DISEASES OF THE EAR AND MASTOID PROCESS (380-389)
Use additional external cause code, if applicable, to identify the cause of the ear condition
387 Otosclerosis
Includes:
otospongiosis
387.0: Otosclerosis involving oval window, nonobliterative
387.1: Otosclerosis involving oval window, obliterative
387.2: Cochlear otosclerosis
Otosclerosis involving:
otic capsule
round window
387.8: Other otosclerosis
387.9: Otosclerosis, unspecified
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