- One of the following modifiers must be reported with anesthesia
services in the first modifier field to indicate who performed the
anesthesia service:
Modifier Description AA Anesthesia services performed personally by anesthesiologist AD Medical supervision by a physician: more than four concurrent anesthesia procedures. QK Medically directed by a physician: two, three, or four concurrent procedures QY Anesthesiologist medically directs one CRNA QX CRNA service: with medical direction by a physician QZ CRNA service: without medical direction by a physician
The following modifiers can be reported in the 2nd position under appropriate circumstances in addition to one of the previous anesthesia modifiers:
Modifier | Description |
---|---|
QS | Monitored anesthesia care service |
23 |
Unusual anesthesia Note: When using modifier 23, appropriate documentation must be submitted with the claim. |
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