- Frambesioma 102.1
- Franceschetti's syndrome (mandibulofacial dysostosis) 756.0
- Francis' disease (see also Tularemia) 021.9
- Frank's essential thrombocytopenia (see also Purpura, thrombocytopenic) 287.39
- Franklin's disease (heavy chain) 273.2
- Fraser's syndrome 759.89
- Freckle 709.09
- Freeman-Sheldon syndrome 759.89
- Freezing 991.9
- Frei's disease (climatic bubo) 099.1
- Freiberg's
- Fremitus, friction, cardiac 785.3
- Frenulum linguae 750.0
- Frenum
- Frequency (urinary) NEC 788.41
- Frey's syndrome (auriculotemporal syndrome) 705.22
- Friction
- Friderichsen-Waterhouse syndrome or disease 036.3
- Friedländer's
- Friedreich's
- Friedrich-Erb-Arnold syndrome (acropachyderma) 757.39
- Frigidity 302.72