- Ultrasonic nebulizer, E0575
- Ultraviolet light therapy system, A4633, E0691-E0694
- Unclassified drug, J3490
- Unipuncture control system, dialysis, E1580
- Upper extremity addition, locking elbow, L6693
- Upper extremity fracture orthosis, L3980-L3999
- Upper limb prosthesis, L6000-L7499
- Urea, J3350
- Ureterostomy supplies, A4454-A4590
- Urethral suppository, Alprostadil, J0275
- Urinal, E0325, E0326
- Urinary
- catheter, A4338-A4346, A4351-A4353
- collection and retention (supplies), A4310-A4360
- tract implant, collagen, L8603
- tract implant, snythetic, L8606
- Urine
- sensitivity study, P7001
- system, K1006
- tests, A4250
- Urofollitropin, J3355
- Urokinase, J3364, J3365
- Ustekinumab, J3357, J3358
- U-V lens, V2755