ICD-10 Code L24.B – Irritant contact dermatitis related to stoma or fistula (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L24.B – Irritant contact dermatitis related to stoma or fistula
What it is
This code identifies irritant contact dermatitis caused by exposure around a stoma or fistula. Use it when skin inflammation results from moisture, effluent, adhesive residue, or other local irritants near the opening.
Clinical signs
Typical findings include redness, burning, itching, scaling, or skin breakdown around the stoma or fistula site. Clinical features vary; refer to documentation for the exact appearance and severity.
When to use this code
Use L24.B when the provider documents irritant dermatitis specifically linked to a stoma or fistula. It is appropriate when the skin reaction is due to local irritation rather than infection, allergy, or another dermatitis type. Check documentation if the cause is unclear.
Do not use for
Do not use this code for allergic contact dermatitis, pressure injury, or infection around the site. If the record does not clearly link the dermatitis to a stoma or fistula, check documentation.
Coding tip
Code the dermatitis only when the note states the stoma or fistula as the irritant source.