Below is a list summarizing the CPT codes for tissue typing immunological procedures. CPT Code 86805 CPT 86805 describes a lymphocytotoxicity assay, visual crossmatch with titration. CPT Code 86806 CPT 86806 describes a lymphocytotoxicity assay, visual crossmatch without titration. CPT Code 86807 CPT 86807 describes serum screening for cytotoxic percent reactive antibody (PRA) with a…