hypersensitivity reaction disease allergic hypersensitivity disease An immune system disease that is an exaggerated immune response to allergens, such as insect venom, dust mites, pollen, pet dander, drugs or some foods. DOID:1205 ICD10CM:T78.40 MESH:D006967 NCI:C3114 SNOMEDCT_US_2016_03_01:106190000 SNOMEDCT_US_2016_03_01:127072000 SNOMEDCT_US_2016_03_01:157754004 SNOMEDCT_US_2016_03_01:157758001 SNOMEDCT_US_2016_03_01:212998004 SNOMEDCT_US_2016_03_01:212999007 SNOMEDCT_US_2016_03_01:21957007 SNOMEDCT_US_2016_03_01:257550005 SNOMEDCT_US_2016_03_01:269284003 SNOMEDCT_US_2016_03_01:269432007 SNOMEDCT_US_2016_03_01:274211000 SNOMEDCT_US_2016_03_01:282092005 SNOMEDCT_US_2016_03_01:418168000 SNOMEDCT_US_2016_03_01:418634005 SNOMEDCT_US_2016_03_01:418925002 SNOMEDCT_US_2016_03_01:421668005 SNOMEDCT_US_2016_03_01:421961002 SNOMEDCT_US_2016_03_01:91232002 UMLS_CUI:C0020517 allergy disease_ontology hypersensitivity hypersensitivity reaction type I disease allergic disease