Question: If a patient takes a fall in our office and requires critical care management prior to the ambulance coming, can I bill a critical care code for that? Florida Subscriber Answer: Yes, you can use 99291 (Critical care,evaluation and management of the critically ill or critically injured patient; first 30-74 minutes) with place of service code 11 (Office) provided the service meets the following criteria: " Your physician spends at least 30 minutes working on that patients critical condition. " The total critical care time must be face-to-face. " You do not include procedure time to meet the critical care time threshold.