Effective for dates of services on or after August 1, 2008, new guidelines for Treatment Authorization Request (TAR) and electronic TAR (eTAR) submissions apply for split-billed Magnetic Resonance Imaging (MRI) or Magnetic Resonance Angiography (MRA) services. Providers must submit TARs in the following manner:

• If a submitting provider and rendering provider submit claims on MRA or MRIs services, the TAR should be submitted with two service lines. The first line should display the CPT-4 code and the modifier TC (technical component). The second line should display the CPT-4 code and the modifier 26 (professional component). This allows both providers to bill with the same TAR.
• If one provider rendered both professional and technical services, the TAR should be completed using one line with the modifier ZS.