Posted Date
Effective Date
Update Type
Test Discontinued
CPT Code
83520
Order Code
TNFA
TEST DISCONTINUED
Tumor Necrosis Factor, Plasma
Order Code: TNFA
Fee Code: 32166 (CPT 83520)
Reference Laboratory: Mayo TNFA
Mayo Clinic Laboratories will discontinue their Tumor Necrosis Factor assay effective November 7, 2024, due to limited clinical utility and a change in the testing platform. The recommended alternative test is the T-Helper Cell Type 1 Cytokine Panel (test ID CYTH1).