NCCT KUB stands for Non-Contrast Computed Tomography of the Kidneys, Ureters, and Bladder. It is a diagnostic imaging technique that uses X-rays to create detailed cross-sectional images of the kidneys, ureters, and bladder. NCCT KUB is primarily used to evaluate the urinary system and diagnose various conditions, such as kidney stones, urinary tract infections, kidney cysts, tumors, and other abnormalities.