Posted Date
Effective Date
Test Name
Interleukin-1 Beta, Serum
Update Type
Test Code Change
CPT Code
83520
Order Code
AI1S
NEW ARUP TEST CODES
Interleukin 1 beta, Serum
Order code: AIL1B
New Order Code: AI1S
Fee Code: AB189 (CPT 83520)
LOINC: 13629-1
Reference Lab: ARUP Laboratories (0051536)
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.