If patient comes for the re-excision of a dysplastic nevus. Do I bill
the re-excision using a benign or malignant ICD-9?
Follow this to do this properly.
Check pathology report from the original biopsy and make sure it states "dysplastic nevus." If biopsy showed a dysplastic lesion, then the diagnosis is benign, and you should report the diagnosis as 238.2 (Neoplasm of uncertain behavior of skin).
With that diagnosis, you should code the re-excision using a code from the series 11400-11446 (Excision, benign lesion ...) based on lesion's site and size.Important:
If you have a previous malignant lesion diagnosis and the surgeon performs a re-excision because there was a concern about clear margins from the first excision, use the original diagnosis code and the same family of lesion excision codes, even if the pathology subsequently comes back as benign.
Follow this to do this properly.
Check pathology report from the original biopsy and make sure it states "dysplastic nevus." If biopsy showed a dysplastic lesion, then the diagnosis is benign, and you should report the diagnosis as 238.2 (Neoplasm of uncertain behavior of skin).
With that diagnosis, you should code the re-excision using a code from the series 11400-11446 (Excision, benign lesion ...) based on lesion's site and size.Important:
If you have a previous malignant lesion diagnosis and the surgeon performs a re-excision because there was a concern about clear margins from the first excision, use the original diagnosis code and the same family of lesion excision codes, even if the pathology subsequently comes back as benign.
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