Sanfilippo syndrome type C

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Sanfilippo syndrome type C

ORPHA:79271Etiological subtype

Also called HGSNAT deficiency · Heparan-alpha-glucosaminide N-acetyltransferase deficiency · MPS3C · MPSIIIC · Mucopolysaccharidosis type 3C · Mucopolysaccharidosis type IIIC

What it is

Orphanet has not published a description for this disease yet. The identifiers, classification and cross-references below are still current.

Key facts

Prevalence
1-9 / 100 000 (Europe)
Age of onset
Childhood
Inheritance
Autosomal recessive
Classified as
Etiological subtype

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

HGSNATDisease-causing germline mutation(s) (loss of function)

ICD-10 codes

E76.2filed 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

GARD 7073MONDO 0009657OMIM 252930UMLS C0086649

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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