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 483 Pneumonia due to other specified organism View the most recent version of ICD-9-CM 483 483 is a non-specific code that cannot be used to specify a diagnosis