ICD-9-CM Volume 2 Index entries containing back-references to
493.0:
- Allergy, allergic (reaction) 995.3

grass (pollen) 477.0

asthma (see also Asthma) 493.0
hay fever 477.0
pollen (any) (hay fever) 477.0

asthma (see also Asthma) 493.0
ragweed (pollen) (Senecio jacobae) 477.0

asthma (see also Asthma) 493.0
hay fever 477.0
tree (any) (hay fever) (pollen) 477.0

asthma (see also Asthma) 493.0
- Asthma, asthmatic (bronchial) (catarrh) (spasmodic) 493.9

with
chronic obstructive pulmonary disease (COPD) 493.2

hay fever 493.0
rhinitis, allergic 493.0
allergic 493.9

stated cause (external allergen) 493.0
atopic 493.0
childhood 493.0
due to
detergent 507.8

inhalation of fumes 506.3

internal immunological process 493.0
exogenous (cosmetics) (dander or dust) (drugs) (dust) (feathers) (food) (hay) (platinum) (pollen) 493.0
extrinsic 493.0
hay 493.0
IgE 493.0
New Orleans (epidemic) 493.0
platinum 493.0
- Fever 780.60

hay (allergic) (with rhinitis) 477.9

with

asthma (bronchial) (see also Asthma) 493.0

due to

dander, animal (cat) (dog) 477.2


dust 477.8


fowl 477.8


hair, animal (cat) (dog) 477.2


pollen, any plant or tree 477.0


specified allergen other than pollen 477.8
- Hay
asthma (see also Asthma) 493.0
fever (allergic) (with rhinitis) 477.9

with asthma (bronchial) (see also Asthma) 493.0
allergic, due to grass, pollen, ragweed, or tree 477.0

conjunctivitis 372.05

due to
- IgE asthma 493.0
- Rhinitis (atrophic) (catarrhal) (chronic) (croupous) (fibrinous) (hyperplastic) (hypertrophic) (membranous) (purulent) (suppurative) (ulcerative) 472.0

with
hay fever (see also Fever, hay) 477.9


with asthma (bronchial) 493.0

sore throat - see Nasopharyngitis
allergic (nonseasonal) (seasonal) (see also Fever, hay) 477.9

with asthma (see also Asthma) 493.0
due to food 477.1