- Uronephrosis 593.89
- Uropathy 599.9
- Urosepsis 599.0
- Urticaria 708.9
- Urticarioides acarodermatitis 133.9
- Use of
- Usher-Senear disease (pemphigus erythematosus) 694.4
- Uta 085.5
- Uterine size-date discrepancy 646.8
- Uteromegaly 621.2
- Uterovaginal - see condition
- Uterovesical - see condition
- Uterus - see condition
- Utriculitis (utriculus prostaticus) 597.89
- Uveal - see condition
- Uveitis (anterior) (see also Iridocyclitis) 364.3
- Uveoencephalitis 363.22
- Uveokeratitis (see also Iridocyclitis) 364.3
- Uveoparotid fever 135
- Uveoparotitis 135
- Uvula - see condition
- Uvulitis (acute) (catarrhal) (chronic) (gangrenous) (membranous) (suppurative) (ulcerative) 528.3
