2027 ICD-10-CM Diagnosis Code L63Alopecia areata

ICD-10-CM Codes›L00–L99›L60-L75›L63

ICD-10-CM L63
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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
Short Description
Alopecia areata
Same as the full description in the CMS dataset.
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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L63: its own notes plus those printed at block L60-L75 and Chapter 12. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block L60-L75 Disorders of skin appendages applies to 85 codes
  • congenital malformations of integument (Q84.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 12 (L00-L99) Diseases of the skin and subcutaneous tissue applies to 1,001 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • lipomelanotic reticulosis (I89.8)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • viral warts (B07.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About L63Overview

What is the ICD-10 code for alopecia areata?

L63 is the ICD-10-CM category for alopecia areata, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.

Can L63 be reported with a code from Q84?

Not as a rule. The Excludes1 note at block L60-L75, which applies to L63, lists "congenital malformations of integument (Q84.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).