CPT® Code 99155

Moderate sedation services provided by a physician or other qualified health care professional other than the physician or other qualified health care professional performing the diagnostic or therapeutic service that the sedation supports; initial 15 minutes of intraservice time, patient younger than 5 years of age

Moderate sedation services refer to the administration of sedative agents to a patient to facilitate a diagnostic or therapeutic procedure while ensuring the patient remains in a state of controlled consciousness. This specific CPT® code, 99155, is utilized when these services are provided to a patient younger than 5 years of age. The sedation is administered by a physician or another qualified healthcare professional who is not the one performing the actual procedure that necessitates sedation. The process begins with a thorough patient assessment to evaluate the patient's medical history and current health status. An intravenous (IV) line is then established to allow for the administration of fluids and sedative medications as required. Throughout the procedure, the patient's level of consciousness and vital signs—including oxygen saturation, heart rate, and blood pressure—are closely monitored to ensure safety and effectiveness. After the procedure is completed, the healthcare professional continues to observe the patient until they have sufficiently recovered from the effects of the sedation, at which point the patient can be safely handed over to nursing staff for ongoing care. This code specifically accounts for the initial 15 minutes of intraservice time dedicated to providing moderate sedation for young patients.