ICD-10 Code L24.B3 – Irritant contact dermatitis related to fecal or urinary stoma or fistula (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L24.B3 – Irritant contact dermatitis related to fecal or urinary stoma or fistula
What it is
This code identifies irritant contact dermatitis caused by exposure to stool or urine around a fecal or urinary stoma or fistula. Use it when the skin reaction is due to direct irritant contact, not allergy.
Clinical signs
Typical findings include redness, burning, soreness, and inflamed peristomal skin. Clinical features vary; refer to documentation for whether the dermatitis is localized to the stoma or fistula site.
When to use this code
Use this code when the record documents irritant dermatitis from leakage, moisture, or contact with fecal or urinary output around a stoma or fistula. It also fits when the clinician specifically links the skin breakdown to that irritant exposure. Check documentation if the cause is unclear.
Do not use for
Do not use this code for allergic contact dermatitis or for skin irritation unrelated to a stoma or fistula. If the note does not specify an irritant cause, check documentation before assigning L24.B3.
Coding tip
Code the dermatitis only when the provider documents the irritant source and its relationship to the stoma or fistula.