Amaurosis (acquired) (congenital) (see also Blindness)  369.00 | 
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  Amaurotic familial idiocy (infantile) (juvenile) (late)  330.1 | 
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  Amblyopia (acquired) (congenital) (partial)  368.00 | 
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  Ameba, amebic (histolytica) - see also Amebiasis  | 
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  Ameloblastoma (M9310/0)  213.1 | 
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  Amelogenesis imperfecta  520.5 | 
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  Amenorrhea (primary) (secondary)  626.0 | 
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  Amentia (see also Retardation, mental)  319 | 
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  American  | 
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  Ametropia (see also Disorder, accommodation)  367.9 | 
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  Amino acid  | 
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  Amnestic (confabulatory) syndrome  294.0 | 
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  Amniocentesis screening (for)  V28.2 | 
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  Amnion, amniotic - see also condition  | 
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  Amnionitis (complicating pregnancy)  658.4 | 
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  Amotio retinae (see also Detachment, retina)  361.9 | 
  Ampulla  | 
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  Amputation  | 
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  Amputee (bilateral) (old) - see also Absence, by site, acquired  V49.70 | 
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  Amygdalitis - see Tonsillitis  | 
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  Amyloid disease or degeneration  277.30 | 
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  Amyloidosis (familial) (general) (generalized) (genetic) (primary)  277.30 | 
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  Amylopectinosis (brancher enzyme deficiency)  271.0 | 
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  Amyotrophia, amyotrophy, amyotrophic  728.2 | 
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  Analgesia (see also Anesthesia)  782.0 | 
  Analphalipoproteinemia  272.5 | 
  Anaphylactic shock or reaction (correct substance properly administered)  995.0 | 
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  Anaphylactoid shock or reaction - see Anaphylactic shock  | 
  Anaphylaxis - see Anaphylactic shock  | 
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