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09NX Sphenoid Sinus, Left
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09NX0 Open
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09NX0Z No Device
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09NX0ZZRelease Left Sphenoid Sinus, Open Approach
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09NX3 Percutaneous
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09NX3Z No Device
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09NX3ZZRelease Left Sphenoid Sinus, Percutaneous Approach
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09NX4 Percutaneous Endoscopic
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09NX4Z No Device
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09NX4ZZRelease Left Sphenoid Sinus, Percutaneous Endoscopic Approach
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09NX7 Via Natural or Artificial Opening
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09NX7Z No Device
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09NX8 Via Natural or Artificial Opening Endoscopic
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09NX8Z No Device
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09NX8ZZRelease Left Sphenoid Sinus, Via Natural or Artificial Opening Endoscopic
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09NXX External
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09NXXZ No Device
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