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0CN5 Upper Gingiva
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0CN50 Open
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0CN50Z No Device
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0CN50ZZRelease Upper Gingiva, Open Approach
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0CN53 Percutaneous
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0CN53Z No Device
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0CN53ZZRelease Upper Gingiva, Percutaneous Approach
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0CN54 Percutaneous Endoscopic
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0CN54Z No Device
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0CN57 Via Natural or Artificial Opening
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0CN57Z No Device
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0CN58 Via Natural or Artificial Opening Endoscopic
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0CN58Z No Device
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0CN5X External
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0CN5XZ No Device
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0CN5XZZRelease Upper Gingiva, External Approach
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