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Thread: Definition of "Extensive" Undermining

  1. #1

    Default Definition of "Extensive" Undermining

    AAPC: Back to School
    My physician documented "Wound edges were undermined for 5mm circumferentially to minimize the tension." She also did a layered closure so I'm trying to figure out if this documentation supports a complex repair. Does anyone know what the minimum measurement would be to support extensive undermining? Or (like simple vs. complex) do I rely on the physician's interpretation of whether or not it was extensive?
    Sue Vermette, CPC

  2. #2
    Join Date
    Apr 2007


    CPT states compex repair includes the repair of wounds requiring MORE THAN layered closure.
    Herbie W Lorona Jr., CPC, CPC-H

  3. #3


    extensive undermining with a layered closure does constitute a complex repair. I hope that answers your question.

  4. #4

    Default Audit-proof Documentation

    Thanks but I'm hoping to find out what the difference is between regular undermining and extensive. Basically, would an auditor consider 5mm of undermining extensive or just part of an intermediate repair? Any insights?
    Sue Vermette, CPC

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