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| 0N9000Z | Drainage of Skull with Drainage Device, Open Approach |
| 0N900ZX | Drainage of Skull, Open Approach, Diagnostic |
| 0N900ZZ | Drainage of Skull, Open Approach |
| 0N9030Z | Drainage of Skull with Drainage Device, Percutaneous Approach |
| 0N903ZX | Drainage of Skull, Percutaneous Approach, Diagnostic |
| 0N903ZZ | Drainage of Skull, Percutaneous Approach |
| 0N9040Z | Drainage of Skull with Drainage Device, Percutaneous Endoscopic Approach |
| 0N904ZX | Drainage of Skull, Percutaneous Endoscopic Approach, Diagnostic |
| 0N904ZZ | Drainage of Skull, Percutaneous Endoscopic Approach |
| 0N9100Z | Drainage of Frontal Bone with Drainage Device, Open Approach |
| 0N910ZX | Drainage of Frontal Bone, Open Approach, Diagnostic |
| 0N910ZZ | Drainage of Frontal Bone, Open Approach |
| 0N9130Z | Drainage of Frontal Bone with Drainage Device, Percutaneous Approach |
| 0N913ZX | Drainage of Frontal Bone, Percutaneous Approach, Diagnostic |
| 0N913ZZ | Drainage of Frontal Bone, Percutaneous Approach |
| 0N9140Z | Drainage of Frontal Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N914ZX | Drainage of Frontal Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N914ZZ | Drainage of Frontal Bone, Percutaneous Endoscopic Approach |
| 0N9300Z | Drainage of Right Parietal Bone with Drainage Device, Open Approach |
| 0N930ZX | Drainage of Right Parietal Bone, Open Approach, Diagnostic |
| 0N930ZZ | Drainage of Right Parietal Bone, Open Approach |
| 0N9330Z | Drainage of Right Parietal Bone with Drainage Device, Percutaneous Approach |
| 0N933ZX | Drainage of Right Parietal Bone, Percutaneous Approach, Diagnostic |
| 0N933ZZ | Drainage of Right Parietal Bone, Percutaneous Approach |
| 0N9340Z | Drainage of Right Parietal Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N934ZX | Drainage of Right Parietal Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N934ZZ | Drainage of Right Parietal Bone, Percutaneous Endoscopic Approach |
| 0N9400Z | Drainage of Left Parietal Bone with Drainage Device, Open Approach |
| 0N940ZX | Drainage of Left Parietal Bone, Open Approach, Diagnostic |
| 0N940ZZ | Drainage of Left Parietal Bone, Open Approach |
| 0N9430Z | Drainage of Left Parietal Bone with Drainage Device, Percutaneous Approach |
| 0N943ZX | Drainage of Left Parietal Bone, Percutaneous Approach, Diagnostic |
| 0N943ZZ | Drainage of Left Parietal Bone, Percutaneous Approach |
| 0N9440Z | Drainage of Left Parietal Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N944ZX | Drainage of Left Parietal Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N944ZZ | Drainage of Left Parietal Bone, Percutaneous Endoscopic Approach |
| 0N9500Z | Drainage of Right Temporal Bone with Drainage Device, Open Approach |
| 0N950ZX | Drainage of Right Temporal Bone, Open Approach, Diagnostic |
| 0N950ZZ | Drainage of Right Temporal Bone, Open Approach |
| 0N9530Z | Drainage of Right Temporal Bone with Drainage Device, Percutaneous Approach |
| 0N953ZX | Drainage of Right Temporal Bone, Percutaneous Approach, Diagnostic |
| 0N953ZZ | Drainage of Right Temporal Bone, Percutaneous Approach |
| 0N9540Z | Drainage of Right Temporal Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N954ZX | Drainage of Right Temporal Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N954ZZ | Drainage of Right Temporal Bone, Percutaneous Endoscopic Approach |
| 0N9600Z | Drainage of Left Temporal Bone with Drainage Device, Open Approach |
| 0N960ZX | Drainage of Left Temporal Bone, Open Approach, Diagnostic |
| 0N960ZZ | Drainage of Left Temporal Bone, Open Approach |
| 0N9630Z | Drainage of Left Temporal Bone with Drainage Device, Percutaneous Approach |
| 0N963ZX | Drainage of Left Temporal Bone, Percutaneous Approach, Diagnostic |
| 0N963ZZ | Drainage of Left Temporal Bone, Percutaneous Approach |
