| 09BT0ZX | Excision of Left Frontal Sinus, Open Approach, Diagnostic |
| 09BT0ZZ | Excision of Left Frontal Sinus, Open Approach |
| 09BT3ZX | Excision of Left Frontal Sinus, Percutaneous Approach, Diagnostic |
| 09BT4ZX | Excision of Left Frontal Sinus, Percutaneous Endoscopic Approach, Diagnostic |
| 09BT4ZZ | Excision of Left Frontal Sinus, Percutaneous Endoscopic Approach |
| 09BT8ZX | Excision of Left Frontal Sinus, Via Natural or Artificial Opening Endoscopic, Diagnostic |
| 09BT8ZZ | Excision of Left Frontal Sinus, Via Natural or Artificial Opening Endoscopic |
