I don't know if this helps, but here's what I found:
"Postprocedure mammograms
Medicare's policy on post-procedure mammography has changed yearly since 2013 -- from not allowing it at all, to allowing it with stereotactic, ultrasound, and MR-guided procedures; and then to allowing it only with ultrasound and procedures guided by MRI. The 2016 NCCI Policy Manual has reverted back to the 2014 policy statement that allows separate coding of a postprocedure mammogram with all but the mammogram-guided localization.
Chapter 9 of the policy manual includes the following statement:
11. If a breast biopsy, needle localization wire, metallic localization clip, or other breast procedure is performed with mammographic guidance (e.g., 19281, 19282), the physician should not separately report a postprocedure mammography code (e.g., 77051, 77052, 77055-77057, G0202-G0206) for the same patient encounter. The radiologic guidance codes include all imaging by the defined modality required to perform the procedure."