L63Header code — not billable

Alopecia areata

Chapter
12. Diseases of the skin and subcutaneous tissue
Category
L63
Effective date
October 1, 2026

Related codes in category L63

L63.0Alopecia (capitis) totalisYesL63.1Alopecia universalisYesL63.2OphiasisYesL63.8Other alopecia areataYesL63.9Alopecia areata, unspecifiedYes

Frequently asked questions

What is ICD-10 code L63?

L63 is an ICD-10-CM diagnosis code for Alopecia areata.

Is L63 a billable code?

No. L63 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is L63 in?

L63 falls under Chapter 12: Diseases of the skin and subcutaneous tissue.

When did L63 become effective?

L63 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to L63?

L63 belongs to category L63, which includes 5 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.