| 0N9640Z | Drainage of Left Temporal Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N964ZX | Drainage of Left Temporal Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N964ZZ | Drainage of Left Temporal Bone, Percutaneous Endoscopic Approach |
| 0N9700Z | Drainage of Occipital Bone with Drainage Device, Open Approach |
| 0N970ZX | Drainage of Occipital Bone, Open Approach, Diagnostic |
| 0N970ZZ | Drainage of Occipital Bone, Open Approach |
| 0N9730Z | Drainage of Occipital Bone with Drainage Device, Percutaneous Approach |
| 0N973ZX | Drainage of Occipital Bone, Percutaneous Approach, Diagnostic |
| 0N973ZZ | Drainage of Occipital Bone, Percutaneous Approach |
| 0N9740Z | Drainage of Occipital Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N974ZX | Drainage of Occipital Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N974ZZ | Drainage of Occipital Bone, Percutaneous Endoscopic Approach |
| 0N9B00Z | Drainage of Nasal Bone with Drainage Device, Open Approach |
| 0N9B0ZX | Drainage of Nasal Bone, Open Approach, Diagnostic |
| 0N9B0ZZ | Drainage of Nasal Bone, Open Approach |
| 0N9B30Z | Drainage of Nasal Bone with Drainage Device, Percutaneous Approach |
| 0N9B3ZX | Drainage of Nasal Bone, Percutaneous Approach, Diagnostic |
| 0N9B3ZZ | Drainage of Nasal Bone, Percutaneous Approach |
| 0N9B40Z | Drainage of Nasal Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9B4ZX | Drainage of Nasal Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9B4ZZ | Drainage of Nasal Bone, Percutaneous Endoscopic Approach |
| 0N9C00Z | Drainage of Sphenoid Bone with Drainage Device, Open Approach |
| 0N9C0ZX | Drainage of Sphenoid Bone, Open Approach, Diagnostic |
| 0N9C0ZZ | Drainage of Sphenoid Bone, Open Approach |
| 0N9C30Z | Drainage of Sphenoid Bone with Drainage Device, Percutaneous Approach |
| 0N9C3ZX | Drainage of Sphenoid Bone, Percutaneous Approach, Diagnostic |
| 0N9C3ZZ | Drainage of Sphenoid Bone, Percutaneous Approach |
| 0N9C40Z | Drainage of Sphenoid Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9C4ZX | Drainage of Sphenoid Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9C4ZZ | Drainage of Sphenoid Bone, Percutaneous Endoscopic Approach |
| 0N9F00Z | Drainage of Right Ethmoid Bone with Drainage Device, Open Approach |
| 0N9F0ZX | Drainage of Right Ethmoid Bone, Open Approach, Diagnostic |
| 0N9F0ZZ | Drainage of Right Ethmoid Bone, Open Approach |
| 0N9F30Z | Drainage of Right Ethmoid Bone with Drainage Device, Percutaneous Approach |
| 0N9F3ZX | Drainage of Right Ethmoid Bone, Percutaneous Approach, Diagnostic |
| 0N9F3ZZ | Drainage of Right Ethmoid Bone, Percutaneous Approach |
| 0N9F40Z | Drainage of Right Ethmoid Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9F4ZX | Drainage of Right Ethmoid Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9F4ZZ | Drainage of Right Ethmoid Bone, Percutaneous Endoscopic Approach |
| 0N9G00Z | Drainage of Left Ethmoid Bone with Drainage Device, Open Approach |
| 0N9G0ZX | Drainage of Left Ethmoid Bone, Open Approach, Diagnostic |
| 0N9G0ZZ | Drainage of Left Ethmoid Bone, Open Approach |
| 0N9G30Z | Drainage of Left Ethmoid Bone with Drainage Device, Percutaneous Approach |
| 0N9G3ZX | Drainage of Left Ethmoid Bone, Percutaneous Approach, Diagnostic |
| 0N9G3ZZ | Drainage of Left Ethmoid Bone, Percutaneous Approach |
| 0N9G40Z | Drainage of Left Ethmoid Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9G4ZX | Drainage of Left Ethmoid Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9G4ZZ | Drainage of Left Ethmoid Bone, Percutaneous Endoscopic Approach |
| 0N9H00Z | Drainage of Right Lacrimal Bone with Drainage Device, Open Approach |
| 0N9H0ZX | Drainage of Right Lacrimal Bone, Open Approach, Diagnostic |
| 0N9H0ZZ | Drainage of Right Lacrimal Bone, Open Approach |
| 0N9H30Z | Drainage of Right Lacrimal Bone with Drainage Device, Percutaneous Approach |
