If patient's critical care and visit satisfies time regs, 99291 is the better bet. The answer's yes more often than you might think, says Caral Edelberg, CPC, CPMA, CCS-P, CHC, president of Edelberg Compliance Associates in Baton Rouge, La. "Many patients who qualify for the caveat may also be candidates for critical care. If the condition is severe enough that the patient's ability to provide this information is impaired, then the condition may be critical," she explains. Critical Care Omits Specific History Component Considering critical care and the caveat simultaneously can make your head spin, as the ED caveat does not even apply to 99291 (Critical care, evaluation and management of the critical ill or critically injured patient; first 30-74 minutes) or +99292 (... each additional 30 minutes [List separately in addition to code for primary service]). Why? "There are not the same bullet-counting requirements for documentation of history, physical examination, or MDM [medical decision making] for critical care," explains Edelberg. The descriptors for critical care concern only E/M of the critically ill or injured patient. So when your physician invokes the ED caveat for a patient, check to see if the patient was critically ill or injured; if she was, and the physician documents at least 30 minutes of critical care, consider 99291. Payout: The 99285 code pays about $171 nationally (4.74 transitioned facility relative value units [RVUs] multiplied by the temporary 2010 Medicare conversion rate of 36.0846), whereas 99291 garners about $217 (5.99 RVUs multiplied by 36.0846). Check Out This Critical Caveat Scenario We asked Michael Lemanski MD, ED billing director at Baystate Medical Center in Springfield, Mass., to describe a scenario in which the physician provides critical care to a patient who also qualifies for the ED caveat: Emergency medical services (EMS) presents with two teenage girls that were involved in a high-speed motor vehicle crash with roll-over. One of the girls has been extricated, has a traumatic amputation of her left arm, and lost vital signs en route to the ED. The other has a head injury, is hypotensive, and appears too intoxicated to provide any history for either patient. The girl who lost vitals en route is clearly critically injured, but the only history available to the physician is when the collision occurred, where, and how. Details about past medical history, social history, family history and review of systems (ROS) are unavailable. The physician spends a total of 64 minutes providing critical care services for the patient. Caveat achieved, but ...: