Stevens-Johnson syndrome (SJS):
skin detachment <10% of the body surface area, atypical target lesions and/or purpuric macules in wide dissemination.
skin detachment <10% of the body surface area, atypical target lesions and/or purpuric macules in wide dissemination.
skin detachment between 10% and 30% of the body surface area , atypical target lesions and/or macules in wide dissemination.
skin detachment >30% of the body surface area, atypical target lesions and/or macules.
skin detachment >10% of the body surface area without any targets or purpuric macules.