Posted Date
Effective Date
Test Name
Voltage-Gated Potassium Channel (VGKC) Antibody with reflex to LGI1 and CASPR2 Screen and Titer
Update Type
Test Code Change
CPT Code
83519
Order Code
AVGK
NEW ARUP TEST CODES
Voltage-Gated Potassium Channel (VGKC) Antibody with reflex to LGI1 and CASPR2 Screen and Titer
Order Code: AVGKC
New Order code: AVGK
Fee Code: AA320 (CPT 83519)
LOINC: 41871-5
Reference Lab: ARUP Laboratories (2009463)
Michigan Medicine Laboratories Sendout Lab launched a new interface with ARUP Laboratories effective February 3, 2026. The third phase group of tests are now live effective February 17, 2026; Donath Landsteiner, Interleukin 1 Beta, Serum, and Voltage-Gated Potassium Channel (VGKC) Antibody with reflex to LGI1 and CASPR2 Screen and Titer. Please note that these are not new tests, just new test codes.