Tracking this diagnosis for someone you care for? Eleplan keeps diagnoses, medications and appointments in one plan.
Start free with EleplanQ98.0
BillableKlinefelter syndrome karyotype 47, XXY
Q98.0 is the ICD-10-CM code for Klinefelter syndrome karyotype 47, XXY. It is a billable, specific code valid for reimbursement.
Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities
What this means — in plain language
MedlinePlus · NIHWhat is Klinefelter syndrome (KS)? Klinefelter syndrome (KS) is a genetic condition that happens when a male is born with an extra copy of the X chromosome. KS can affect different stages of physical, language, and social development. It also usually causes infertility . What causes Klinefelter syndrome (KS)? KS is not inherited. It's caused by a random error that happens when a sperm or egg is formed. This error…
Read more about Klinefelter Syndrome at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
Look up another ICD-10 code or condition