Biotin-thiamine-responsive basal ganglia…

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Biotin-thiamine-responsive basal ganglia disease

ORPHA:65284Disease

Also called BBGD · BTBGD · Biotin-responsive basal ganglia disease

What it is

A rare genetic neurological disorder characterized by subacute encephalopathy with confusion, seizures, and movement disorder, often following a history of febrile illness. Imaging may reveal bilateral lesions in the basal ganglia. The disease usually becomes symptomatic in childhood and is life-threatening if left untreated, but symptoms can be reversed and progression prevented by treatment with high doses of biotin and thiamine.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Adult, Childhood, Infancy
Inheritance
Autosomal recessive
Classified as
Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Gene

SLC19A3Disease-causing germline mutation(s)

ICD-10 codes

G93.8filed under a broader ICD-10 category — shared with 18 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

GARD 10237MESH C537658MONDO 0011841MONDO 11841OMIM 607483UMLS C1843807

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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