modifier 90

  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. C

    Wiki Modifier 90

    Greetings everyone, I need some guidance on Modifier 90. I am coming from the Health Plan side of things, (Medi-Cal (CA) Managed Care, specifically), and I am looking for feedback on what type of providers typically use modifier 90 for their billing. I understand that the provider would use the...
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