6946: T3, FREE, DIALYSIS, LC/MS-MS
- T3, Free, Tracer Dialysis
- 1.0 mL
- Serum Or Plasma
- Serum Separator Tube, Plain Red Top Tube, Green Top Tube, Lavender Top Tube, Transfer Tube- Plasma, Transfer Tube- Serum
*The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.
- 1.0 mL SERUM OR PLASMA
- Serum/plasma must be separated from cells within 45 minutes of venipuncture. Send serum/plasma in a plastic transfer tube.