| Test Name (Click to sort by popular result) | COE Code |
| UGT1A1 Promoter Genotyping | MLABEL |
| Urea Nitrogen, Fluid | UREAF |
| Urea Nitrogen, Serum (BUN) | UN |
| Urea Nitrogen, Urine | UREAU/UREAQ |
| Ureaplasma urealyticum Culture | UREAPL |
| Uric Acid, Fluid | URICF |
| Uric Acid, Serum | URIC |
| Uric Acid, Urine | URICU/URICQ |
| Urinalysis | UA |
| Urine / Bladder / Ureteral / Renal Pelvic Cytology | CURINE/URU/BLW |
| Urine, AFB Culture | BAFB |
| Urine, Catheterized, Aerobic Culture | URCC |
| Urine, Clean Catch, Aerobic Culture | URCC |
| Urine, Suprapubic, Aerobic Culture | URS |
| Urine, Suprapubic, Anaerobe Culture | ANNC |
| Urine, Yeast Culture | FNSN |
| UroVysion(TM) FISH for Bladder Cancer | MLABEL |
| Urogenital, Aerobic Culture | UGG |
| Urogenital, Yeast Culture | FNSN |