| 0N9H3ZX | Drainage of Right Lacrimal Bone, Percutaneous Approach, Diagnostic |
| 0N9H3ZZ | Drainage of Right Lacrimal Bone, Percutaneous Approach |
| 0N9H40Z | Drainage of Right Lacrimal Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9H4ZX | Drainage of Right Lacrimal Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9H4ZZ | Drainage of Right Lacrimal Bone, Percutaneous Endoscopic Approach |
| 0N9J00Z | Drainage of Left Lacrimal Bone with Drainage Device, Open Approach |
| 0N9J0ZX | Drainage of Left Lacrimal Bone, Open Approach, Diagnostic |
| 0N9J0ZZ | Drainage of Left Lacrimal Bone, Open Approach |
| 0N9J30Z | Drainage of Left Lacrimal Bone with Drainage Device, Percutaneous Approach |
| 0N9J3ZX | Drainage of Left Lacrimal Bone, Percutaneous Approach, Diagnostic |
| 0N9J3ZZ | Drainage of Left Lacrimal Bone, Percutaneous Approach |
| 0N9J40Z | Drainage of Left Lacrimal Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9J4ZX | Drainage of Left Lacrimal Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9J4ZZ | Drainage of Left Lacrimal Bone, Percutaneous Endoscopic Approach |
| 0N9K00Z | Drainage of Right Palatine Bone with Drainage Device, Open Approach |
| 0N9K0ZX | Drainage of Right Palatine Bone, Open Approach, Diagnostic |
| 0N9K0ZZ | Drainage of Right Palatine Bone, Open Approach |
| 0N9K30Z | Drainage of Right Palatine Bone with Drainage Device, Percutaneous Approach |
| 0N9K3ZX | Drainage of Right Palatine Bone, Percutaneous Approach, Diagnostic |
| 0N9K3ZZ | Drainage of Right Palatine Bone, Percutaneous Approach |
| 0N9K40Z | Drainage of Right Palatine Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9K4ZX | Drainage of Right Palatine Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9K4ZZ | Drainage of Right Palatine Bone, Percutaneous Endoscopic Approach |
| 0N9L00Z | Drainage of Left Palatine Bone with Drainage Device, Open Approach |
| 0N9L0ZX | Drainage of Left Palatine Bone, Open Approach, Diagnostic |
| 0N9L0ZZ | Drainage of Left Palatine Bone, Open Approach |
| 0N9L30Z | Drainage of Left Palatine Bone with Drainage Device, Percutaneous Approach |
| 0N9L3ZX | Drainage of Left Palatine Bone, Percutaneous Approach, Diagnostic |
| 0N9L3ZZ | Drainage of Left Palatine Bone, Percutaneous Approach |
| 0N9L40Z | Drainage of Left Palatine Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9L4ZX | Drainage of Left Palatine Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9L4ZZ | Drainage of Left Palatine Bone, Percutaneous Endoscopic Approach |
| 0N9M00Z | Drainage of Right Zygomatic Bone with Drainage Device, Open Approach |
| 0N9M0ZX | Drainage of Right Zygomatic Bone, Open Approach, Diagnostic |
| 0N9M0ZZ | Drainage of Right Zygomatic Bone, Open Approach |
| 0N9M30Z | Drainage of Right Zygomatic Bone with Drainage Device, Percutaneous Approach |
| 0N9M3ZX | Drainage of Right Zygomatic Bone, Percutaneous Approach, Diagnostic |
| 0N9M3ZZ | Drainage of Right Zygomatic Bone, Percutaneous Approach |
| 0N9M40Z | Drainage of Right Zygomatic Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9M4ZX | Drainage of Right Zygomatic Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9M4ZZ | Drainage of Right Zygomatic Bone, Percutaneous Endoscopic Approach |
| 0N9N00Z | Drainage of Left Zygomatic Bone with Drainage Device, Open Approach |
| 0N9N0ZX | Drainage of Left Zygomatic Bone, Open Approach, Diagnostic |
| 0N9N0ZZ | Drainage of Left Zygomatic Bone, Open Approach |
| 0N9N30Z | Drainage of Left Zygomatic Bone with Drainage Device, Percutaneous Approach |
| 0N9N3ZX | Drainage of Left Zygomatic Bone, Percutaneous Approach, Diagnostic |
| 0N9N3ZZ | Drainage of Left Zygomatic Bone, Percutaneous Approach |
| 0N9N40Z | Drainage of Left Zygomatic Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9N4ZX | Drainage of Left Zygomatic Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9N4ZZ | Drainage of Left Zygomatic Bone, Percutaneous Endoscopic Approach |
