Pyruvate carboxylase deficiency

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Pyruvate carboxylase deficiency, infantile type

ORPHA:353308Clinical subtype

Also called Pyruvate carboxylase deficiency type A

What it is

Infantile pyruvate carboxylase (PC) deficiency (Type A) is a rare, severe form of PC deficiency characterized by infantile-onset, mild to moderate lactic acidemia, and a generally severe course.

Key facts

Age of onset
Infancy
Inheritance
Autosomal recessive
Classified as
Clinical subtype

Recorded for the broader condition

Prevalence
1-9 / 1 000 000 (at birth, Europe)Pyruvate carboxylase 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.

Gene

PCDisease-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

MONDO 0018141OMIM 266150UMLS C5679928

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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