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09N5 Middle Ear, Right
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09N50 Open
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09N50Z No Device
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09N50ZZRelease Right Middle Ear, Open Approach
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09N53 Percutaneous
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09N53Z No Device
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09N54 Percutaneous Endoscopic
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09N54Z No Device
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09N57 Via Natural or Artificial Opening
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09N57Z No Device
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09N58 Via Natural or Artificial Opening Endoscopic
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09N58Z No Device
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09N58ZZRelease Right Middle Ear, Via Natural or Artificial Opening Endoscopic
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09N5X External
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09N5XZ No Device
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