ICD-10 Code L63.8 – Other alopecia areata (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L63.8 – Other alopecia areata
What it is
L63.8 is used for alopecia areata that does not fit a more specific subtype. It refers to patchy, non-scarring hair loss due to an autoimmune process.
Clinical signs
Typical findings include discrete round or oval areas of hair loss on the scalp or other hair-bearing skin. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents alopecia areata but does not specify a named variant such as totalis or universalis. It also fits cases described as “other” or otherwise not classifiable under a more specific alopecia areata code.
Do not use for
Do not use it for nonscarring hair loss from other causes, such as androgenetic alopecia or telogen effluvium. If the record identifies a different alopecia areata subtype, code that specific diagnosis instead.
Coding tip
Check the note carefully for a more specific alopecia areata subtype before assigning L63.8.