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 478.4 Polyp of vocal cord or larynx View the most recent version of ICD-9-CM 478.4 478.4 is a specific code that can be used to specify a diagnosis 478.4 contains 2 index entries View the ICD-9-CM Volume 1 478.* hierarchy 478.4 Excludes adenomatous polyps (212.1)  Index entries containing 478.4: Polyp, polypus larynx (mucous) 478.4 vocal cord (mucous) 478.4