CPT for urine drug test

We are an urgent care center and bc denied CPT code 80100 it is for outside lab. What clia waived CPT code/modifier are we allowed to use.

Modifier?

Your message is a little unclear. Did you send it out or do it in house as a CLIA waived test? Use 80101 or 80100 QW if waived test, and 80101 if sent out. And be sure insurer has you CLIA waived number on file.