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Table 1 ICD-9-CM codes used to identify food allergy hospitalizations and office visits

From: Antibiotic prescription and food allergy in young children

Description ICD-9-CM Code Proportion of cases with ICD-9-CM codea (%)
Allergic rhinitis attributable to food 477.1 4.39
Allergic gastroenteritis and colitis 558.3 8.64
General food allergy according to specific type of food
 Peanuts V15.01 4.65
 Milk products V15.02 6.58
 Eggs V15.03 5.12
 Seafood V15.04 1.93
 Other foods V15.05 4.85
Contact dermatitis attributable to food in contact with skin 692.5 6.18
Dermatitis attributable to food taken internally 693.1 37.37
Allergic urticaria 708.0 33.24
Anaphylactic shock attributable to adverse food reaction, specifically for:
 Unspecified food 995.60 1.46
 Peanuts 995.61 1.93
 Crustaceans 995.62 0.4
 Fruits and vegetables 995.63 0.13
 Tree nuts and seeds 995.64 0.53
 Fish 995.65 0.4
 Food additives 995.66 0
 Milk products 995.67 0.53
 Eggs 995.68 0.66
 Other specified food 995.69 0.13
Other adverse food reactions, not elsewhere classified 995.7 3.32
  1. aPatients may have multiple food allergy diagnoses; therefore, these percentages total >100 %