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L493
L493 – Blood Group - ABO and Rh phenotype
OHIP Laboratory Medicine Code · Schedule of Benefits
Blood Group - ABO and Rh phenotype. Listed under 2.5 Immunohematology in the Schedule of Benefits for Laboratory Services (effective April 1, 2026). [Essential Specifications 26] d. L492 Crossmatch. When an initial crossmatch is requested, the appropriate claim is for L490 x 1, L482 x 1 plus L492 for each unit ordered. L490 and L482 may not be claimed more than once on the same day of service. L490 and L493 may not be claimed when these procedures are carried out as a confirmatory test on the units of blood to be transfused. e. L493. This code includes L490 [see Essential Specifications, paragraph 26(c)] and Rh phenotype as well as antigens C, D, E, c, e, and weak RhD phenotype when indicated. Any other antigen is to be claimed under L494. f. L494 Blood Group per antigen. Antigens stated in L490 and L493 are excluded from this code. g. L495 Direct AHGT - can be …
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