Posted Date
Effective Date
Test Name
Retinol Biding Protein
Update Type
Test Code Change
CPT Code
83883
Order Code
ARETB
NEW ARUP TEST CODES
Retinol Binding Protein
New Order code: ARETB
Fee Code: TBD (CPT 83883)
LOINC: 1836-6
Reference Lab: ARUP Laboratories (0050467)
Michigan Medicine Laboratories Sendout Lab will be launching a new interface with ARUP Laboratories effective February 3, 2026. The list of tests will be activated in a phased manner, beginning with Islet Cell Cytoplasmic Antibody, IgG, Mannose Binding Lectin, Myelin Basic Protein, Phosphatidylserine and Prothrombin IgG/IgM, P/Q-Type Calcium Channel Antibody, and Retinol Binding Protein. Please note that these are not new tests, just new test codes.