- Fauchard's disease (periodontitis) 523.40
- Faucitis 478.29
- Faulty - see also condition
- Favism (anemia) 282.2
- Favre-Racouchot disease (elastoidosis cutanea nodularis) 701.8
- Favus 110.9
- Fear, fearfulness (complex) (reaction) 300.20
- Feared complaint unfounded V65.5
- Febricula (continued) (simple) (see also Pyrexia) 780.60
- Febrile (see also Pyrexia) 780.60
- Febris (see also Fever) 780.60
- Fecal - see condition
- Fecalith (impaction) 560.32
- Fede's disease 529.0
- Feeble rapid pulse due to shock following injury 958.4
- Feeble-minded 317
- Feeding
- Feeling of foreign body in throat 784.99
- Feer's disease 985.0
- Feet - see condition
- Feigned illness V65.2
- Feil-Klippel syndrome (brevicollis) 756.16
