L73.9 – Follicular disorder, unspecified
ICD-10-CM 2027 diagnosis code · Disorders of skin appendages
ICD-10-CM code
L73.9
- Code
L73.9(claims format:L739)- Description
- Follicular disorder, unspecified
- 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
- L73
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 L73.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in L73
- L73.0 – Acne keloidBillable
- L73.1 – Pseudofolliculitis barbaeBillable
- L73.2 – Hidradenitis suppurativaBillable
- L73.8 – Other specified follicular disordersBillable
Frequently asked questions
What is ICD-10 code L73.9?
L73.9 is the ICD-10-CM code for follicular disorder, unspecified, in the block L60-L75 (Disorders of skin appendages).
Is L73.9 a billable code?
Yes. L73.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does L73.9 belong to?
It belongs to category L73 – Other follicular disorders.
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.