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Q98.1 Klinefelter syndrome, male with more than two X chromosomes
BackQ98Other sex chromosome abnormalities, male phenotype, not elsewhere classifiedCategory9 →Q98.0Klinefelter syndrome karyotype 47, XXYCategoryQ98.1Klinefelter syndrome, male with more than two X chromosomesCategoryQ98.3Other male with 46, XX karyotypeCategoryQ98.4Klinefelter syndrome, unspecifiedCategoryQ98.5Karyotype 47, XYYCategoryQ98.6Male with structurally abnormal sex chromosomeCategoryQ98.7Male with sex chromosome mosaicismCategoryQ98.8Other specified sex chromosome abnormalities, male phenotypeCategoryQ98.9Sex chromosome abnormality, male phenotype, unspecifiedCategory
CategoryCODABLE
Q98.1
Klinefelter syndrome, male with more than two X chromosomes
- Chapter
- XVII · Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
- Section
- Q90-Q99
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.