ICD-10 Code L49.7 – Exfoliation due to erythematous condition involving 70-79 percent of body surface (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L49.7 – Exfoliation due to erythematous condition involving 70-79 percent of body surface
What it is
This code identifies exfoliation, or skin peeling, caused by an erythematous condition affecting 70% to 79% of the body surface. Use it when the documentation clearly links the peeling to a widespread red skin disorder.
Clinical signs
Typical findings include diffuse erythema with visible scaling or shedding of the skin over most of the body. Clinical features vary; refer to documentation for the extent of body surface involvement and the underlying erythematous condition.
When to use this code
Use this code when the record documents exfoliation due to an erythematous condition and specifies that 70% to 79% of body surface is involved. You should code from the provider’s stated assessment, not estimate the percentage yourself. Check documentation if the cause or extent is unclear.
Do not use for
Do not use this code for exfoliation without a documented erythematous cause or when body surface involvement falls outside the 70% to 79% range. If the record only says “rash” or “desquamation,” check documentation.
Coding tip
Confirm both the causative erythematous condition and the documented body-surface percentage before assigning L49.7.