2026 ICD-10-CM Diagnosis Code L13Other bullous disorders

ICD-10-CM Codes›L00–L99›L10-L14›L13

ICD-10-CM L13
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L13 is a non-billable ICD-10-CM category code for other bullous disorders, so it cannot be submitted on claims. Use a more specific code from this category instead, such as L13.0, L13.1, L13.8, and L13.9.

Code Identity

ICD-10-CM Code
L13
Billable Status
No — Non-Billable Category
Code Describes
Other bullous disorders
Chapter
L10-L14
Bullous disorders

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL10-L14Bullous disorders
CategoryL13Other bullous disorders
This CodeL13Other bullous disorders

Specific Coding for Other bullous disordersOverview

Non-specific codes like L13 require more characters. Use one of these billable codes instead:

  • Use L13.0 for Dermatitis herpetiformis

  • Use L13.1 for Subcorneal pustular dermatitis

  • Use L13.8 for Other specified bullous disorders

  • Use L13.9 for Bullous disorder, unspecified

Patient EducationClinical

Skin Conditions

Your skin is your body's largest organ. It covers the entire outside of your body. There are many ways that your skin protects your body and helps keep you healthy. For example, it:

The full article covers:

  • What does your skin do?
  • What problems and conditions can affect your skin?
  • How can I keep my skin healthy?

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 L13Overview

Is L13 (Other bullous disorders) a billable code?

No. This is a category header that groups the codes for other bullous disorders, and headers cannot be submitted on claims. Claims for other bullous disorders need a more specific code from this category, such as L13.0, L13.1, and L13.8.