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Mild hyperphenylalaninemia

ORPHA:79651· ICD-10 E70.1

Definition

A rare form of phenylketonuria, an inborn error of amino acid metabolism, characterized by blood phenylalanine (Phe) concentrations of 120-600 micromol/L with or without clinical manifestations of impaired cognitive function, and behavioral and developmental disorders.

Prevalence
Unknown
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal