All
 C20 Immunologic Diseases D007154 +
 C20.543 Hypersensitivity D006967 +
 C20.543.206 Drug Hypersensitivity D004342 +
 C20.543.418 Hypersensitivity, Delayed D006968 +
 C20.543.480 Hypersensitivity, Immediate D006969 +
 C20.543.520 Immune Complex Diseases D007105 +
 C20.543.928 Wissler's Syndrome D014924 
 C20.543.312 Environmental Illness D018876 +
 C20.543.600 Latex Hypersensitivity D020315