ICD-10 Code L49 – Exfoliation due to erythematous conditions according to extent of body surface involved (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L49 – Exfoliation due to erythematous conditions according to extent of body surface involved
What it is
L49 identifies exfoliation, or skin peeling, that occurs with erythematous conditions and is classified by how much body surface is involved. Use it when the record documents peeling linked to a widespread redness disorder.
Clinical signs
Typical findings include diffuse erythema with visible desquamation or scaling. Clinical features vary; refer to documentation for the extent of body surface involvement and the underlying erythematous condition.
When to use this code
Use L49 when the provider documents exfoliation tied to an erythematous condition and the note describes the affected body surface extent. It is appropriate when the diagnosis is based on clinical assessment and the chart supports the skin peeling pattern. Check documentation if the cause is unclear.
Do not use for
Do not use this code for isolated rash, simple dermatitis, or nonspecific scaling without documented exfoliation from an erythematous condition. If the condition is better described elsewhere, code the documented diagnosis instead.
Coding tip
Before assigning L49, confirm the record states both exfoliation and the erythematous condition, plus the extent of body surface involved.