ICD-10-CM Code E74.20
Disorders of galactose metabolism, unspecified
Billable CodeBillable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
E74.20 is a billable ICD code used to specify a diagnosis of disorders of galactose metabolism, unspecified. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code E742 is used to code Galactokinase deficiency
Galactokinase deficiency, also known as Galactosemia type 2 or GALK deficiency, is an autosomal recessive metabolic disorder marked by an accumulation of galactose and galactitol secondary to the decreased conversion of galactose to galactose-1-phosphate by galactokinase. The disorder is caused by mutations in the GALK1 gene, located on chromosome 17q24. Galactokinase catalyzes the first step of galactose phosphorylation in the Leloir pathway of intermediate metabolism. Galactokinase deficiency is one of the three inborn errors of metabolism that lead to hypergalactosemia. The disorder is inherited as an autosomal recessive trait. Unlike classic galactosemia, which is caused by deficiency of galactose-1-phosphate uridyltransferase, galactokinase deficiency does not present with severe manifestations in early infancy. Its major clinical symptom is the development of cataracts during the first weeks or months of life, as a result of the accumulation, in the lens, of galactitol, a product of an alternative route of galactose utilization. The development of early cataracts in homozygous affected infants is fully preventable through early diagnosis and treatment with a galactose-restricted diet. Some studies have suggested that, depending on milk consumption later in life, heterozygous carriers of galactokinase deficiency may be prone to presenile cataracts at 20–50 years of age.
|ICD 9 Code:||271.1|
- DRG Group #642 - Inborn and other disorders of metabolism.
ICD-10-CM Alphabetical Index References for 'E74.20 - Disorders of galactose metabolism, unspecified'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code E74.20. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code E74.20 and a single ICD9 code, 271.1 is an approximate match for comparison and conversion purposes.