outside lab

  1. C

    Wiki Modifier 90

    Can anyone provide Place of Service (POS) information on modifier 90, Reference (Outside) Laboratory. Is this modifier applicable only to reporting for POS 11, Office, for the treating/reporting physician or other qualified health care professional that sends a lab out for testing? Or can a...
  2. N

    Wiki Laboratory billing question sending out specimen to another lab- Filling out claim

    I work for a lab receiving outside specimen from substance abuse facilities, we will sometimes have to send these tests out to labcorp when we are not able to run the test in-house. We still bill the patients insurance company and we will receive an invoice from Labcorp. I'm confused as to where...
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