Hyper-IgM syndrome type 4

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Hyper-IgM syndrome type 4
IgM scheme.svg
Immunoglobulin M
Classification and external resources
Specialty hematology
ICD-10 D80.5
ICD-9-CM 279.05
OMIM 608184
eMedicine ped/2457
MeSH D053306

Hyper-IgM syndrome type 4 is a form of Hyper IgM syndrome which is a defect in class switch recombination downstream of the AICDA gene that does not impair somatic hypermutation.[1]