2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Acute Respiratory Infections 460-466 > 2006 ICD-9-CM Diagnosis 461 Acute sinusitis View the most recent version of ICD-9-CM 461 461 is a non-specific code that cannot be used to specify a diagnosis 461 Includes abscess, acute, of sinus (accessory) (nasal) empyema, acute, of sinus (accessory) (nasal) infection, acute, of sinus (accessory) (nasal) inflammation, acute, of sinus (accessory) (nasal) suppuration, acute, of sinus (accessory) (nasal) 461 Excludes chronic or unspecified sinusitis (473.0-473.9)