2026 ICD-10-CM Diagnosis Code L63Alopecia areata

ICD-10-CM Codes›L00–L99›L60-L75›L63

ICD-10-CM L63
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L63 is a non-billable ICD-10-CM category code for alopecia areata, so it cannot be submitted on claims. Use a more specific code from this category instead, such as L63.0, L63.1, L63.2, and L63.8.

Code Identity

ICD-10-CM Code
L63
Billable Status
No — Non-Billable Category
Code Describes
Alopecia areata
Chapter
L60-L75
Disorders of skin appendages

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL60-L75Disorders of skin appendages
CategoryL63Alopecia areata
This CodeL63Alopecia areata

Specific Coding for Alopecia areataOverview

Non-specific codes like L63 require more characters. Use one of these billable codes instead:

  • Use L63.0 for Alopecia (capitis) totalis

  • Use L63.1 for Alopecia universalis

  • Use L63.2 for Ophiasis

  • Use L63.8 for Other alopecia areata

  • Use L63.9 for Alopecia areata, unspecified

Clinical InformationClinical

  • Alopecia Areata

    loss of scalp and body hair involving microscopically inflammatory patchy areas.

Patient EducationClinical

Hair Loss

You lose up to 100 hairs from your scalp every day. That's normal, and in most people, those hairs grow back. But many men -- and some women -- lose hair as they grow older. You can also lose your hair if you have certain diseases, such as thyroid problems, diabetes, or lupus.

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 L63Overview

Is L63 (Alopecia areata) a billable code?

No. This is a category header that groups the codes for alopecia areata, and headers cannot be submitted on claims. Claims for alopecia areata need a more specific code from this category, such as L63.0, L63.1, and L63.2.