ICD-10 Code L24.A0 – Irritant contact dermatitis due to friction or contact with body fluids, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L24.A0 – Irritant contact dermatitis due to friction or contact with body fluids, unspecified
What it is
This code identifies irritant contact dermatitis caused by repeated friction or exposure to body fluids, when the specific exposure site or source is not further specified. It describes a skin reaction from irritation, not an allergic process.
Clinical signs
Typical findings include redness, dryness, burning, itching, or chafed skin at the contact area. Clinical features vary; refer to documentation when the record does not clearly describe the irritant or distribution.
When to use this code
Use this code when the provider documents irritant contact dermatitis from friction or body fluids and does not specify a more precise site or cause. It is appropriate for skin irritation related to incontinence, saliva, perspiration, or rubbing when recorded as the cause. If the note gives a more specific diagnosis, code that instead.
Do not use for
Do not use this code for allergic contact dermatitis, eczema, or pressure injury. Check documentation if the rash is attributed to infection, medication, or a different dermatitis type.
Coding tip
Code the documented irritant and body site first when available; use L24.A0 only when the record remains unspecified.