Can the cpt code 84439 and cpt code 84443 be billed together?

CPT codes 84439 (Thyroid stimulating hormone) and 84443 (Thyroxine, total) can be billed together if both tests are medically necessary and ordered for the same patient encounter. However, it’s important to check for any specific payer guidelines or bundling edits that may apply, as some insurance companies may have restrictions on billing these codes together. Always ensure that appropriate documentation supports the medical necessity for both tests.