ICD-10-CM > H60-H95 > H65-H75 > H66 > H66.4 H66.4 Suppurative otitis media, unspecified Non-Billable/Non-Specific Applicable To Purulent otitis media NOS Use Additional code for any associated perforated tympanic membrane (H72.-) Codes H66.40Suppurative otitis media, unspecified, unspecified earH66.41Suppurative otitis media, unspecified, right earH66.42Suppurative otitis media, unspecified, left earH66.43Suppurative otitis media, unspecified, bilateral