2020 ICD-10-CM Diagnosis Code L63

Alopecia areata

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • L63 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM L63 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of L63 - other international versions of ICD-10 L63 may differ.
The following code(s) above L63 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to L63:
  • L00-L99
    2020 ICD-10-CM Range L00-L99

    Diseases of the skin and subcutaneous tissue

    Type 2 Excludes
    • 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.-)
    Diseases of the skin and subcutaneous tissue
  • L60-L75
    2020 ICD-10-CM Range L60-L75

    Disorders of skin appendages

    Type 1 Excludes
    • congenital malformations of integument (Q84.-)
    Disorders of skin appendages
Clinical Information
  • Loss of scalp and body hair involving microscopically inflammatory patchy areas.
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To L63
L60 Nail disorders
L60.0 Ingrowing nail
L60.1 Onycholysis
L60.2 Onychogryphosis
L60.3 Nail dystrophy
L60.4 Beau's lines
L60.5 Yellow nail syndrome
L60.8 Other nail disorders
L60.9 Nail disorder, unspecified
L62 Nail disorders in diseases classified elsewhere
L63 Alopecia areata
L63.0 Alopecia (capitis) totalis
L63.1 Alopecia universalis
L63.2 Ophiasis
L63.8 Other alopecia areata
L63.9 Alopecia areata, unspecified
L64 Androgenic alopecia
L64.0 Drug-induced androgenic alopecia
L64.8 Other androgenic alopecia
L64.9 Androgenic alopecia, unspecified
L65 Other nonscarring hair loss

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.