| H68001 | Unspecified Eustachian salpingitis, right ear |
| H68002 | Unspecified Eustachian salpingitis, left ear |
| H68003 | Unspecified Eustachian salpingitis, bilateral |
| H68009 | Unspecified Eustachian salpingitis, unspecified ear |
| H6801 | Acute Eustachian salpingitis |
| H68011 | Acute Eustachian salpingitis, right ear |
| H68012 | Acute Eustachian salpingitis, left ear |
| H68013 | Acute Eustachian salpingitis, bilateral |
| H68019 | Acute Eustachian salpingitis, unspecified ear |
| H6802 | Chronic Eustachian salpingitis |
| H68021 | Chronic Eustachian salpingitis, right ear |
| H68022 | Chronic Eustachian salpingitis, left ear |
| H68023 | Chronic Eustachian salpingitis, bilateral |
| H68029 | Chronic Eustachian salpingitis, unspecified ear |
| H681 | Obstruction of Eustachian tube |
| H6810 | Unspecified obstruction of Eustachian tube |
| H68101 | Unspecified obstruction of Eustachian tube, right ear |
| H68102 | Unspecified obstruction of Eustachian tube, left ear |
| H68103 | Unspecified obstruction of Eustachian tube, bilateral |
| H68109 | Unspecified obstruction of Eustachian tube, unspecified ear |
| H6811 | Osseous obstruction of Eustachian tube |
| H68111 | Osseous obstruction of Eustachian tube, right ear |
| H68112 | Osseous obstruction of Eustachian tube, left ear |
| H68113 | Osseous obstruction of Eustachian tube, bilateral |
| H68119 | Osseous obstruction of Eustachian tube, unspecified ear |
| H6812 | Intrinsic cartilagenous obstruction of Eustachian tube |
| H68121 | Intrinsic cartilagenous obstruction of Eustachian tube, right ear |
| H68122 | Intrinsic cartilagenous obstruction of Eustachian tube, left ear |
| H68123 | Intrinsic cartilagenous obstruction of Eustachian tube, bilateral |
| H68129 | Intrinsic cartilagenous obstruction of Eustachian tube, unspecified ear |
| H6813 | Extrinsic cartilagenous obstruction of Eustachian tube |
| H68131 | Extrinsic cartilagenous obstruction of Eustachian tube, right ear |
| H68132 | Extrinsic cartilagenous obstruction of Eustachian tube, left ear |
| H68133 | Extrinsic cartilagenous obstruction of Eustachian tube, bilateral |
| H68139 | Extrinsic cartilagenous obstruction of Eustachian tube, unspecified ear |
| H69 | Other and unspecified disorders of Eustachian tube |
| H690 | Patulous Eustachian tube |
| H6900 | Patulous Eustachian tube, unspecified ear |
| H6901 | Patulous Eustachian tube, right ear |
| H6902 | Patulous Eustachian tube, left ear |
| H6903 | Patulous Eustachian tube, bilateral |
| H698 | Other specified disorders of Eustachian tube |
| H6980 | Other specified disorders of Eustachian tube, unspecified ear |
| H6981 | Other specified disorders of Eustachian tube, right ear |
| H6982 | Other specified disorders of Eustachian tube, left ear |
| H6983 | Other specified disorders of Eustachian tube, bilateral |
| H699 | Unspecified Eustachian tube disorder |
| H6990 | Unspecified Eustachian tube disorder, unspecified ear |
| H6991 | Unspecified Eustachian tube disorder, right ear |
| H6992 | Unspecified Eustachian tube disorder, left ear |