| Collodion baby (ichthyosis congenita) 757.1 | 
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  | Coloenteritis - see Enteritis | 
  | Colon - see condition | 
  | Colonization | 
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  | Color | 
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  | Colostomy | 
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  | Colpitis (see also Vaginitis) 616.10 | 
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  | Colpocystitis (see also Vaginitis) 616.10 | 
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  | Column, spinal, vertebral - see condition | 
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  | Combat fatigue (see also Reaction, stress, acute) 308.9 | 
  | Combined - see condition | 
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  | Comedocarcinoma (M8501/3) - see also Neoplasm, breast, malignant | 
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  | Comma bacillus, carrier (suspected) of V02.3 | 
  | Comminuted fracture - see Fracture, by site | 
  | Common | 
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  | Commotio (current) | 
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  | Commotion (current) | 
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  | Communication | 
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  | Compartment syndrome - see Syndrome, compartment | 
  | Compensation | 
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  | Complaint - see also Disease | 
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  | Complete - see condition | 
  | Complex | 
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  | Complications | 
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  | Compound presentation, complicating delivery 652.8 | 
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  | Compressed air disease 993.3 | 
  | Compression | 
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  | Compulsion, compulsive | 
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  | Concato's disease (pericardial polyserositis) 423.2 | 
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  | Concavity, chest wall 738.3 | 
  | Concealed | 
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  | Concern (normal) about sick person in family V61.49 | 
  | Concrescence (teeth) 520.2 | 
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  | Concretion - see also Calculus | 
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  | Concussion (current) 850.9 | 
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  | Condition - see also Disease | 
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  | Conduct disturbance (see also Disturbance, conduct) 312.9 | 
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