Posted Date
Effective Date
Update Type Test Code Change
CPT Code 82542
Order Code LTE4
Referral Laboratory Mayo Medical Laboratories



Leukotriene E4, Urine

Order Code:                  LTE4

Fee Code:                     AA494

Reference Laboratory:   Mayo LTE4


Effective March 1, 2022, Mayo Clinic Laboratories will replace their test ID LTE4 with separate test codes RLTE4 for random urine collections and TLTE4 for 24-hour urine collections.  There will be no change to the fee code or pricing for this assay.