• mitochondrial metabolic disorders (E88.4-)
  1. Q98 Other sex chromosome abnormalities, male phenotype, not elsewhere classified

    1. Q98.0 Klinefelter syndrome karyotype 47, XXY

    2. Q98.1 Klinefelter syndrome, male with more than two X chromosomes

    3. Q98.3 Other male with 46, XX karyotype

    4. Q98.4 Klinefelter syndrome, unspecified

    5. Q98.5 Karyotype 47, XYY

    6. Q98.6 Male with structurally abnormal sex chromosome

    7. Q98.7 Male with sex chromosome mosaicism

    8. Q98.8 Other specified sex chromosome abnormalities, male phenotype

    9. Q98.9 Sex chromosome abnormality, male phenotype, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.