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CSF for Prion Markers (RT QulC, 14-3-3, and Total Tau)

Test Code
3040002628


Alias/See Also
1233100050


CPT Codes
83520 84394 0035U

Includes
RT-QUL-C, CSF (NATIONAL PRION)
T-TAU PROTEIN, CSF (NATIONAL PRION)
14-3-3 GAMMA, CSF (NATIONAL PRION)


Preferred Specimen
Sterile container


Instructions
Collect CSF by lumbar puncture. Discard first 2 mL that flows from tap. Collect next 5 mL CSF, avoiding bloody tap. Ship using a styrofoam container with sufficient dry ice (5 lbs/24 hours). The NPDPSC requests a urine sample for research purposes with all CSF samples if available.


Transport Temperature
Frozen


Specimen Stability
Client Transport Temperature: Frozen Specimen Stability: Freeze within 20 minutes of collection. Store and transport frozen. Ship using a styrofoam container with sufficient dry ice (5 lbs/24 hours). The NPDPSC requests a urine sample for research purposes with all CSF samples if available.


Reference Range
SEE RESULT REPORT


Performing Laboratory
National Prion Disease Pathology Surveillance Center


Last Updated: August 26, 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.