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09NW Sphenoid Sinus, Right
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09NW0 Open
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09NW0Z No Device
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09NW0ZZRelease Right Sphenoid Sinus, Open Approach
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09NW3 Percutaneous
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09NW3Z No Device
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09NW3ZZRelease Right Sphenoid Sinus, Percutaneous Approach
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09NW4 Percutaneous Endoscopic
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09NW4Z No Device
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09NW4ZZRelease Right Sphenoid Sinus, Percutaneous Endoscopic Approach
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09NW7 Via Natural or Artificial Opening
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09NW7Z No Device
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09NW8 Via Natural or Artificial Opening Endoscopic
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09NW8Z No Device
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09NW8ZZRelease Right Sphenoid Sinus, Via Natural or Artificial Opening Endoscopic
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09NWX External
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09NWXZ No Device
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