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09BU Ethmoid Sinus, Right
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09BU0 Open
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09BU3 Percutaneous
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09BU4 Percutaneous Endoscopic
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09BU7 Via Natural or Artificial Opening
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09BU7Z No Device
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09BU8 Via Natural or Artificial Opening Endoscopic
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09BUX External
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09BUXZ No Device
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