L23 vs L98.1
L23 (Allergic 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. L23 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
| L23Allergic contact dermatitis | L98.1Factitial dermatitis | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99) | L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99) |
| Definition | Allergic contact dermatitis is a non-billable ICD-10-CM category code (L23). | 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