| Section | 0 | Medical and Surgical |
| Body System | 9 | Ear, Nose, Sinus |
| Operation | 7 | Dilation: Expanding an orifice or the lumen of a tubular body part |
| Body Part F Eustachian Tube, Right G Eustachian Tube, Left |
Approach 0 Open 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic |
Device D Intraluminal Device Z No Device |
Qualifier Z No Qualifier |
| Body Part F Eustachian Tube, Right G Eustachian Tube, Left |
Approach 3 Percutaneous 4 Percutaneous Endoscopic |
Device Z No Device |
Qualifier Z No Qualifier |