L63

Non-Billable

ChapterL00–L99

Rankcategory

Official Description

Alopecia areata

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 12: Diseases of the Skin and Subcutaneous Tissue (L00-L99).

CH12 Parent Instructions

Excludes2(Not included here)

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.-)

L60-L75 Parent Instructions

Excludes1(Not coded here)

congenital malformations of integument (Q84.-)

Clinical Hierarchy

CH12Diseases of the skin and subcutaneous tissue (L00-L99)

L60-L75Disorders of skin appendages (L60-L75)

L63Alopecia areata

L63.0Alopecia (capitis) totalis

L63.1Alopecia universalis

L63.2Ophiasis

L63.8Other alopecia areata

L63.9Alopecia areata, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to L63:

blockL60-L75

Disorders of skin appendages (L60-L75)

View context instructions

chapterCH12

Diseases of the skin and subcutaneous tissue (L00-L99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to L63. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

9 raw paths

Alopecia (hereditaria) (seborrheica)8 unique routes

areata→L63(5 variants)

ophiasis→L63

specified NEC→L63

totalis→L63

universalis→L63

circumscripta→L63

totalis (capitis)→L63

universalis (entire body)→L63

Ophiasis1 unique routes

Direct index entry→L63