| E72.0 | Disorders of amino-acid transport Cystinosis
 Cystinuria
 Fanconi(-de Toni)(-Debre) syndrome
 Hartnup's disease
 Lowe's syndrome
 
 
Excludes:
disorders of tryptophan metabolism ( E70.8 ) 
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	| E72.1 | Disorders of sulfur-bearing amino-acid metabolism Cystathioninuria
 Homocystinuria
 Methioninaemia
 Sulfite oxidase deficiency
 
 
Excludes:
transcobalamin II deficiency ( D51.2 ) 
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	| E72.2 | Disorders of urea cycle metabolism Argininaemia
 Argininosuccinic aciduria
 Citrullinaemia
 Hyperammonaemia
 
 
Excludes:
disorders of ornithine metabolism ( E72.4 ) 
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	| E72.3 | Disorders of lysine and hydroxylysine metabolism Glutaric aciduria
 Hydroxylysinaemia
 Hyperlysinaemia
 
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	| E72.4 | Disorders of ornithine metabolism Ornithinaemia (types I, II)
 | 
	| E72.5 | Disorders of glycine metabolism Hyperhydroxyprolinaemia
 Hyperprolinaemia (types I, II)
 Non-ketotic hyperglycinaemia
 Sarcosinaemia
 
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	| E72.8 | Other specified disorders of amino-acid metabolism Disorders of:
 Beta-amino-acid metabolism
 Gamma-glutamyl cycle
 
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	| E72.9 | Disorder of amino-acid metabolism, unspecified 
 |