ICD-10-CM > H60-H95 > H65-H75 > H73 > H73.8 > H73.82 H73.82 Atrophic nonflaccid tympanic membrane Non-Billable/Non-Specific Codes H73.821Atrophic nonflaccid tympanic membrane, right earH73.822Atrophic nonflaccid tympanic membrane, left earH73.823Atrophic nonflaccid tympanic membrane, bilateralH73.829Atrophic nonflaccid tympanic membrane, unspecified ear