CG-LAB-20 Thyroid Testing

This policy addresses thyroid function testing (e.g., TSH, free T4, and free/total T3). It is covered as medically necessary to evaluate signs or symptoms of thyroid disease, to evaluate/assess/monitor confirmed or suspected thyroid disease, or to assess thyroid function when risk factors are present; it is not covered when these criteria are not met, including routine screening without risk factors. Coverage is limited to clinically indicated testing, with TSH as the first-line test and additional T4/T3 testing as appropriate.

"Thyroid function testing is consideredmedically necessaryfor individuals who meet any of the following indications:"

Sign up to see full coverage criteria, indications, and limitations.