CPT® Code 70551

Magnetic resonance imaging (MRI) of the brain, specifically coded as CPT® 70551, is a sophisticated imaging technique that utilizes the magnetic properties of hydrogen atoms present in the body to create detailed images of the brain and brain stem. This noninvasive procedure does not involve the use of ionizing radiation, making it a safer alternative for patients requiring diagnostic imaging. During the MRI process, the patient is positioned on a motorized table that slides into a large cylindrical scanner, which houses a powerful magnet. The magnetic field generated by the scanner aligns the hydrogen atoms in the body. Subsequently, radiowaves are transmitted into this magnetic field, causing the protons in the hydrogen nuclei of various tissues to emit specific radiofrequency signals. These signals are captured and processed by a computer, which constructs high-resolution, three-dimensional images of the brain. MRI of the brain is instrumental in diagnosing a wide range of neurological conditions. It provides critical information regarding the presence, location, and extent of various abnormalities, including tumors, cysts, and other masses. Additionally, it is effective in identifying swelling, infections, vascular disorders such as aneurysms and intracranial hemorrhages, and diseases affecting the pituitary gland. The procedure is also valuable in assessing strokes, developmental and structural anomalies of the brain, hydrocephalus, and chronic conditions impacting the central nervous system, including headaches and multiple sclerosis. When the MRI is performed without the use of intravenous contrast material, the appropriate code to report is 70551. In cases where contrast dye, such as gadolinium, is administered prior to imaging, the correct code is 70552. If the MRI is initially conducted without contrast and additional images are obtained after the administration of contrast, the code 70553 should be used. Following the procedure, the physician reviews the MRI results, identifies any abnormalities, and provides a comprehensive written interpretation of the findings.