|  E72 |  | Other disorders of amino-acid metabolism   | 
	
		|  |  | 
	
		| Excludes1 | disorders of: aromatic amino-acid metabolism (E70.-)
 branched-chain amino-acid metabolism (E71.0-E71.2)
 fatty-acid metabolism (E71.3)
 purine and pyrimidine metabolism (E79.-)
 gout (M1A.-, M10.-)
 
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		|  E72.0 |  | Disorders of amino-acid transport |  
		|  |  | 
	
		| Excludes1 | disorders of tryptophan metabolism (E70.5) 
 |  |  |  |  | 
	
		|  E72.00 |  | Disorders of amino-acid transport, unspecified |  |  |  |  | 
	
		|  E72.01 |  | Cystinuria |  |  |  |  | 
	
		|  E72.02 |  | Hartnup's disease |  |  |  |  | 
	
		|  E72.03 |  | Lowe's syndrome |  
		|  |  | 
	
		| UseAdditionalCode | code for associated glaucoma (H42) 
 |  |  |  |  |  | 
	
		|  E72.04 |  | Cystinosis |  
		|  |  | 
| Fanconi (-de Toni) (-Debré) syndrome with cystinosis |  
		| Excludes1 | Fanconi (-de Toni) (-Debré) syndrome without cystinosis (E72.09) 
 |  |  |  |  |  | 
	
		|  E72.09 |  | Other disorders of amino-acid transport |  
		|  |  | 
| Fanconi (-de Toni) (-Debré) syndrome, unspecified |  |  |  | 
|  |  | 
	
		|  E72.1 |  | Disorders of sulfur-bearing amino-acid metabolism |  
		|  |  |  |  |  |  | 
	
		|  E72.10 |  | Disorders of sulfur-bearing amino-acid metabolism, unspecified |  |  |  |  | 
	
		|  E72.11 |  | Homocystinuria |  
		|  |  | 
| Cystathionine synthase deficiency |  |  |  |  |  | 
	
		|  E72.12 |  | Methylenetetrahydrofolate reductase deficiency |  |  |  |  | 
	
		|  E72.19 |  | Other disorders of sulfur-bearing amino-acid metabolism |  
		|  |  | 
| Cystathioninuria |  | Methioninemia |  | Sulfite oxidase deficiency |  |  |  | 
|  |  | 
	
		|  E72.2 |  | Disorders of urea cycle metabolism |  
		|  |  | 
	
		| Excludes1 | disorders of ornithine metabolism (E72.4) 
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		|  E72.20 |  | Disorder of urea cycle metabolism, unspecified |  
		|  |  | 
| Hyperammonemia |  
		| Excludes1 | hyperammonemia-hyperornithinemia-homocitrullinemia syndrome E72.4 transient hyperammonemia of newborn (P74.6)
 
 |  |  |  |  |  | 
	
		|  E72.21 |  | Argininemia |  |  |  |  | 
	
		|  E72.22 |  | Arginosuccinic aciduria |  |  |  |  | 
	
		|  E72.23 |  | Citrullinemia |  |  |  |  | 
	
		|  E72.29 |  | Other disorders of urea cycle metabolism |  |  | 
|  |  | 
	
		|  E72.3 |  | Disorders of lysine and hydroxylysine metabolism |  
		|  |  | 
| Glutaric aciduria NOS |  | Glutaric aciduria (type I) |  | Hydroxylysinemia |  | Hyperlysinemia |  
		| Excludes1 | glutaric aciduria type II (E71.313) Refsum's disease (G60.1)
 Zellweger syndrome (E71.510)
 
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		|  E72.4 |  | Disorders of ornithine metabolism |  
		|  |  | 
| Hyperammonemia-Hyperornithinemia-Homocitrullinemia syndrome |  | Ornithinemia (types I, II) |  | Ornithine transcarbamylase deficiency |  
		| Excludes1 | hereditary choroidal dystrophy (H31.2-) 
 |  |  | 
|  |  | 
	
		|  E72.5 |  | Disorders of glycine metabolism |  |  |  | 
	
		|  E72.50 |  | Disorder of glycine metabolism, unspecified |  |  |  |  | 
	
		|  E72.51 |  | Non-ketotic hyperglycinemia |  |  |  |  | 
	
		|  E72.52 |  | Trimethylaminuria |  |  |  |  | 
	
		|  E72.53 |  | Primary hyperoxaluria |  
		|  |  | 
| Oxalosis |  | Oxaluria |  
		| Excludes1 | secondary hyperoxaluria (E72.54-) 
 |  |  |  |  | 
	
		|  E72.530 |  | Primary hyperoxaluria, type 1 |  |  |  |  | 
	
		|  E72.538 |  | Other specified primary hyperoxaluria |  
		|  |  | 
| Primary hyperoxaluria, type 2 |  | Primary hyperoxaluria, type 3 |  |  |  |  |  | 
	
		|  E72.539 |  | Primary hyperoxaluria, unspecified |  |  |  |  |  | 
	
		|  E72.54 |  | Secondary hyperoxaluria |  
		|  |  | 
	
		| Excludes1 | primary hyperoxaluria (E72.53-) 
 |  |  |  |  | 
	
		|  E72.540 |  | Dietary hyperoxaluria |  |  |  |  | 
	
		|  E72.541 |  | Enteric hyperoxaluria |  |  |  |  | 
	
		|  E72.548 |  | Other secondary hyperoxaluria |  |  |  |  | 
	
		|  E72.549 |  | Secondary hyperoxaluria, unspecified |  |  |  |  |  | 
	
		|  E72.59 |  | Other disorders of glycine metabolism |  
		|  |  | 
| D-glycericacidemia |  | Hyperhydroxyprolinemia |  | Hyperprolinemia (types I, II) |  | Sarcosinemia |  |  |  | 
|  |  | 
	
		|  E72.8 |  | Other specified disorders of amino-acid metabolism |  |  |  | 
	
		|  E72.81 |  | Disorders of gamma aminobutyric acid metabolism |  
		|  |  | 
| 4-hydroxybutyric aciduria |  | Disorders of GABA metabolism |  | GABA metabolic defect |  | GABA transaminase deficiency |  | GABA-T deficiency |  | Gamma-hydroxybutyric aciduria |  | SSADHD |  | Succinic semialdehyde dehydrogenase deficiency |  |  |  |  |  | 
	
		|  E72.89 |  | Other specified disorders of amino-acid metabolism |  
		|  |  | 
| Disorders of beta-amino-acid metabolism |  | Disorders of gamma-glutamyl cycle |  |  |  | 
|  |  | 
	
		|  E72.9 |  | Disorder of amino-acid metabolism, unspecified |  |