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09N4 External Auditory Canal, Left
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09N40 Open
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09N40Z No Device
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09N40ZZRelease Left External Auditory Canal, Open Approach
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09N43 Percutaneous
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09N43Z No Device
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09N43ZZRelease Left External Auditory Canal, Percutaneous Approach
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09N44 Percutaneous Endoscopic
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09N44Z No Device
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09N44ZZRelease Left External Auditory Canal, Percutaneous Endoscopic Approach
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09N47 Via Natural or Artificial Opening
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09N47Z No Device
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09N47ZZRelease Left External Auditory Canal, Via Natural or Artificial Opening
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09N48 Via Natural or Artificial Opening Endoscopic
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09N48Z No Device
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09N48ZZRelease Left External Auditory Canal, Via Natural or Artificial Opening Endoscopic
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09N4X External
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09N4XZ No Device
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09N4XZZRelease Left External Auditory Canal, External Approach
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