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  | Clap - see Gonorrhea | 
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  | Clarke-Hadfield syndrome (pancreatic infantilism) 577.8 | 
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  | Claude Bernard-Horner syndrome (see also Neuropathy, peripheral, autonomic) 337.9 | 
  | Claudication, intermittent 443.9 | 
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  | Claudicatio venosa intermittens 453.8 | 
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  | Clay shovelers' fracture - see Fracture, vertebra, cervical | 
  | Cleansing of artificial opening (see also Attention to artificial opening) V55.9 | 
  | Cleft (congenital) - see also Imperfect, closure | 
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  | Cleft hand (congenital) 755.58 | 
  | Cleidocranial dysostosis 755.59 | 
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  | Clérambault's syndrome 297.8 | 
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  | Clergyman's sore throat 784.49 | 
  | Click, clicking | 
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  | Clifford's syndrome (postmaturity) 766.22 | 
  | Climacteric (see also Menopause) 627.2 | 
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  | Clinical research investigation (control) (participant) V70.7 | 
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  | Clitoris - see condition | 
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  | Clonorchis infection, liver 121.1 | 
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  | Closed surgical procedure converted to open procedure | 
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  | Closure | 
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  | Clot (blood) | 
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  | Clotting defect NEC (see also Defect, coagulation) 286.9 | 
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  | Clouding | 
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  | Cloudy | 
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  | Clouston's (hidrotic) ectodermal dysplasia 757.31 | 
  | Clubbing of fingers 781.5 | 
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  | Clubnail (acquired) 703.8 | 
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