ICD-10-CM 2027
ICD-10 code for skin inflammation
From the official ICD-10-CM alphabetic index entry “Inflammation, inflamed, inflammatory (with exudation) › skin”. Page updated September 29, 2026.
About coding skin inflammation
The ICD-10-CM code for skin inflammation is L08.9 (Local infection of the skin and subcutaneous tissue, unspecified).
Within L08, choose L08.9 (Local infection of the skin and subcutaneous tissue, unspecified) only when documentation doesn't support a more specific option: pyoderma (L08.0), Erythrasma (L08.1) and other specified local infections of the skin and subcutaneous tissue (L08.8).
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 602 (Cellulitis with MCC, relative weight 1.4273), DRG 603 (Cellulitis without MCC, relative weight 0.8635) and DRG 795 (Normal Newborn, relative weight 0.2022), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), 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 inflammation ICD-10 codes
What is the ICD-10 code for skin inflammation?
- L08.9 — Local infection of the skin and subcutaneous tissue, unspecified.
Is L08.9 billable?
- Yes. L08.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L08.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L08.9 as a principal diagnosis.
Is L08.9 a CC or MCC?
- No. L08.9 is neither a CC nor an MCC under MS-DRG v44.0.