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 478.26 Cyst of pharynx or nasopharynx View the most recent version of ICD-9-CM 478.26 478.26 is a specific code that can be used to specify a diagnosis 478.26 contains 7 index entries View the ICD-9-CM Volume 1 478.* hierarchy  Index entries containing 478.26: Cyst (mucus) (retention) (serous) (simple) bursa, bursal 727.49 pharyngeal 478.26 hypopharynx 478.26 nasopharynx 478.26 pharynx (wall) 478.26 Thornwaldt's, Tornwaldt's 478.26 Thornwaldt's, Tornwaldt's cyst 478.26 Tornwaldt's bursitis (disease) (pharyngeal bursitis) 478.29 cyst 478.26