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 > Otosclerosis 387.* > 2006 ICD-9-CM Diagnosis 387.2 Cochlear otosclerosis View the most recent version of ICD-9-CM 387.2 387.2 is a specific code that can be used to specify a diagnosis 387.2 contains 3 index entries View the ICD-9-CM Volume 1 387.* hierarchy Alternate Terminology Otosclerosis involving: otic capsule round window  Index entries containing 387.2: Otosclerosis (general) 387.9 cochlear (endosteal) 387.2 involving otic capsule 387.2 round window 387.2