ICD-10-CM > H60-H95 > H65-H75 > H69 > H69.8 H69.8 Other specified disorders of Eustachian tube Non-Billable/Non-Specific Codes H69.80Other specified disorders of Eustachian tube, unspecified earH69.81Other specified disorders of Eustachian tube, right earH69.82Other specified disorders of Eustachian tube, left earH69.83Other specified disorders of Eustachian tube, bilateral