Q98.1
Q98.1: Klinefelter syndrome, male with more than two X chromosomes
Billable / specific codeICD-10-CMPOA exempt
Q98.1 is a billable, specific ICD-10-CM code for klinefelter syndrome, male with more than two x chromosomes. It is valid for submission on a claim.
Check Q98.1 with the rest of the claim: free scrubberOther codes that can never be billed with Q98.1
Their own Excludes1 notes name this code, so the conflict is not listed above.
- E29Testicular dysfunction
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Alphabetic index entries that lead here
- XXXXY syndrome
- Klinefelter's syndrome›male with more than two X chromosomes
- Syndrome›XXXXY
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under Q98
- Q98.0Klinefelter syndrome karyotype 47, XXY
- Q98.3Other male with 46, XX karyotype
- Q98.4Klinefelter syndrome, unspecified
- Q98.5Karyotype 47, XYY
- Q98.6Male with structurally abnormal sex chromosome
- Q98.7Male with sex chromosome mosaicism
- Q98.8Other specified sex chromosome abnormalities, male phenotype
- Q98.9Sex chromosome abnormality, male phenotype, unspecified