Table 2 Samples used for analysis of i) self-reported allergy and ii) ED presentation with allergic disorder

J30.1

Hay fever or allergic rhinitis due to pollen

J30.4

Allergic rhinitis, unspecified

J45.0

Allergic rhinitis with asthma or predominantly allergic asthma

J67^a

Allergic alveolitis and pneumonitis due to inhaled organic dust and particles of fungal, actinomycetic or other origin

K52.2^a

Allergic gastroenteritis and colitis

L20.0^a

Atopic dermatitis

L20.8^a

Atopic dermatitis

L20.9

Atopic dermatitis

L23.0

Allergic contact dermatitis due to metals

L23.9

Allergic contact dermatitis unspecified

L50.0

Allergic urticaria

L50.9

Urticaria, unspecified

R21

Rash and other nonspecific eruptions

T78.0^a

Anaphylactic shock due to adverse food reaction

T78.2

Anaphylactic shock, unspecified

T78.4

Allergy, NOS

T80.5^a

Anaphylactic shock due to serum

T88.1

Rash following immunization

T88.6^a

Anaphylactic shock due to medication properly administered

T88.7

Allergic reaction to medicine properly administered