Thyroxine, Free, Index, Serum or Plasma
MessageThis test is discontinued and obsolete. FT4 is an appropriate replacement test for patient evalatuion.
Test CodeFTI
CPT Codes 84436, 84479
Last Updated: July 16, 2024
The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only.
CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.
Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.