Withdrawing reaction, child or adolescent  313.22 | 
  Witts' anemia (achlorhydric anemia)  280.9 | 
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  Woakes' syndrome (ethmoiditis)  471.1 | 
  Wohlfart-Kugelberg-Welander disease  335.11 | 
  Woillez's disease (acute idiopathic pulmonary congestion)  518.5 | 
  Wolff-Parkinson-White syndrome (anomalous atrioventricular excitation)  426.7 | 
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  Wolman's disease (primary familial xanthomatosis)  272.7 | 
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  Woolly, wooly hair (congenital) (nevus)  757.4 | 
  Wool-sorters' disease  022.1 | 
  Word  | 
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  Worm(s) (colic) (fever) (infection) (infestation) (see also Infestation)  128.9 | 
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  Worn out (see also Exhaustion)  780.79 | 
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  Wound, open (by cutting or piercing instrument) (by firearms) (cut) (dissection) (incised) (laceration) (penetration) (perforating) (puncture) (with initial hemorrhage, not internal)  879.8 | 
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  Wright's syndrome (hyperabduction)  447.8 | 
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  Wringer injury - see Crush injury, by site  | 
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  Wrist - see also condition  | 
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  Wrong drug (given in error) NEC  977.9 | 
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  Wry neck - see also Torticollis  | 
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  Wuchereria infestation  125.0 | 
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  Wuchernde struma langhans (M8332/3)  193 | 
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  Xanthelasmatosis (essential)  272.2 | 
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  Xanthofibroma (M8831/0) - see Neoplasm, connective tissue, benign  | 
  Xanthoma(s), xanthomatosis  272.2 | 
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  Xerosis  | 
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  X-ray  | 
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