- Rabbia 071
- Rabbit fever (see also Tularemia) 021.9
- Rabies 071
- Rachischisis (see also Spina bifida) 741.9
- Rachitic - see also condition
- Rachitis, rachitism - see also Rickets
- Racket nail 757.5
- Radial nerve - see condition
- Radiation effects or sickness - see also Effect, adverse, radiation
- Radiculitis (pressure) (vertebrogenic) 729.2
- Radiculomyelitis 357.0
- Radiculopathy (see also Radiculitis) 729.2
- Radioactive substances, adverse effect - see Effect, adverse, radioactive substance
- Radiodermal burns (acute) (chronic) (occupational) - see Burn, by site
- Radiodermatitis 692.82
- Radionecrosis - see Effect, adverse, radiation
- Radiotherapy session V58.0
- Radium, adverse effect - see Effect, adverse, radioactive substance
- Raeder-Harbitz syndrome (pulseless disease) 446.7
- Rag sorters' disease 022.1
- Rage (see also Disturbance, conduct) 312.0
- Raillietiniasis 123.8
