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TSH (Thyrotropin)

Test Code: 30055

Cpt Code:

84443 (x1)

Clinical Utility

For the quantitative measurement of thyrotropin (TSH) in serum, as an aid in the clinical assessment of thyroid status.


The thyroid stimulating hormone assay is performed on the Immulite 2000 analyzer system using beads coated with a mouse anti-thyroid stimulating hormone. The assay is calibrated against WHO 2nd IRP 80/558. This test has been cleared or approved for diagnostic use by the U.S. Food and Drug Administration.

Assay Range

0.01-75 mcIU/mL

Turnaround Time

Setup: M-W-F. TAT 3-5 business days from receipt of specimen

Specimen Information


1 mL, Serum, Ambient, no special shipping requirements.

5 days refrigerated, 1 month frozen


Specimens are approved for testing in New York only when indicated in the Specimen Information field above.

The CPT codes provided are based on Viracor-IBT's interpretation of the American Medical Association's Current Procedural Terminology (CPT) codes and are provided for general informational purposes only. CPT coding is the sole responsibility of the billing party. Questions regarding coding should be addressed to your local Medicare carrier. Viracor-IBT assumes no responsibility for billing errors due to reliance on the CPT codes illustrated in this material.

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