Free Diagnosis Codes Lookup > 2008 > Endocrine, Nutritional And Metabolic Diseases, And Immunity Disorders 240-279 > Other Metabolic Disorders And Immunity Disorders 270-279 > Disorders of amino-acid transport and metabolism 270.* >
autosomal recessive aminoacidopathy due to deficiency of histidine ammonia-lyase; characterized by accumulation of histidine in serum and urinary excretion of histidine and metabolites, but is usually benign; may cause mild central nervous system dysfunction.
Also applicable to/known as
Carnosinemia
Histidinemia
Hyperhistidinemia
Imidazole aminoaciduria
ICD-9-CM Volume 2 Index Entries That Refer To 270.5