Sign in →

Epic Code LAB10144 DISCONTINUED Thiopurine Methyltransferase (TPMT) Enzyme Level

Important Note

THIS TEST WAS DISCONTINUED ON 11/19/2025

Recommended replacement test: TPMT ACTIVITY [LAB1232000]

Test Name Alias

Thiopurine Methyltransferase Enzyme Level | TPMT | 9114 | 1230101212 | 11092

Reference Range

Normal TPMT Activity: >21.0 EU/mL

Intermediate TMPT Activity: 6.0-21.0 EU/mL

Low TMPT Activity: <6.0 EU/mL

Performing Department

Send Outs

Performing Department Laboratory Location

Send Out to Prometheus Ref. Lab

Methodology

High Pressure Liquid Chromatography (HPLC)

CPT

82657, 82542

CDM Code

80101427, 80101471