ICD-9-CM Vol. 1 Diagnostic Codes →
8. DISEASES OF THE RESPIRATORY SYSTEM (460-519) →
section notes
OTHER DISEASES OF THE UPPER RESPIRATORY TRACT (470-478) →
section notes
477 Allergic rhinitis →
section notes
477.0   Rhinitis due to pollen
477.1   Allergic rhinitis-food
477.2   Allerg rhinitis-cat/dog
477.8   Allergic rhinitis NEC
477.9   Allergic rhinitis NOS
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