Look to Pathology/Lab Coding Alert for continued in-depth coverage of these codes, with articles such as "Here's How to Use the New B, NK and Stem Cell Codes" in this issue. Also refer back to our previous articles on the new codes, such as "Get the Scoop on the Flow Cytometry 'Per Marker' Debate," in October 2004, and "Get Ready for Morphometric Analysis Code Changes," and "IHC Coding Preview: Know the Method for CPT 2005" in December 2004.