ICD-10 Code L24.89 – Irritant contact dermatitis due to other agents (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L24.89 – Irritant contact dermatitis due to other agents
What it is
This code identifies irritant contact dermatitis caused by a non-allergic external substance not named in a more specific code. It reflects skin inflammation from direct irritation, not an immune allergy.
Clinical signs
Typical findings include localized redness, dryness, burning, stinging, scaling, or cracking at the exposed site. Clinical features vary; refer to documentation.
When to use this code
Use L24.89 when the record states irritant contact dermatitis and the trigger is another specified or unspecified irritant that does not fit a more specific L24 category. You should also use it when the clinician documents a clear irritant exposure with dermatitis, but the agent is not named elsewhere in the code set.
Do not use for
Do not use this code for allergic contact dermatitis, which is coded separately. Also avoid it when documentation identifies a more specific irritant contact dermatitis code or when the diagnosis is uncertain; check documentation.
Coding tip
Capture the exact irritant if documented, because a more specific code may be available.