Interception of pregnancy (menstrual extraction)  V25.3 | 
  Interference  | 
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  Intermenstrual  | 
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  Intermittent - see condition  | 
  Internal - see condition  | 
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  Interruption  | 
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  Interstitial - see condition  | 
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  Intervertebral disc - see condition  | 
  Intestine, intestinal - see also condition  | 
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  Intolerance  | 
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  Intoxicated NEC (see also Alcoholism)  305.0 | 
  Intoxication  | 
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  Intracranial - see condition  | 
  Intrahepatic gallbladder  751.69 | 
  Intraligamentous - see also condition  | 
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  Intraocular - see also condition  | 
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  Intrathoracic - see also condition  | 
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  Intrauterine contraceptive device  | 
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  Intraventricular - see condition  | 
  Intrinsic deformity - see Deformity  | 
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  Intrusion, repetitive, of sleep (due to environmental disturbances) (with atypical polysomnographic features)  307.48 | 
  Intumescent, lens (eye) NEC  366.9 | 
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  Intussusception (colon) (enteric) (intestine) (rectum)  560.0 | 
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  Invagination  | 
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  Inversion  | 
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  Investigation  | 
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  Inviability - see Immaturity  | 
  Involuntary movement, abnormal  781.0 | 
  Involution, involutional - see also condition  | 
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  IQ  | 
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  Iridochoroiditis (panuveitis)  360.12 | 
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  Iridocyclochoroiditis (panuveitis)  360.12 | 
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  Iridoplegia (complete) (partial) (reflex)  379.49 | 
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  Iris - see condition  | 
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  Iron  | 
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