Question: I’m new to pulmonology, and I received a critical care report from the physician that lists several services separately. Some of the services include pulse oximetry, chest X-rays, ventilator management, and gastric intubation — does each procedure need to be billed individually? Michigan Subscriber Answer: In the CPT® manual, the introduction for critical care services specifies several services that are bundled into 99291 (Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes). You should not report these services separately, as they are considered essential to critical care. The services bundled into 99291 include: Additionally, you will need to report any services that aren’t bundled into critical care services that your physician performs separately. Note: The CPT® manual states that facilities can report these services separately.