Flaccid - see also condition  | 
   | 
  Flail  | 
   | 
  Flajani (-Basedow) syndrome or disease (exophthalmic goiter)  242.0 | 
   | 
  Flare, anterior chamber (aqueous) (eye)  364.04 | 
  Flashback phenomena (drug) (hallucinogenic)  292.89 | 
  Flat  | 
   | 
  Flatau-Schilder disease  341.1 | 
  Flattening  | 
   | 
   | 
   | 
   | 
  Flax dressers' disease  504 | 
  Flea bite - see Injury, superficial, by site  | 
  Fleischer (-Kayser) ring (corneal pigmentation)  275.1 [371.14]  | 
  Fleischner's disease  732.3 | 
   | 
  Flexibilitas cerea (see also Catalepsy)  300.11 | 
  Flexion  | 
   | 
  Flexner's  | 
   | 
  Flexner-Boyd dysentery  004.2 | 
  Flexure - see condition  | 
   | 
  Floating  | 
   | 
   | 
  Floor - see condition  | 
  Floppy  | 
   | 
  Flu - see also Influenza  | 
   | 
  Fluctuating blood pressure  796.4 | 
  Fluid  | 
   | 
  Flukes NEC (see also Infestation, fluke)  121.9 | 
   | 
  Fluor (albus) (vaginalis)  623.5 | 
   | 
  Fluorosis (dental) (chronic)  520.3 | 
   | 
   | 
   | 
  Flutter  | 
   | 
  Flux (bloody) (serosanguineous)  009.0 | 
  Focal - see condition  | 
  Fochier's abscess - see Abscess, by site  | 
  Focus, Assmann's (see also Tuberculosis)  011.0 | 
   | 
  Foix-Alajouanine syndrome  336.1 | 
  Folds, anomalous - see also Anomaly, specified type NEC  | 
   | 
   | 
  Follicle  | 
   | 
  Folliclis (primary) (see also Tuberculosis)  017.0 | 
  Follicular - see also condition  | 
   | 
   | 
   | 
  Folliculosis, conjunctival  372.02 | 
  Føllling's disease (phenylketonuria)  270.1 | 
  Follow-up (examination) (routine) (following)  V67.9 | 
   | 
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