Grade 4 Neonatal Rash, AE

**Semantic type:** Finding

**Definition:** An adverse event in a newborn characterized by extensive or generalized bullous lesions or ulceration of mucous membranes involving two or more distinct mucosal sites or Stevens-Johnson syndrome or toxic epidermal necrosis.

**Synonyms:** - Grade 4 Neonatal Rash, Adverse Event - Grade 4 Rash Neonatal