ICD-10 Code L49.8 – Exfoliation due to erythematous condition involving 80-89 percent of body surface (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L49.8 – Exfoliation due to erythematous condition involving 80-89 percent of body surface
What it is
This code identifies widespread exfoliation, or peeling of the skin, caused by an erythematous condition. Use it when documentation specifies involvement of 80-89 percent of body surface.
Clinical signs
Typical findings include diffuse redness with skin peeling or shedding over most of the body. Clinical features vary; refer to documentation for the stated extent of body surface involvement.
When to use this code
Use L49.8 when the provider documents exfoliation linked to an erythematous condition and clearly states 80-89 percent body surface involvement. It applies when the record supports that extent and no more specific diagnosis is recorded. Check documentation if the percentage is uncertain.
Do not use for
Do not use this code for localized peeling, unspecified rash, or exfoliation without documented body surface percentage. Do not assign it if the chart describes a different cause or a more specific skin disorder.
Coding tip
Verify the exact percentage of body surface involvement before coding, because this code is severity-specific.