09NF0ZZ | Release Right Eustachian Tube, Open Approach |
09NF3ZZ | Release Right Eustachian Tube, Percutaneous Approach |
09NF4ZZ | Release Right Eustachian Tube, Percutaneous Endoscopic Approach |
09NF8ZZ | Release Right Eustachian Tube, Via Natural or Artificial Opening Endoscopic |