The American Medical Association has come up with Category II codes that Medicare can accept in place of "G" codes in the Physician Voluntary Reporting Program.
You can use 3046F-3049F, 3076F-3077F, or 4006F, 4009F in place of "G" codes to report measures relating to beta blocker use and ACE inhibitor or ARB therapy for heart-attack patients--and for hemoglobin level testing and cholesterol testing for diabetic patients
Medicare unveiled three new "exclusion" modifiers, which you can use with these Category II codes to signify that a patient wasn't eligible for a particular intervention or test: 1P, 2P and 3P. You attach these modifiers to the codes above to explain why they didn't apply in a particular case.