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0CN4 Buccal Mucosa
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0CN40 Open
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0CN40Z No Device
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0CN40ZZRelease Buccal Mucosa, Open Approach
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0CN43 Percutaneous
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0CN43Z No Device
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0CN43ZZRelease Buccal Mucosa, Percutaneous Approach
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0CN44 Percutaneous Endoscopic
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0CN44Z No Device
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0CN47 Via Natural or Artificial Opening
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0CN47Z No Device
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0CN48 Via Natural or Artificial Opening Endoscopic
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0CN48Z No Device
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0CN4X External
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0CN4XZ No Device
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0CN4XZZRelease Buccal Mucosa, External Approach
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