• Chromaffinoma (M8700/0) - see also Neoplasm, by site, benign
  • Chromatopsia 368.59
  • Chromhidrosis, chromidrosis 705.89
  • Chromoblastomycosis 117.2
  • Chromomycosis 117.2
  • Chromophytosis 111.0
  • Chromotrichomycosis 111.8
  • Chronic - see condition
  • Churg-Strauss syndrome 446.4
  • Chyle cyst, mesentery 457.8
  • Chylocele (nonfilarial) 457.8
  • Chylomicronemia (fasting) (with hyperprebetalipoproteinemia) 272.3
  • Chylopericardium (acute) 420.90
  • Chylothorax (nonfilarial) 457.8
  • Chylous
  • Chyluria 791.1
  • Cicatricial (deformity) - see Cicatrix
  • Cicatrix (adherent) (contracted) (painful) (vicious) 709.2
  • CIDP (chronic inflammatory demyelinating polyneuropathy) 357.81
  • CIN I (cervical intraepithelial neoplasia I) 622.11
  • CIN II (cervical intraepithelial neoplasia II) 622.12
  • CIN III (cervical intraepithelial neoplasia III) 233.1