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09NV Ethmoid Sinus, Left
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09NV0 Open
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09NV0Z No Device
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09NV0ZZRelease Left Ethmoid Sinus, Open Approach
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09NV3 Percutaneous
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09NV3Z No Device
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09NV3ZZRelease Left Ethmoid Sinus, Percutaneous Approach
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09NV4 Percutaneous Endoscopic
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09NV4Z No Device
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09NV4ZZRelease Left Ethmoid Sinus, Percutaneous Endoscopic Approach
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09NV7 Via Natural or Artificial Opening
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09NV7Z No Device
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09NV8 Via Natural or Artificial Opening Endoscopic
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09NV8Z No Device
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09NV8ZZRelease Left Ethmoid Sinus, Via Natural or Artificial Opening Endoscopic
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09NVX External
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09NVXZ No Device
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