ICD-10 Code L24.A – Irritant contact dermatitis due to friction or contact with body fluids (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L24.A – Irritant contact dermatitis due to friction or contact with body fluids
What it is
This code identifies irritant contact dermatitis caused by repeated friction or skin exposure to body fluids. It reflects a non-allergic inflammatory skin reaction from moisture, rubbing, or direct contact.
Clinical signs
Typical findings include red, irritated, inflamed skin with burning, stinging, or soreness in the exposed area. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly links the dermatitis to friction or to body fluids such as urine, stool, saliva, or wound drainage. It is appropriate when the provider documents irritant contact dermatitis rather than a pressure injury, infection, or allergic rash. Check documentation if the cause is not explicit.
Do not use for
Do not use this code for allergic contact dermatitis, pressure ulcers, or nonspecific skin irritation without a documented irritant cause. Check documentation when the diagnosis is uncertain.
Coding tip
Look for the exact irritant source in the note before assigning L24.A.