2026 ICD-10-CM Diagnosis Code L49Exfoliation due to erythematous conditions according to extent of body surface involved

ICD-10-CM Codes›L00–L99›L49-L54›L49

ICD-10-CM L49
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L49 is a non-billable ICD-10-CM category code for exfoliation due to erythematous conditions according to extent of body surface involved, so it cannot be submitted on claims. Use a more specific code from this category instead, such as L49.0, L49.1, L49.2, and L49.3.

Code Identity

ICD-10-CM Code
L49
Billable Status
No — Non-Billable Category
Code Describes
Exfoliation due to erythematous conditions according to extent of body surface involved
Chapter
L49-L54
Urticaria and erythema

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL49-L54Urticaria and erythema
CategoryL49Exfoliation due to erythematous conditions according to extent of body surface involved
This CodeL49Exfoliation due to erythematous conditions according to extent of body surface involved

Specific Coding for Exfoliatn due to erythemat cond accord extent body involvOverview

Non-specific codes like L49 require more characters. Use one of these billable codes instead:

  • Use L49.0 for Exfoliation due to erythematous condition involving less than 10 percent of body surface

  • Use L49.1 for Exfoliation due to erythematous condition involving 10-19 percent of body surface

  • Use L49.2 for Exfoliation due to erythematous condition involving 20-29 percent of body surface

  • Use L49.3 for Exfoliation due to erythematous condition involving 30-39 percent of body surface

  • Use L49.4 for Exfoliation due to erythematous condition involving 40-49 percent of body surface

  • Use L49.5 for Exfoliation due to erythematous condition involving 50-59 percent of body surface

  • Use L49.6 for Exfoliation due to erythematous condition involving 60-69 percent of body surface

  • Use L49.7 for Exfoliation due to erythematous condition involving 70-79 percent of body surface

  • Use L49.8 for Exfoliation due to erythematous condition involving 80-89 percent of body surface

  • Use L49.9 for Exfoliation due to erythematous condition involving 90 or more percent of body surface

Tabular List NotesGuidance

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

Code First

  • erythematous condition causing exfoliation, such as:
  • Ritter's disease L00
  • Staphylococcal scalded skin syndrome L00
  • Stevens-Johnson syndrome L51.1
  • Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndrome L51.3
  • Toxic epidermal necrolysis L51.2

Patient EducationClinical

Eczema

Eczema is a term for several different types of skin swelling. Eczema is also called dermatitis. Most types cause dry, itchy skin and rashes on the face, inside the elbows and behind the knees, and on the hands and feet. Scratching the skin can cause it to turn red, and to swell and itch even more.

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 L49Overview

Is L49 a billable code?

No. This is a category header that groups the codes for exfoliation due to erythematous conditions according to extent of body surface involved, and headers cannot be submitted on claims. Claims for exfoliation due to erythematous conditions according to extent of body surface involved need a more specific code from this category, such as L49.0, L49.1, and L49.2.