Diazoxide-resistant focal hyperinsulinism

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Diazoxide-resistant focal hyperinsulinism due to SUR1 deficiency

ORPHA:276598Disease

Also called Hyperinsulinemic hypoglycemia due to SUR1 deficiency, diazoxide-resistant focal form

What it is

A rare, congenital, isolated hyperinsulinism disorder characterized by diazoxide unresponsive recurrent episodes of hyperinsulinemic hypoglycemia resulting from an excessive insulin secretion by the pancreatic beta-cells due to a mutation in the ABCC8 gene. Pancreatic involvement is focal and can be cured by a selective partial pancreatectomy. Hypoglycemia may lead to variable clinical manifestations, ranging from asymptomatic hypoglycemia revealed by routine blood glucose monitoring to macrosomia at birth, mild to moderate hepatomegaly and life-threatening hypoglycemic coma or status epilepticus, further leading to poor neurological outcome.

Key facts

Age of onset
Infancy, Neonatal
Inheritance
Autosomal recessive
Classified as
Disease

Gene

ABCC8Disease-causing germline mutation(s)

ICD-10 codes

E16.1filed under a broader ICD-10 category — shared with 13 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references

MONDO 0017187OMIM 256450UMLS C5191059

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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