L52 – Erythema nodosum
ICD-10-CM 2027 diagnosis code · Urticaria and erythema
ICD-10-CM code
L52
- Code
L52(claims format:L52)- Description
- Erythema nodosum
- 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
- L49-L54 Urticaria and erythema
Notes for L52
Excludes1 (not coded here):
- tuberculous erythema nodosum (A18.4)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block L49-L54
Index terms for L52
Entries in the ICD-10-CM alphabetic index that lead to this code:
Frequently asked questions
What is ICD-10 code L52?
L52 is the ICD-10-CM code for erythema nodosum, in the block L49-L54 (Urticaria and erythema).
Is L52 a billable code?
Yes. L52 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
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.