L63
Non-billableAlopecia areata
Alopecia areata
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •lipomelanotic reticulosisI89.8
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •viral wartsB07
Child Codes (5)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(12)
UMLS
- AA - Alopecia areataC0002171
- Alopecia AreataC0002171
- Alopecia CircumscriptaC0002171
- Alopecia areataC0002171
- Alopecia areata (disorder)C0002171
- Alopecia areata, unspecifiedC0002171
- Alopecia circumscriptaC0002171
- Circumscribed alopeciaC0002171
- Patchy loss of hairC0002171
- alopecia areataC0002171
- areata alopeciaC0002171
- patchy hair lossC0002171
Frequently Asked Questions
What is the ICD-10 code for alopecia areata?
The ICD-10-CM code for alopecia areata is L63. The full clinical description is "Alopecia areata". L63 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code L63 mean?
ICD-10-CM code L63 represents “Alopecia areata”. It is classified under Chapter 12: Diseases of the Skin and Subcutaneous Tissue and is a non-billable header code. Use a more specific child code for billing purposes.
Is L63 a billable code?
No, L63 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 5 child codes under L63.
What chapter is L63 in?
L63 is in Chapter 12: Diseases of the Skin and Subcutaneous Tissue (codes L00-L99).
What codes cannot be used with L63?
L63 has Excludes1 notes indicating codes that cannot be used together with it, including: congenital malformations of integument (Q84.-).
What are the subcategories under L63?
L63 has 5 child codes, including: L63.0 (Alopecia (capitis) totalis), L63.1 (Alopecia universalis), L63.2 (Ophiasis), L63.8 (Other alopecia areata), and 1 more.
What are the UMLS CUIs for L63?
L63 is linked to 1 UMLS Concept Unique Identifier: C0002171. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does L63 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like alopecia areata affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of L63?
L63 maps to the ICD-11 code: ED70.2Z (Alopecia areata, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.