2008 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.* >  2008 ICD-9-CM Diagnosis 473.9
Unspecified sinusitis (chronic) On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date.
The 2009 version of ICD-9-CM 473.9 can be accessed here. - 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
473.9 also known as:
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) 478.19
- 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
- sinus (cystic) (see also Sinusitis) 473.9
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 478.19
- 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 478.19
- 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
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
- sinus (accessory) (chronic) (nasal) (see also Sinusitis) 473.9
Pyocele- sinus (accessory) (nasal) (see also Sinusitis) 473.9
- turbinate (bone) 473.9
Rhinolith 478.19- nasal sinus (see also Sinusitis) 473.9
Sequestrum- sinus (accessory) (nasal) (see also Sinusitis) 473.9
Sinusitis (accessory) (nasal) (hyperplastic) (nonpurulent) (purulent) (chronic) 473.9- with influenza, flu, or grippe 487.1
- acute 461.9
- allergic (see also Fever, hay) 477.9
- antrum - see Sinusitis, maxillary
- due to
- ethmoidal 473.2
- frontal 473.1
- influenzal 478.19
- maxillary 473.0
- specified site NEC 473.8
- sphenoidal 473.3
- 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
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