PHENYTOIN LEVEL, TOTAL

Message
Collect a full tube, following standard venipuncture techniques.


Test Code
LAB31 DIL


Alias/See Also
DIL


CPT Codes
80185

Instructions
Processing Instructions (Lab use only): Centrifuge and separate cells after clot formation and within 1 hour of collection. Minimum Testing Volume: 0.5 mL Serum Transport Temperature: Refrigerated Stability: Ambient: 2 daysRefrigerated (Off Clot): 8 daysFrozen: 5 Months Causes for Rejection: Unlabeled, mislabeled, wrong tube type, QNS, grossly hemolyzed.


Clinical Significance
1230130014



Last Updated: May 18, 2026


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.