ICD-10-CM 2027
ICD-10 code for Lichenification
From the official ICD-10-CM alphabetic index entry “Lichenification”. Page updated September 29, 2026.
About coding Lichenification
The ICD-10-CM code for Lichenification is L28.0 (Lichen simplex chronicus).
Within L28 (lichen simplex chronicus and prurigo), L28.0 is specifically for lichen simplex chronicus. Related codes cover prurigo nodularis (L28.1) and other prurigo (L28.2).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Lichenification ICD-10 codes
What is the ICD-10 code for Lichenification?
- L28.0 — Lichen simplex chronicus.
Is L28.0 billable?
- Yes. L28.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L28.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L28.0 as a principal diagnosis.
Is L28.0 a CC or MCC?
- No. L28.0 is neither a CC nor an MCC under MS-DRG v44.0.