ICD-10 Code: Q98.1 – Klinefelter syndrome, male with more than two X chromosomes

ICD-10 code Q98.1 corresponds to Klinefelter syndrome, male with more than two X chromosomes. This code is classified under the chapter Q98 Other sex chromosome abnormalities, male phenotype, not elsewhere classified, which is part of the Q90-Q99: Chromosomal abnormalities, not elsewhere classified category.

The parent chapter is Congenital malformations, deformations and chromosomal abnormalities.