2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Pneumonia And Influenza 480-487 > 2006 ICD-9-CM Diagnosis 480 Viral pneumonia View the most recent version of ICD-9-CM 480 Pneumonia caused by a virus. 480 is a non-specific code that cannot be used to specify a diagnosis