2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Diseases Of The Ear And Mastoid Process 380-389 > Disorders Of External Ear 380.* > 2006 ICD-9-CM Diagnosis 380.81 Exostosis of external ear canal View the most recent version of ICD-9-CM 380.81 380.81 is a specific code that can be used to specify a diagnosis 380.81 contains 1 index entry View the ICD-9-CM Volume 1 380.* hierarchy  Index entries containing 380.81: Exostosis 726.91 ear canal, external 380.81