What CPT® code should be used for a critical care service lasting 30 minutes?

For a critical care service lasting 30 minutes, the appropriate CPT® code is 99291. This code is specifically designated for the first 30 to 74 minutes of critical care provided to a patient. Critical care services involve the direct provision of care for critically ill patients requiring the constant attention of a healthcare professional.

CPT® code 99291 encompasses situations where the intensity of service is necessary to stabilize a patient suffering from severe conditions that would typically lead to imminent danger, such as respiratory failure, shock, or severe trauma. It encompasses actions such as monitoring vital signs, administering medications, and performing procedures vital to the patient’s immediate health.

The other codes listed relate to different types of evaluation and management services or levels of care. For instance, code 99292 is used for additional time spent in critical care beyond the initial 30 minutes, while codes 99285 and 99284 pertain to emergency department services, but do not apply to the specific context of critical care management or time spent. Thus, 99291 is the correct choice when the critical care service sessions are 30 minutes long.