will not cover anesthesiologist supervision of more than four concurrent
procedures. Modifier AD will result in denial.
QK and QY
describe anesthesiologist supervision of a CRNA performing anesthesia services.
These modifiers pay at a reduced rate.
CRNA services that are supervised by an anesthesiologist. This modifier pays at
a reduced rate.
QS, QZ, G8, and G9 do not influence payment.
P2, and P6 do not influence payment. Modifier P3 adds one unit, modifier P4
adds two units, and modifier P5 adds three units.