Question: The physician orders tests for fecal lactoferrin levels in a patient with ongoing diarrhea before, during and after treatment. How should we report the tests? Reader Questions and You Be the Coder were prepared with the assistance of R. M. Stainton Jr., MD, president of Doctors- Anatomic Pathology Services in Jonesboro, Ark.
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Answer: CPT 2006 modified fecal lactoferrin coding to specify that existing code 83630 (Lactoferrin, fecal; qualitative) is for a qualitative analysis, and new code 83631 (Lactoferrin, fecal; quantitative) is for quantitative determination.
Because fecal lactoferrin level is an important indicator of intestinal inflammation, a physician may order quantitative fecal lactoferrin for diagnosing inflammatory gastrointestinal disease or monitoring patient response to therapy. Report the test code (83631) for each specimen the physician submits.