L13.0 vs L22
L13.0 (Dermatitis herpetiformis) compared with L22 (Diaper 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. L22 carries an Excludes2 note covering L13.0: “dermatitis herpetiformis (L13.0)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| L13.0Dermatitis herpetiformis | L22Diaper dermatitis | |
|---|---|---|
| Billing status | Billable | 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 | Dermatitis herpetiformis is a billable ICD-10-CM diagnosis code (L13.0). | Diaper dermatitis is a billable ICD-10-CM diagnosis code (L22). |
| Includes | Duhring's disease Hydroa herpetiformis | Diaper erythema Diaper rash Psoriasiform diaper rash |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources