• Rubeola (measles) (see also Measles) 055.9
  • Rubeosis iridis 364.42
  • Rubinstein-Taybi's syndrome (brachydactylia, short stature and mental retardation) 759.89
  • Rud's syndrome (mental deficiency, epilepsy, and infantilism) 759.89
  • Rudimentary (congenital) - see also Agenesis
  • Ruiter-Pompen (-Wyers) syndrome (angiokeratoma corporis diffusum) 272.7
  • Ruled out condition (see also Observation, suspected) V71.9
  • Rumination - see also Vomiting
  • Runaway reaction - see also Disturbance, conduct
  • Runeberg's disease (progressive pernicious anemia) 281.0
  • Runge's syndrome (postmaturity) 766.22
  • Runny nose 784.99
  • Rupia 091.3
  • Rupture, ruptured 553.9
  • Russell (-Silver) syndrome (congenital hemihypertrophy and short stature) 759.89
  • Russell's dwarf (uterine dwarfism and craniofacial dysostosis) 759.89
  • Russell's dysentery 004.8
  • Russian spring-summer type encephalitis 063.0
  • Rust's disease (tuberculous spondylitis) 015.0 [720.81]
  • Rustitskii's disease (multiple myeloma) (M9730/3) 203.0
  • Ruysch's disease (Hirschsprung's disease) 751.3
  • Rytand-Lipsitch syndrome (complete atrioventricular block) 426.0