• Rollet's chancre (syphilitic) 091.0
  • Rolling of head 781.0
  • Romano-Ward syndrome (prolonged QT interval syndrome) 426.82
  • Romanus lesion 720.1
  • Romberg's disease or syndrome 349.89
  • Roof, mouth - see condition
  • Rosacea 695.3
  • Rosary, rachitic 268.0
  • Rose
  • Rosen-Castleman-Liebow syndrome (pulmonary proteinosis) 516.0
  • Rosenbach's erysipelatoid or erysipeloid 027.1
  • Rosenthal's disease (factor XI deficiency) 286.2
  • Roseola 057.8
  • Ross river fever 066.3
  • Rossbach's disease (hyperchlorhydria) 536.8
  • Rossle-Urbach-Wiethe lipoproteinosis 272.8
  • Rostan's asthma (cardiac) (see also Failure, ventricular, left) 428.1
  • Rot
  • Rot-Bernhardt disease 355.1
  • Rotation
  • Röteln 056.9
  • Roth's disease or meralgia 355.1