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Compare/L85 vs L91

L85 vs L91

L85 (Other epidermal thickening) compared with L91 (Hypertrophic disorders of skin), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. L85 carries an Excludes2 note covering L91: “hypertrophic disorders of the skin (L91.-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

L85Other epidermal thickeningL91Hypertrophic disorders of skin
Billing statusNon-billable header

Report instead: L85.0, L85.1, L85.2, L85.3, L85.8

Non-billable header

Report instead: L91.0, L91.8, L91.9

ClassificationL00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99)L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99)
DefinitionOther epidermal thickening is a non-billable ICD-10-CM category code (L85).Hypertrophic disorders of skin is a non-billable ICD-10-CM category code (L91).
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources