L24.A0 vs L24.B
L24.A0 (Irritant contact dermatitis due to friction or contact with body fluids, unspecified) compared with L24.B (Irritant contact dermatitis related to stoma or fistula), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. L24.A0 carries an Excludes1 note covering L24.B: “irritant contact dermatitis related to stoma or fistula (L24.B-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| L24.A0Irritant contact dermatitis due to friction or contact with body fluids, unspecified | L24.BIrritant contact dermatitis related to stoma or fistula | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99) | L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99) |
| Definition | Irritant contact dermatitis due to friction or contact with body fluids, unspecified is a billable ICD-10-CM diagnosis code (L24.A0). | Irritant contact dermatitis related to stoma or fistula is a non-billable ICD-10-CM category code (L24.B). |
| Use additional code | — | code to identify any artificial opening status (Z93.-), if applicable, for contact dermatitis related to stoma secretions |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources