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coding anesthesia for AA directing CRNA's


Brooklyn, NY
Best answers
My question is that is it correct to use the QK and the QY modifier for
Medicare on the same procedure when there is a CRNA also billing?
(ie.) The AA bills 00840 -QK,QY, GC and the
CRNA bills 00840 -QX,GC

I think that the QK modifier is indicating that the AA is overseeing 2 or more
cases and that the QY modifier is indicating that he is only overseeing 1 CRNA case at the same time. Too me it seems that the modifiers are conflicting. Can you help me understand this?
Last edited:


Sutherland Springs, TX
Best answers
If the anesthesiologist medically directed the CRNA and only that one CRNA, you will use a QY for the anesthesiologist and a QX for the CRNA.
If the anesthesiologist is medically directing more than one CRNA, you would then use a QK for the anesthesiologist and a QX for the CRNA
If the CRNA was not medically directed at all, you would then use the QZ modifier indicating the service was without medical direction by a physician.

I hope this helps.