2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Acute Respiratory Infections 460-466 > ICD-9-CM Diagnosis 460 Acute nasopharyngitis (common cold) Inflammation of the nasopharynx. A catarrhal disorder of the upper respiratory tract, which may be viral, a mixed infection, or an allergic reaction. It is marked by acute coryza, slight rise in temperature, chilly sensations, and general indisposition. 460 is a specific code that can be used to specify a diagnosis 460 contains 24 index entries