Hi hdwyrick;
This is one of those CPT's I actually have stopped in my laboratory work queue to review because if multiple tests are ordered I need to make sure I add the necessary description of the test being done for each procedure prior to billing.
It is very common for me to see the IgA, IgG, and IgM done on the same DOS and I really want to secure reimbursement by identifying each laboratory test being done prior to billing the claim out.
I actually found that using the 59 or 91 modifier will still require a procedure comment or you will with little doubt have to appeal these with the laboratory results and documentation identifying each laboratory test that was done.
Hoping this helps,
Dana Chock, CPC, CCA, CANPC, CHONC, CPMA, CPB
Anesthesia, Pathology, & Laboratory Coder