T78.4
Allergy, unspecified
Coding guidance (WHO 2019)
Allergic reaction NOS Hypersensitivity NOS Idiosyncracy NOS Excl.: allergic reaction NOS to correct medicinal substance properly administered (T88.7) specified types of allergic reaction such as: allergic gastroenteritis and colitis (K52.2) dermatitis (L23-L25, L27.-) hay fever (J30.1)
Sibling codes
T78Adverse effects, not elsewhere classifiedT78.0Anaphylactic shock due to adverse food reactionT78.1Other adverse food reactions, not elsewhere classifiedT78.2Anaphylactic shock, unspecifiedT78.3Angioneurotic oedemaT78.8Other adverse effects, not elsewhere classifiedT78.9Adverse effect, unspecified