Final answer:
Critical care services provided for a duration of 1 hour and 45 minutes in the ED would be appropriately billed using E/M codes 99291 for the first hour and 99292 for the next 30 minutes. The correct answer is D. 99291, 99292.
Step-by-step explanation:
The student is asking how to code for critical care services provided in an Emergency Department (ED) for a total duration of 1 hour and 45 minutes. The appropriate Evaluation and Management (E/M) codes to use in this scenario would be: 99291 and 99292. Code 99291 represents the first hour of critical care, and code 99292 is used for each additional 30 minutes of critical care provided. Because the patient received 1 hour and 45 minutes of care, you would bill one unit of 99291 (first hour) plus one unit of 99292 (next 30 minutes). Any remaining time below 30 minutes is non-billable as a separate code. Therefore, the correct answer would be D. 99291, 99292.