that groups the codes for skin changes due to chronic exposure to nonionizing radiation, and headers cannot be submitted on claims. Claims for skin changes due to chronic exposure to nonionizing radiation need a more specific code from this category, such as L57.0, L57.1, and L57.2.