Posted Date
Effective Date
Update Type
New Tests
CPT Code
83525, 83527
Order Code
INSFT
NEW TEST
Insulin, Free and Total
Order Code: INSFT
Fee Code: AB233, AB234 (CPT 83525. 83527)
LOINC: 48615-9
Reference Lab: Mayo INSFT
Effective April 9, 2026, Michigan Medicine Laboratories Sendout Lab is offering a new test, Insulin, Free and Total, that will be performed by Mayo Clinic Laboratories. MLabs also offers an in-house Insulin assay (order code INS) if applicable.
Collection Instructions: Fasting: 8 hours required; for 12 hours prior to collection, do not take any supplements containing vitamin B7.
Collect specimen in an SST or red top tube. Spin and aliquot within 2 hours of collection. Send to Specimen Processing refrigerated.