Wiki Billing for pre biopsy mammo and post biopsy mammo to check clip placement

[Kimberley]

When pt has a unilateral diagnostic mammogram before an ultrasonic guided bx and then has another unilateral diagnostic mammogram to verify clip placement are we to bill for both mammos? If so, what modifier should be added to the post bx mammo? I do know that you cannot bill for the post bx mammo if performed under stereotactic or mammo guidance.

Thank you in advance

Kimberley Tober, CPC

 

[Kimberley]

Any help on this question would be great appreciated