MRI—scan to evaluate small bowel Crohn’s disease if the service is provided to a patient for: (a) evaluation of disease extent at time of initial diagnosis of Crohn’s disease; or(b) evaluation of exacerbation, or suspected complications, of known Crohn’s disease; or(c) evaluation of known or suspected Crohn’s disease in pregnancy; or(d) assessment of change to therapy in a patient with small bowel Crohn’s disease (R) (Contrast)