Home > 2007 ICD-9-CM Diagnosis Codes > Diseases Of The Respiratory System 460-519 > Other Diseases Of Upper Respiratory Tract 470-478 > Chronic sinusitis 473-
2007 ICD-9-CM Diagnosis Code 473.9
Unspecified sinusitis (chronic)
- inflammatory process of the mucous membranes of the paranasal sinuses that occurs in three stages: acute, subacute, and chronic; results from any condition causing ostial obstruction or from pathophysiologic changes in the mucociliary transport mechanism.
- Short description: CHRONIC SINUSITIS NOS.
- ICD-9-CM 473.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
- You are viewing the 2007 version of ICD-9-CM 473.9.
- More recent version(s) of ICD-9-CM 473.9: 2008 2009 2010 2011 2012 2013.
473.9 Alternative Terminology
- Abscess of accessory sinus bone
- Abscess of bone of accessory sinus
Applies To
- Sinusitis (chronic) NOS
Convert 473.9 to ICD-10-CM 
ICD-9-CM 473.9 converts directly to:
- 2013 ICD-10-CM J32.9 Chronic sinusitis, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 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
- 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
- Change(s) (of) - see also Removal of
- Degeneration, degenerative
- 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 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
- Infection, infected, infective (opportunistic) 136.9
- accessory sinus (chronic) (see also Sinusitis) 473.9
- nasal sinus (chronic (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)
- 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
- maxillary 473.0
- Sinusitis (accessory) (nasal) (hyperplastic) (nonpurulent) (purulent) (chronic) 473.9
- with influenza, flu, or grippe 487.1
- allergic (see also Fever, hay) 477.9
- antrum - see Sinusitis, maxillary
- influenzal 478.19
- specified site NEC 473.8
- 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
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 473.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2007 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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