| SURS | solitary ulcer of rectum syndrome; surveillance and utilization review |
|---|---|
| UIS | Utilization Information Service |
| UM | movement unsharpness; upper motor [neuron]; uracil mustard; utilization management |
| UR | unconditioned reflex; upper respiratory; uridine; urinal; urology; utilization review |
| URAC | Utilization Review Accreditation Commission |