ICD-10-CM > H60-H95 > H65-H75 > H68 > H68.1 > H68.11 H68.11 Osseous obstruction of Eustachian tube Non-Billable/Non-Specific Codes H68.111Osseous obstruction of Eustachian tube, right earH68.112Osseous obstruction of Eustachian tube, left earH68.113Osseous obstruction of Eustachian tube, bilateralH68.119Osseous obstruction of Eustachian tube, unspecified ear