A: Breast tomosynthesis performed in conjunction with digital mammography is appropriately reported with the unlisted diagnostic procedure code 76499 to describe breast tomosynthesis and one of the HCPCS Level II “G” codes (G0202, G0204, or G0206) to describe the full-field digital mammography performed. If computer-aided detection (CAD) also is performed, it should be reported separately using one of the mammography CAD codes, 77051 (CAD performed in conjunction with diagnostic mammography) or 77052 (CAD performed in conjunction with screening mammography). It is not appropriate to report a three-dimensional reconstruction code in conjunction with the full-field digital mammography code.