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 > Nonsuppurative Otitis Media And Eustachian Tube Disorders 381.* > 2006 ICD-9-CM Diagnosis 381.63 Extrinsic cartilagenous obstruction of eustachian tube View the most recent version of ICD-9-CM 381.63 381.63 is a specific code that can be used to specify a diagnosis 381.63 contains 2 index entries View the ICD-9-CM Volume 1 381.* hierarchy Alternate Terminology Compression of Eustachian tube  Index entries containing 381.63: Compression Eustachian tube 381.63 Obstruction, obstructed, obstructive Eustachian tube (complete) (partial) 381.60 cartilaginous extrinsic 381.63