📋Overview

XXY Syndrome, also known as Klinefelter syndrome, is a chromosomal variation characterized by the presence of an extra X chromosome in a male's genetic makeup. This additional genetic material can influence various aspects of physical, hormonal, and reproductive development throughout an individual's life.

The condition is generally the result of a random genetic error during the formation of reproductive cells rather than being inherited from parents. Because the clinical features can be subtle, the presence of the extra chromosome may remain undetected until later stages of development or when specific health evaluations are performed during adulthood.

Educational overview only. This page summarizes publicly available health information for general understanding and awareness. It does not provide medical advice, diagnosis, or treatment. For personalized guidance or care decisions, consult a qualified healthcare professional.

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Medical codes (for reference)

UMLS CUI: C0022735
ICD-10-CM
Q98.0Q98.4
MeSH
D007713
SNOMED CT (US)
22053006405769009

Codes are provided for reference and interoperability. They are not a diagnosis.

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