ICD-10-CM 2027
ICD-10 code for Onycholysis
From the official ICD-10-CM alphabetic index entry “Onycholysis”. Page updated September 29, 2026.
About coding Onycholysis
The ICD-10-CM code for Onycholysis is L60.1 (Onycholysis).
Within L60 (nail disorders), L60.1 is specifically for Onycholysis. Related codes cover Ingrowing nail (L60.0), Onychogryphosis (L60.2), nail dystrophy (L60.3), Beau's lines (L60.4), yellow nail syndrome (L60.5), other nail disorders (L60.8) and nail disorder, unspecified (L60.9).
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 Onycholysis ICD-10 codes
What is the ICD-10 code for Onycholysis?
- L60.1 — Onycholysis.
Is L60.1 billable?
- Yes. L60.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L60.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L60.1 as a principal diagnosis.
Is L60.1 a CC or MCC?
- No. L60.1 is neither a CC nor an MCC under MS-DRG v44.0.