Posted Date
Effective Date
Update Type Test Methodology Changed
CPT Code 84402, 84403
Order Code MTGRP

Testosterone, Total and Free
Order Code: MTGRP
Fee Code: AA480, AA479
Reference Laboratory: Mayo TGRP
Mayo Clinic Laboratories will update the test methodology from Equilibrium Dialysis to Equilibrium Dialysis/Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) effective June 30, 2022. This update will result in changes to the age and sex specific reference ranges.