| 0N9P00Z | Drainage of Right Orbit with Drainage Device, Open Approach |
| 0N9P0ZX | Drainage of Right Orbit, Open Approach, Diagnostic |
| 0N9P0ZZ | Drainage of Right Orbit, Open Approach |
| 0N9P30Z | Drainage of Right Orbit with Drainage Device, Percutaneous Approach |
| 0N9P3ZX | Drainage of Right Orbit, Percutaneous Approach, Diagnostic |
| 0N9P3ZZ | Drainage of Right Orbit, Percutaneous Approach |
| 0N9P40Z | Drainage of Right Orbit with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9P4ZX | Drainage of Right Orbit, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9P4ZZ | Drainage of Right Orbit, Percutaneous Endoscopic Approach |
| 0N9Q00Z | Drainage of Left Orbit with Drainage Device, Open Approach |
| 0N9Q0ZX | Drainage of Left Orbit, Open Approach, Diagnostic |
| 0N9Q0ZZ | Drainage of Left Orbit, Open Approach |
| 0N9Q30Z | Drainage of Left Orbit with Drainage Device, Percutaneous Approach |
| 0N9Q3ZX | Drainage of Left Orbit, Percutaneous Approach, Diagnostic |
| 0N9Q3ZZ | Drainage of Left Orbit, Percutaneous Approach |
| 0N9Q40Z | Drainage of Left Orbit with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9Q4ZX | Drainage of Left Orbit, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9Q4ZZ | Drainage of Left Orbit, Percutaneous Endoscopic Approach |
| 0N9R00Z | Drainage of Maxilla with Drainage Device, Open Approach |
| 0N9R0ZX | Drainage of Maxilla, Open Approach, Diagnostic |
| 0N9R0ZZ | Drainage of Maxilla, Open Approach |
| 0N9R30Z | Drainage of Maxilla with Drainage Device, Percutaneous Approach |
| 0N9R3ZX | Drainage of Maxilla, Percutaneous Approach, Diagnostic |
| 0N9R3ZZ | Drainage of Maxilla, Percutaneous Approach |
| 0N9R40Z | Drainage of Maxilla with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9R4ZX | Drainage of Maxilla, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9R4ZZ | Drainage of Maxilla, Percutaneous Endoscopic Approach |
| 0N9T00Z | Drainage of Right Mandible with Drainage Device, Open Approach |
| 0N9T0ZX | Drainage of Right Mandible, Open Approach, Diagnostic |
| 0N9T0ZZ | Drainage of Right Mandible, Open Approach |
| 0N9T30Z | Drainage of Right Mandible with Drainage Device, Percutaneous Approach |
| 0N9T3ZX | Drainage of Right Mandible, Percutaneous Approach, Diagnostic |
| 0N9T3ZZ | Drainage of Right Mandible, Percutaneous Approach |
| 0N9T40Z | Drainage of Right Mandible with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9T4ZX | Drainage of Right Mandible, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9T4ZZ | Drainage of Right Mandible, Percutaneous Endoscopic Approach |
| 0N9V00Z | Drainage of Left Mandible with Drainage Device, Open Approach |
| 0N9V0ZX | Drainage of Left Mandible, Open Approach, Diagnostic |
| 0N9V0ZZ | Drainage of Left Mandible, Open Approach |
| 0N9V30Z | Drainage of Left Mandible with Drainage Device, Percutaneous Approach |
| 0N9V3ZX | Drainage of Left Mandible, Percutaneous Approach, Diagnostic |
| 0N9V3ZZ | Drainage of Left Mandible, Percutaneous Approach |
| 0N9V40Z | Drainage of Left Mandible with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9V4ZX | Drainage of Left Mandible, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9V4ZZ | Drainage of Left Mandible, Percutaneous Endoscopic Approach |
| 0N9X00Z | Drainage of Hyoid Bone with Drainage Device, Open Approach |
| 0N9X0ZX | Drainage of Hyoid Bone, Open Approach, Diagnostic |
| 0N9X0ZZ | Drainage of Hyoid Bone, Open Approach |
| 0N9X30Z | Drainage of Hyoid Bone with Drainage Device, Percutaneous Approach |
| 0N9X3ZX | Drainage of Hyoid Bone, Percutaneous Approach, Diagnostic |
| 0N9X3ZZ | Drainage of Hyoid Bone, Percutaneous Approach |
| 0N9X40Z | Drainage of Hyoid Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N9X4ZX | Drainage of Hyoid Bone, Percutaneous Endoscopic Approach, Diagnostic |
| 0N9X4ZZ | Drainage of Hyoid Bone, Percutaneous Endoscopic Approach |