ICD-10-CM > H60-H95 > H65-H75 > H68 > H68.1 H68.1 Obstruction of Eustachian tube Non-Billable/Non-Specific Applicable To Stenosis of Eustachian tubeStricture of Eustachian tube Codes H68.10Unspecified obstruction of Eustachian tubeH68.101Unspecified obstruction of Eustachian tube, right earH68.102Unspecified obstruction of Eustachian tube, left earH68.103Unspecified obstruction of Eustachian tube, bilateralH68.109Unspecified obstruction of Eustachian tube, unspecified earH68.11Osseous obstruction of Eustachian tubeH68.111Osseous 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 earH68.12Intrinsic cartilagenous obstruction of Eustachian tubeH68.121Intrinsic cartilagenous obstruction of Eustachian tube, right earH68.122Intrinsic cartilagenous obstruction of Eustachian tube, left earH68.123Intrinsic cartilagenous obstruction of Eustachian tube, bilateralH68.129Intrinsic cartilagenous obstruction of Eustachian tube, unspecified earH68.13Extrinsic cartilagenous obstruction of Eustachian tubeH68.131Extrinsic cartilagenous obstruction of Eustachian tube, right earH68.132Extrinsic cartilagenous obstruction of Eustachian tube, left earH68.133Extrinsic cartilagenous obstruction of Eustachian tube, bilateralH68.139Extrinsic cartilagenous obstruction of Eustachian tube, unspecified ear