2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Other Diseases Of Upper Respiratory Tract 470-478 > Chronic Sinusitis 473.* > 2006 ICD-9-CM Diagnosis 473.9 Unspecified sinusitis (chronic) View the most recent version of ICD-9-CM 473.9 An inflammatory process of the mucous membranes of the paranasal sinuses that occurs in three stages: acute, subacute, and chronic. Sinusitis results from any condition causing ostial obstruction or from pathophysiologic changes in the mucociliary transport mechanism. 473.9 is a specific code that can be used to specify a diagnosis 473.9 contains 37 index entries View the ICD-9-CM Volume 1 473.* hierarchy Alternate Terminology Sinusitis (chronic) NOS  Index entries containing 473.9: Abscess (acute) (chronic) (infectional) (lymphangitic) (metastatic) (multiple) (pyogenic) (septic) (with lymphangitis) (see also Cellulitis) 682.9 accessory sinus (chronic) (see also Sinusitis) 473.9 bone (subperiosteal) (see also Osteomyelitis) 730.0 accessory sinus (chronic) (see also Sinusitis) 473.9 nasal (fossa) (septum) sinus (chronic) (see also Sinusitis) 473.9 parasinus (see also Sinusitis) 473.9 perisinuous (nose) (see also Sinusitis) 473.9 sinus (accessory) (chronic) (nasal) (see also Sinusitis) 473.9 intracranial venous (any) 324.0 late effect - see category 326 Change(s) (of) - see also Removal of hypertrophic nasal sinus (see also Sinusitis) 473.9 Degeneration, degenerative nasal sinus (mucosa) (see also Sinusitis) 473.9 frontal 473.1 maxillary 473.0 sinus (cystic) (see also Sinusitis) 473.9 polypoid 471.1 Empyema (chest) (diaphragmatic) (double) (encapsulated) (general) (interlobar) (lung) (medial) (necessitatis) (perforating chest wall) (pleura) (pneumococcal) (residual) (sacculated) (streptococcal) (supradiaphragmatic) 510.9 accessory sinus (chronic) (see also Sinusitis) 473.9 nasal sinus (chronic) (see also Sinusitis) 473.9 sinus (accessory) (nasal) (see also Sinusitis) 473.9 Fistula (sinus) 686.9 accessory sinuses (see also Sinusitis) 473.9 nasal sinus (see also Sinusitis) 473.9 Granuloma NEC 686.1 nasal sinus (see also Sinusitis) 473.9 sinus (accessory) (infectional) (nasal) (see also Sinusitis) 473.9 Hypertrophy, hypertrophic nasal sinus (see also Sinusitis) 473.9 Infection, infected, infective (opportunistic) 136.9 accessory sinus (chronic) (see also Sinusitis) 473.9 nasal sinus (chronic (see also Sinusitis) 473.9 sinus (see also Sinusitis) 473.9 pilonidal 685.1 with abscess 685.0 skin NEC 686.9 Inflammation, inflamed, inflammatory (with exudation) accessory sinus (chronic) (see also Sinusitis) 473.9 nasal sinus (chronic) (see also Sinusitis) 473.9 sinus (see also Sinusitis) 473.9 Lesion(s) sinus (accessory) (nasal) (see also Sinusitis) 473.9 Obstruction, obstructed, obstructive sinus (accessory) (nasal) (see also Sinusitis) 473.9 Perforation, perforative (nontraumatic) nasal sinus (see also Sinusitis) 473.9 congenital 748.1 sinus (accessory) (chronic) (nasal) (see also Sinusitis) 473.9 Pyocele sinus (accessory) (nasal) (see also Sinusitis) 473.9 turbinate (bone) 473.9 Rhinolith nasal sinus (see also Sinusitis) 473.9 Sequestrum sinus (accessory) (nasal) (see also Sinusitis) 473.9 maxillary 473.0 Sinusitis (accessory) (nasal) (hyperplastic) (nonpurulent) (purulent) (chronic) 473.9 with influenza, flu, or grippe 487.1 acute 461.9 ethmoidal 461.2 frontal 461.1 maxillary 461.0 specified type NEC 461.8 sphenoidal 461.3 allergic (see also Fever, hay) 477.9 antrum - see Sinusitis, maxillary due to fungus, any sinus 117.9 high altitude 993.1 ethmoidal 473.2 acute 461.2 frontal 473.1 acute 461.1 influenzal maxillary 473.0 acute 461.0 specified site NEC 473.8 sphenoidal 473.3 acute 461.3 syphilitic, any sinus 095.8 tuberculous, any sinus (see also Tuberculosis) 012.8 Suppuration, suppurative - see also condition accessory sinus (chronic) (see also Sinusitis) 473.9 nasal sinus (chronic) (see also Sinusitis) 473.9 sinus (nasal) (see also Sinusitis) 473.9 Trouble - see also Disease sinus (see also Sinusitis) 473.9 Vacuum in sinus (accessory) (nasal) (see also Sinusitis) 473.9