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Pathology/Lab Coding Alert

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Build Vitamin B12 Testing Glossary

Published on Wed Feb 09, 2022

Question: The lab receives an order for serum transcobalamin and performs a radiobinding assay. Should we use an unlisted chemistry code for this test? Washington Subscriber Answer: No, you should not use the unlisted chemistry code 84999 (Unlisted chemistry procedure) for this test. Transcobalamin (TC) is the transport protein that binds vitamin B12 (Cyanocobalamin) in the blood and allows cellular uptake. Another [...]
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