ICD-10-CM > H60-H95 > H65-H75 > H69 > H69.9 H69.9 Unspecified Eustachian tube disorder Non-Billable/Non-Specific Codes H69.90Unspecified Eustachian tube disorder, unspecified earH69.91Unspecified Eustachian tube disorder, right earH69.92Unspecified Eustachian tube disorder, left earH69.93Unspecified Eustachian tube disorder, bilateral