ICD-10 Code: R21 – Rash and other nonspecific skin eruption

ICD-10 code R21 corresponds to Rash and other nonspecific skin eruption. This code is classified under the chapter R20-R23: Symptoms and signs involving the skin and subcutaneous tissue, which is part of the R20-R23: Symptoms and signs involving the skin and subcutaneous tissue category.

The parent chapter is Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.