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09TT Frontal Sinus, Left
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09TT0 Open
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09TT0Z No Device
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09TT0ZZResection of Left Frontal Sinus, Open Approach
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09TT4 Percutaneous Endoscopic
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09TT4Z No Device
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09TT4ZZResection of Left Frontal Sinus, Percutaneous Endoscopic Approach
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09TT7 Via Natural or Artificial Opening
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09TT7Z No Device
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09TT8 Via Natural or Artificial Opening Endoscopic
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09TT8Z No Device
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09TT8ZZResection of Left Frontal Sinus, Via Natural or Artificial Opening Endoscopic
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09TTX External
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09TTXZ No Device
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