Table 4. Grading of radiation dermatitis^a by NCI CTCAE¹⁶ .

Grade
1	2	3	4
Faint erythema or dry desquamation	Moderate to brisk erythema; patchy moist desquamation, mostly confined to skin folds and creases; moderate edema	Moist desquamation in areas other than skin folds and creases; bleeding induced by minor trauma or abrasion	Life-threatening consequences; skin necrosis or ulceration of full thickness dermis; spontaneous bleeding from involved site; skin graft indicated

^aA finding of cutaneous inflammatory reaction occurring as a result of exposure to biologically effective levels of ionizing radiation.