Deficiency of adenosine deaminase 2

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Deficiency of adenosine deaminase 2

ORPHA:404553Disease

Also called Adenosine deaminase 2 deficiency · DADA2 · Vasculitis-autoinflammation-immunodeficiency- hematologic defects syndrome · ADA2 deficiency

What it is

A rare autoinflammatory disease characterized by a broad clinical phenotype of systemic inflammation, vasculitis, early-onset stroke, immunodeficiency and bone marrow failure. The disease typically presents in young children, although adult cases are being discovered.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
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

ADA2Disease-causing germline mutation(s) (loss of function)

ICD-10 codes

M30.8filed under a broader ICD-10 category — shared with 1 other rare disease

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 12383MONDO 0014306OMIM 615688UMLS C4749403

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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