GGHCPCS Level II

Performance and payment of a screening mammogram and diagnostic mammogram on

Related modifiers

Frequently asked questions

What does modifier GG mean?

Performance and payment of a screening mammogram and diagnostic mammogram on

HCPCS modifier data from CMS. CPT® is a registered trademark of the American Medical Association — CPT modifier descriptions are not included on this site. Always verify codes with authoritative sources before making billing decisions.