Anesthesia Coding Practice Test

The main idea is that the AA modifier is used only when the anesthesia service is provided personally by the anesthesiologist. To support this modifier, the medical record should clearly show that the anesthesiologist performed the anesthesia themselves—not just supervised or assisted by nonphysician staff. Documentation should name the anesthesiologist and indicate that they administered the anesthesia, with the times and the provider’s responsibility explicitly stated. This direct attribution is what distinguishes AA from other scenarios where anesthesia might be delivered by a nurse anesthetist or under supervision. Details like patient consent or whether the case used MAC are not what justify AA. Similarly, noting that a non-physician performed anesthesia would not support AA, since the modifier requires physician-performed service. In short, the best documentation is explicit language and records showing the anesthesiologist personally administered the anesthesia.