• Clastothrix 704.2
  • Claude Bernard-Horner syndrome (see also Neuropathy, peripheral, autonomic) 337.9
  • Claude's syndrome 352.6
  • Claudicatio venosa intermittens 453.8
  • Claudication, intermittent 443.9
  • Claustrophobia 300.29
  • Clavus (infected) 700
  • Clawfoot (congenital) 754.71
  • Clawhand (acquired) 736.06
  • Clawtoe (congenital) 754.71
  • Clay eating 307.52
  • 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
  • Cleft hand (congenital) 755.58
  • Cleidocranial dysostosis 755.59
  • Cleidotomy, fetal 763.89
  • Cleptomania 312.32
  • Clérambault's syndrome 297.8
  • Clergyman's sore throat 784.49
  • Click, clicking
  • Clifford's syndrome (postmaturity) 766.22