ICD-10-CM 2027
ICD-10 code for skin sore
From the official ICD-10-CM alphabetic index entry “Sore › skin”. Page updated September 29, 2026.
About coding skin sore
The ICD-10-CM code for skin sore is L98.9 (Disorder of the skin and subcutaneous tissue, unspecified).
Within L98, choose L98.9 (Disorder of the skin and subcutaneous tissue, unspecified) only when documentation doesn't support a more specific option: pyogenic granuloma (L98.0), Factitial dermatitis (L98.1), febrile neutrophilic dermatosis [Sweet] (L98.2), eosinophilic cellulitis [Wells] (L98.3), Non-pressure chronic ulcer of skin, not elsewhere classified (L98.4), Mucinosis of the skin (L98.5), other infiltrative disorders of the skin and subcutaneous tissue (L98.6), excessive and redundant skin and subcutaneous tissue (L98.7) and 2 more.
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 skin sore ICD-10 codes
What is the ICD-10 code for skin sore?
- L98.9 — Disorder of the skin and subcutaneous tissue, unspecified.
Is L98.9 billable?
- Yes. L98.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L98.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L98.9 as a principal diagnosis.
Is L98.9 a CC or MCC?
- No. L98.9 is neither a CC nor an MCC under MS-DRG v44.0.