Posted Date
Effective Date
Test Name
Thyroid Stimulating Hormone
Update Type
Miscellaneous
CPT Code
84443
Order Code
TSH
REAGENT FORMULATION CHANGE
Thyroid Stimulating Hormone (TSH)
Order Code: TSH
Fee Code: 32022 (CPT 84443)
The MLabs Chemistry Laboratory will employ a new formulation of reagent for the Thyroid Stimulating Hormone (TSH) assay effective October 8, 2024. The new formulation provides improved ability to detect TSH in a wide array of populations dispersed globally (improved detection of TSH variants identified in SE Asia that can cause falsely low results). There will be no change to specimen collection and handling, reference ranges, or billing.