External Auditory Canal, Left
- 09N40 - Open
- 09N40Z
- 09N40ZZ - Release External Auditory Canal, Left to No Qualifier with No Device, Open Approach
- 09N43 - Percutaneous
- 09N43Z
- 09N43ZZ - Release External Auditory Canal, Left to No Qualifier with No Device, Percutaneous Approach
- 09N44 - Percutaneous Endoscopic
- 09N44Z
- 09N44ZZ - Release External Auditory Canal, Left to No Qualifier with No Device, Percutaneous Endoscopic Approach
- 09N47 - Via Natural or Artificial Opening
- 09N47Z
- 09N47ZZ - Release External Auditory Canal, Left to No Qualifier with No Device, Via Natural or Artificial Opening Approach
- 09N48 - Via Natural or Artificial Opening Endoscopic
- 09N48Z
- 09N48ZZ - Release External Auditory Canal, Left to No Qualifier with No Device, Via Natural or Artificial Opening Endoscopic Approach
- 09N4X - External
- 09N4XZ
- 09N4XZZ - Release External Auditory Canal, Left to No Qualifier with No Device, External Approach