- Ureterectasis 593.89
- Ureteritis 593.89
- Ureterocele (acquired) 593.89
- Ureterolith 592.1
- Ureterolithiasis 592.1
- Ureterostomy status V44.6
- Urethra, urethral - see condition
- Urethralgia 788.9
- Urethritis (abacterial) (acute) (allergic) (anterior) (chronic) (nonvenereal) (posterior) (recurrent) (simple) (subacute) (ulcerative) (undifferentiated) 597.80
- Urethro-oculoarticular syndrome 099.3
- Urethro-oculosynovial syndrome 099.3
- Urethrocele
- Urethrolithiasis 594.2
- Urethrorectal - see condition
- Urethrorrhagia 599.84
- Urethrorrhea 788.7
- Urethrostomy status V44.6
- Urethrotrigonitis 595.3
- Urethrovaginal - see condition
- Urhidrosis, uridrosis 705.89
- Uric acid
- Uricacidemia 790.6