| Trichocephalus infestation 127.3 | 
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  | Trichoepithelioma (M8100/0) - see also Neoplasm, skin, benign | 
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  | Trichofolliculoma (M8101/0) - see Neoplasm, skin, benign | 
  | Tricholemmoma (M8102/0) - see Neoplasm, skin, benign | 
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  | Trichonocardiosis (axillaris) (palmellina) 039.0 | 
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  | Trichophytid, trichophyton infection (see also Dermatophytosis) 110.9 | 
  | Trichophytide - see Dermatophytosis | 
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  | Trichophytosis - see Dermatophytosis | 
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  | Trichorrhexis (nodosa) 704.2 | 
  | Trichosporosis nodosa 111.2 | 
  | Trichostasis spinulosa (congenital) 757.4 | 
  | Trichostrongyliasis (small intestine) 127.6 | 
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  | Trichostrongylus (instabilis) infection 127.6 | 
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  | Trichromat, anomalous (congenital) 368.59 | 
  | Trichromatopsia, anomalous (congenital) 368.59 | 
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  | Trichuris trichiuria (any site) (infection) (infestation) 127.3 | 
  | Tricuspid (valve) - see condition | 
  | Trifid - see also Accessory | 
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  | Trigeminal neuralgia (see also Neuralgia, trigeminal) 350.1 | 
  | Trigeminoencephaloangiomatosis 759.6 | 
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  | Trigger finger (acquired) 727.03 | 
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  | Trigonitis (bladder) (chronic) (pseudomembranous) 595.3 | 
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  | Trilobate placenta - see Placenta, abnormal | 
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  | Tripartita placenta - see Placenta, abnormal | 
  | Triple - see also Accessory | 
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  | Triplet | 
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  | Triplex placenta - see Placenta, abnormal | 
  | Triplication - see Accessory | 
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  | Trisomy (syndrome) NEC 758.5 | 
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  | Troisier-Hanot-Chauffard syndrome (bronze diabetes) 275.0 | 
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