Pyruvate dehydrogenase E3-binding protein…

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Pyruvate dehydrogenase E3-binding protein deficiency

ORPHA:255182Clinical subtype

Also called 2-oxoglutarate complex deficiency · Branched chain alpha-ketoacid dehydrogenase complex deficiency · Diaphorase deficiency · Dihydrolipoyl dehydrogenase deficiency · Glycine cleavage system L protein deficiency · Lipoamide dehydrogenase deficiency · Pyruvate dehydrogenase complex component E3 deficiency · Pyruvate dehydrogenase protein X component deficiency

What it is

Pyruvate dehydrogenase E3-binding protein deficiency is a rare mild form of pyruvate dehydrogenase deficiency (PDHD) characterized by variable lactic acidosis and neurological dysfunction.

Key facts

Age of onset
Infancy, Neonatal
Inheritance
Autosomal recessive
Classified as
Clinical subtype

Recorded for the broader condition

Prevalence
<1 / 1 000 000 (Europe)Pyruvate dehydrogenase deficiency

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.

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

Gene

PDHXDisease-causing germline mutation(s)

ICD-10 codes

E74.4filed 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

MESH C565447MONDO 0009503OMIM 245349UMLS C1855553

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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