ICD-10 Code L49.5 – Exfoliation due to erythematous condition involving 50-59 percent of body surface (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L49.5 – Exfoliation due to erythematous condition involving 50-59 percent of body surface
What it is
This code identifies skin exfoliation, or widespread peeling, caused by an erythematous condition affecting 50-59% of the body surface. Use it when documentation specifies both the cause and the extent.
Clinical signs
Typical findings include diffuse redness with visible shedding or peeling of the skin over a large body area. Clinical features vary; refer to documentation for the underlying erythematous disorder and measured body surface involvement.
When to use this code
Use L49.5 when the record clearly states exfoliation from an erythematous condition and estimates involvement at 50-59% of body surface. You should also confirm the condition is not better coded to a more specific diagnosis. If the percentage is not documented, check documentation before assigning this code.
Do not use for
Do not use this code for peeling skin without an erythematous cause or when body surface involvement is outside the 50-59% range. Do not guess the percentage; check documentation.
Coding tip
Capture the documented body surface percentage exactly, because this code is range-specific and depends on precise clinical wording.