← T78.4

Chapter 19 - Injury, poisoning and certain other consequences of external causes (S00-T88)»Other and unspecified effects of external causes (T66-T78)»Allergy, unspecified (T78.40)

T78.40

Allergy, unspecified

Related indications (MeSH) (1)

Hypersensitivity213 drugs (105 approved, 108 experimental)

Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.