2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Other Diseases Of Upper Respiratory Tract 470-478 > Other Diseases Of Upper Respiratory Tract 478.* > 2006 ICD-9-CM Diagnosis 478.24 Retropharyngeal abscess View the most recent version of ICD-9-CM 478.24 A soft tissue infection of the throat with entry usually by the pharynx but sometimes as an extension of a lateral neck infection resulting from a neck injury. The major risk is upper airway obstruction caused by pharyngeal swelling. 478.24 is a specific code that can be used to specify a diagnosis 478.24 contains 3 index entries View the ICD-9-CM Volume 1 478.* hierarchy  Index entries containing 478.24: Abscess (acute) (chronic) (infectional) (lymphangitic) (metastatic) (multiple) (pyogenic) (septic) (with lymphangitis) (see also Cellulitis) 682.9 postpharyngeal 478.24 retropharyngeal 478.24 tuberculous (see also Tuberculosis) 012.8 Gangrene, gangrenous (anemia) (artery) (cellulitis) (dermatitis) (dry) (infective) (moist) (pemphigus) (septic) (skin) (stasis) (ulcer) 785.4 retropharyngeal 478.24