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09BW Sphenoid Sinus, Right
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09BW0 Open
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09BW3 Percutaneous
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09BW4 Percutaneous Endoscopic
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09BW7 Via Natural or Artificial Opening
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09BW7Z No Device
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09BW8 Via Natural or Artificial Opening Endoscopic
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09BWX External
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09BWXZ No Device
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