Wiki Definition of "Extensive" Undermining

[SUEV]

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?
Thanks,
Sue

 

[Herbie Lorona]

CPT states compex repair includes the repair of wounds requiring MORE THAN layered closure.

 

[eadun2000]

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

 

[SUEV]

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?

 

[cindymz@att.net]

Extensive undermining is defined as: Distance equal to or greater than the maximum width of the defect, measured perpendicular to the closure line, along at least one entire edge of the defect

https://bulletin.facs.org/2020/01/2020-cpt-coding-changes/

 

[Johnst16]

hello I have a similar question for extensive undermined. the physician noted: interrupted stitches of 3-0 PDS were then used to reapproximate the deeper subcutaneous tissues and obliterate dead space as well as improve the contour deformity from the lesion removal. The wound was then extensively undermined and then closed. The deep dermis was closed with interrupted stitches of 3-0 PDS and running dermal sutures of 4-0 Monocryl to reapproximate the skin. my question does this warrent a complex closure code