L63.1 – Alopecia universalis
ICD-10-CM 2027 diagnosis code · Disorders of skin appendages
ICD-10-CM code
L63.1
- Code
L63.1(claims format:L631)- Description
- Alopecia universalis
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 12. Diseases of the skin and subcutaneous tissue (L00-L99)
- Block
- L60-L75 Disorders of skin appendages
- Parent codes
- L63
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block L60-L75
Excludes1 (not coded here):
- congenital malformations of integument (Q84.-)
Index terms for L63.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in L63
- L63.0 – Alopecia (capitis) totalisBillable
- L63.2 – OphiasisBillable
- L63.8 – Other alopecia areataBillable
- L63.9 – Alopecia areata, unspecifiedBillable
Frequently asked questions
What is ICD-10 code L63.1?
L63.1 is the ICD-10-CM code for alopecia universalis, in the block L60-L75 (Disorders of skin appendages).
Is L63.1 a billable code?
Yes. L63.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does L63.1 belong to?
It belongs to category L63 – Alopecia areata.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.