| 091 | Ear, Nose, Sinus, Bypass |
| 091D070 | Bypass Right Inner Ear to Endolymphatic with Autologous Tissue Substitute, Open Approach |
| 091D0J0 | Bypass Right Inner Ear to Endolymphatic with Synthetic Substitute, Open Approach |
| 091D0Z0 | Bypass Right Inner Ear to Endolymphatic, Open Approach |
| 091E070 | Bypass Left Inner Ear to Endolymphatic with Autologous Tissue Substitute, Open Approach |
| 091E0J0 | Bypass Left Inner Ear to Endolymphatic with Synthetic Substitute, Open Approach |
| 091E0K0 | Bypass Left Inner Ear to Endolymphatic with Nonautologous Tissue Substitute, Open Approach |
| 091E0Z0 | Bypass Left Inner Ear to Endolymphatic, Open Approach |
