CPT® Code 95250

Ambulatory continuous glucose monitoring of interstitial tissue fluid via a subcutaneous sensor for a minimum of 72 hours; physician or other qualified health care professional (office) provided equipment, sensor placement, hook-up, calibration of monitor, patient training, removal of sensor, and printout of recording

Continuous ambulatory glucose monitoring (CAGM) is a procedure that involves the use of a subcutaneous sensor to measure glucose levels in interstitial tissue fluid over an extended period, specifically for a minimum duration of 72 hours. This method provides a comprehensive view of glucose trends throughout the day, offering insights that are not available through traditional self-monitoring techniques, which typically rely on isolated blood glucose measurements. The procedure begins with the placement of a temporary sensor beneath the skin, which is secured with a small plastic disc to ensure stability. This sensor is connected to a monitor that records glucose levels at regular intervals, typically every five minutes. The continuous data collection allows for real-time monitoring of glucose fluctuations, which can be particularly beneficial for patients managing diabetes. After the monitoring period, the sensor is removed, and the recorded data is downloaded for analysis by a physician or qualified healthcare professional. This process not only aids in understanding the patient's glucose patterns but also assists in making informed decisions regarding insulin therapy and other diabetes management strategies. The comprehensive nature of this monitoring technique underscores its importance in providing a detailed assessment of a patient's glycemic control.