ICD-10-CM > H60-H95 > H65-H75 > H73 > H73.1 H73.1 Chronic myringitis Non-Billable/Non-Specific Applicable To Chronic tympanitis Type 1 Excludes chronic myringitis with otitis media (H65, H66) Codes H73.10Chronic myringitis, unspecified earH73.11Chronic myringitis, right earH73.12Chronic myringitis, left earH73.13Chronic myringitis, bilateral