ICD-10-CM L63 is the diagnosis code for Alopecia areata. This code falls under the section "Disorders of skin appendages" within Chapter 12 — Diseases of the skin and subcutaneous tissue (L00-L99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where L63 sits in the ICD-10-CM classification helps ensure proper coding:
No, L63 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
L63 is the ICD-10-CM diagnosis code for "Alopecia areata". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
L63 is located in Section L60-L75 — "Disorders of skin appendages" within Chapter 12 of the ICD-10-CM Tabular List.
L63 has 5 sub-code(s) that provide more specific detail: L63.0, L63.1, L63.2, L63.8, L63.9.
Use L63 when the patients documented diagnosis matches "Alopecia areata" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Alopecia areata is L63.
No, L63 is non-billable. Use a more specific sub-code for primary diagnosis billing.
L63 is in Chapter 12 of the ICD-10-CM Tabular List.
Yes, L63 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.