ICD-10 Code L40.2 – Acrodermatitis continua (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L40.2 – Acrodermatitis continua
What it is
L40.2 identifies acrodermatitis continua, a localized pustular psoriasis affecting the fingertips or toes. It describes a chronic inflammatory skin condition with recurrent pustules and scaling.
Clinical signs
Typical findings include sterile pustules, erythema, scaling, and nail changes around the digits. Clinical features vary; refer to documentation.
When to use this code
Use L40.2 when the provider documents acrodermatitis continua or pustular psoriasis limited to the digits. Code it when the diagnosis is confirmed in the record, even if the note emphasizes pain, swelling, or chronic recurrence. Check documentation if the distribution is unclear.
Do not use for
Do not use this code for simple dermatitis, infectious pustules, or generalized psoriasis without digit involvement. If the chart does not clearly name acrodermatitis continua, check documentation.
Coding tip
Look for exact provider wording and the anatomic site; digit-limited pustular disease supports L40.2.