Important announcements regarding changes to test methodologies, reference ranges, CPT coding, new available assays or discontinued assays are reported to our clients weekly via MLabs Test Updates.  The following Test Update files, which contain information that is current when produced, may be printed for client use. However, information contained is subject to change over time. For more information or questions, please contact Customer Service at 800-862-7284.

TitlePosted DateEffective DateTest NameCPT CodeUpdate Type
Test Update 782Myasthenia Gravis Evaluation, Lambert-Eaton Syndrome83519 x2 Test Down or Delayed
Test Update 782MuSK Antibody83519 Test Down or Delayed
Test Update 781Testosterone, Total and Free84402, 84403 Test Resumed
Test Update 78082163 Test Down or Delayed
Test Update 780Testosterone, Total and Free84402, 84403 Test Down or Delayed
Test Update 780Inhibin B, Serum83520 Reference range changed
Test Update 779Iodine, Urine, Random (Iodine/Creatinine Ratio)83789, 82570 Replacement Test
Test Update 779Aluminum, Serum82108 Reference range changed
Test Update 779Hemoglobin Fractionation83021 Specimen collection or handling and/or storage changed
Test Update 778POLE Mutation81479, 88381 New Tests
Test Update 778Myeloid NGS Panel81450 Specimen collection or handling and/or storage changed
Test Update 77887529 x2 Test Down or Delayed
Test Update 777CNS Demyelinating Disease Evaluation86255 x 2, Reflex 86256 x 2 Test Down or Delayed
Test Update 777TB Gold, QuantiFERON86481 Test Methodology Changed
Test Update 777Point of Care- SARS-CoV-2 (COVID-19)/ Influenza (A,B)/ RSV by PCR, GeneXpert87637 New Tests
Test Update 777Lead Profile Occupational Exposure83655, 84202 Replacement Test
Test Update 776Helicobacter pylori Urea Breath Test83013 Test Methodology Changed
Test Update 776Hemophilus influenzae B Antibody, IgG86684 Replacement Test
Test Update 775Inhibin A and B, Tumor Marker83520 Specimen collection or handling and/or storage changed
Test Update 775Inhibin B, Serum83520 Specimen collection or handling and/or storage changed
Test Update 775Cytogenetics, Chromosomal Microarray Analysis, Tumor81277 New Tests
Test Update 774Myasthenia Gravis Evaluation with MuSK Reflex83519, 86255 Test Down or Delayed
Test Update 77483519 x5, 83520 86255 x9 with reflexes Test Down or Delayed
Test Update 774Lead, Blood83655 Reference range changed
Test Update 774Supersaturation Profile, 24 Hour, Urine82340, 82436, 82507, 82570, 83735, 83935, 83945, 83986, 84105, 84133, 84300, 84392, 84560, 82140, 84540 Test Down or Delayed
Test Update 774Myasthenia Gravis Evaluation, Lambert-Eaton Syndrome83519 x4, 83520 Test Down or Delayed
Test Update 774Valproic Acid80164 Reference range changed
Test Update 774Prostate Specific Antigen, Free and Total84153 Total, 84154 Free Specimen collection or handling and/or storage changed
Test Update 774Complement, Total Hemolytic (CH50)86162 Specimen collection or handling and/or storage changed
Test Update 744Valproic Acid, Protein Free80165 Reference range changed