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L24 vs L98.1

L24 (Irritant contact dermatitis) compared with L98.1 (Factitial dermatitis), 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. L24 carries an Excludes2 note covering L98.1: “factitial dermatitis (L98.1)”

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

Side by side

L24Irritant contact dermatitisL98.1Factitial dermatitis
Billing statusNon-billable header

Report instead: L24.0, L24.1, L24.2, L24.3, L24.4

Billable
ClassificationL00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99)L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99)
DefinitionIrritant contact dermatitis is a non-billable ICD-10-CM category code (L24).Factitial dermatitis is a billable ICD-10-CM diagnosis code (L98.1).
Includes
Neurotic excoriation

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources