ICD-10 Code L26 – Exfoliative Dermatitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L26 – Exfoliative dermatitis
What it is
Exfoliative dermatitis is a severe skin condition marked by widespread redness and peeling of the skin. Use this code when documentation identifies generalized exfoliative dermatitis or erythroderma-type presentation.
Clinical signs
Typical findings include diffuse erythema, scaling, and shedding of the outer skin layer. Clinical features vary; refer to documentation for the extent of body surface involvement and any associated systemic findings.
When to use this code
Use L26 when the provider documents exfoliative dermatitis as the diagnosis, especially when the condition is generalized rather than localized. It may also fit when records describe extensive skin peeling with diffuse inflammation. Check documentation if the cause is specified or if another diagnosis better explains the rash.
Do not use for
Do not use this code for a simple localized rash, dry skin, or nonspecific dermatitis without exfoliation. If the chart names a different primary skin disorder, code that condition instead.
Coding tip
Confirm that the note clearly supports generalized exfoliative dermatitis before assigning L26.