5C51.41

ICD-11 MMS 2026-01

Galactokinase deficiency

Description

Galactokinase deficiency is a rare mild form of galactosemia characterised by early onset of cataract and an absence of the usual signs of classic galactosemia, i.e. feeding difficulties, poor weight gain and growth, lethargy, and jaundice.

Index terms

  • Galactokinase deficiency
  • GALK - [galactokinase deficiency]

Exclusions from above levels

  • 5A41 – hypoglycaemia NOS
  • 5A42 – Increased secretion of glucagon
  • 5C56.3 – Mucopolysaccharidosis
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  • http://id.who.int/icd/entity/465177735 – Diabetes mellitus
  • http://id.who.int/icd/entity/1191191920 – Disorders of lipoprotein metabolism or certain specified lipidaemias
  • 3A10.Z – Hereditary haemolytic anaemia due to enzyme deficiency
  • 5A71.01 – Congenital adrenal hyperplasia
  • 5A81.1 – 5-alpha-reductase deficiency
  • LD28.01 – Marfan syndrome
  • LD28.1 – Ehlers-Danlos syndrome
  • LD2A.4 – androgen resistance syndrome
  • 18 – Pregnancy, childbirth or the puerperium
  • http://id.who.int/icd/entity/1004987305 – Transitory endocrine or metabolic disorders specific to fetus or newborn

Sibling codes

  • 5C51.40 – Galactose-1-phosphate uridyltransferase deficiency
  • 5C51.42 – Glucose or galactose intolerance of newborn
  • 5C51.4Y – Other specified disorders of galactose metabolism
  • 5C51.4Z – Disorders of galactose metabolism, unspecified

Foundation entity

Galactokinase deficiency – http://id.who.int/icd/entity/1173858031

Part of: 5C51.4: Disorders of galactose metabolism › 5C51: Inborn errors of carbohydrate metabolism › 05: Endocrine, nutritional or metabolic diseases