Procedure · Updated Aug 1, 2026
Thyroid test: CPT code and Medicare rate
A thyroid-stimulating hormone (TSH) blood test—the first-line screen for an underactive or overactive thyroid, and the standard way to monitor thyroid medication.
Also called: tsh, thyroid blood test, thyroid stimulating hormone test.
Usually billed as
84443 has no national Medicare amount in the Q4 2026 release. Its status is statutory exclusion, and what Medicare pays depends on the circumstances of the individual claim.
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Thyroid test: which code is it?
Thyroid test: how much does Medicare pay?
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Every code page carries the full locality breakdown, the RVU and GPCI inputs, and the release the numbers come from.
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This page maps everyday language to the code a claim normally carries. It's general information about how Medicare prices a service, not coding advice for a specific claim. The correct code always depends on what was actually documented and performed.
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