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Start free with EleplanThiamine-responsive maple syrup urine disease
ORPHA:268184Clinical subtype
Also called Thiamine-responsive BCKD deficiency · Thiamine-responsive MSUD · Thiamine-responsive branched-chain alpha-ketoacid dehydrogenase deficiency
What it is
Thiamine-responsive maple syrup urine disease (thiamine-responsive MSUD) is a less severe variant of MSUD that manifests with a phenotype similar to intermediate MSUD but that responds positively to treatment with thiamine.
Key facts
- Age of onset
- Infancy
- Inheritance
- Autosomal recessive
- Classified as
- Clinical subtype
Recorded for the broader condition
- Prevalence
- 1-9 / 1 000 000 (Europe)Maple syrup urine disease
Orphanet records these for the broader condition rather than for this specific form. They are a starting point, not a figure for this subtype — subtypes often differ, and some are defined by being rarer than the condition they sit under.
Gene
ICD-10 codes
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
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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