ICD-10-CM > H60-H95 > H65-H75 > H73 > H73.9 H73.9 Unspecified disorder of tympanic membrane Non-Billable/Non-Specific Codes H73.90Unspecified disorder of tympanic membrane, unspecified earH73.91Unspecified disorder of tympanic membrane, right earH73.92Unspecified disorder of tympanic membrane, left earH73.93Unspecified disorder of tympanic membrane, bilateral