TAT 6 weeks CPT Code 81405 81408 81479 Test Code 2194 Test Methods Sequencing Deletion/Duplication analysis Specimen Types Accepted Blood Saliva Cultured Cells Extracted DNA Documents General Test Requisition Form Genes FBN1 SMAD2 SMAD3 TGFB2 TGFB3 TGFBR1 TGFBR2