| 09B40ZX | Excision of Left External Auditory Canal, Open Approach, Diagnostic |
| 09B40ZZ | Excision of Left External Auditory Canal, Open Approach |
| 09B43ZX | Excision of Left External Auditory Canal, Percutaneous Approach, Diagnostic |
| 09B44ZX | Excision of Left External Auditory Canal, Percutaneous Endoscopic Approach, Diagnostic |
| 09B44ZZ | Excision of Left External Auditory Canal, Percutaneous Endoscopic Approach |
| 09B47ZX | Excision of Left External Auditory Canal, Via Natural or Artificial Opening, Diagnostic |
| 09B47ZZ | Excision of Left External Auditory Canal, Via Natural or Artificial Opening |
| 09B48ZX | Excision of Left External Auditory Canal, Via Natural or Artificial Opening Endoscopic, Diagnostic |
| 09B48ZZ | Excision of Left External Auditory Canal, Via Natural or Artificial Opening Endoscopic |
| 09B4XZX | Excision of Left External Auditory Canal, External Approach, Diagnostic |
| 09B4XZZ | Excision of Left External Auditory Canal, External Approach |
