Q98.5 – Karyotype 47, XYY
ICD-10-CM 2027 diagnosis code · Chromosomal abnormalities, not elsewhere classified
- Code
Q98.5(claims format:Q985)- Description
- Karyotype 47, XYY
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q90-Q99 Chromosomal abnormalities, not elsewhere classified
- Parent codes
- Q98
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block Q90-Q99
- mitochondrial metabolic disorders (E88.4-)
Index terms for Q98.5
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in Q98
- Q98.0 – Klinefelter syndrome karyotype 47, XXYBillable
- Q98.1 – Klinefelter syndrome, male with more than two X chromosomesBillable
- Q98.3 – Other male with 46, XX karyotypeBillable
- Q98.4 – Klinefelter syndrome, unspecifiedBillable
- Q98.6 – Male with structurally abnormal sex chromosomeBillable
- Q98.7 – Male with sex chromosome mosaicismBillable
- Q98.8 – Other specified sex chromosome abnormalities, male phenotypeBillable
- Q98.9 – Sex chromosome abnormality, male phenotype, unspecifiedBillable
Frequently asked questions
What is ICD-10 code Q98.5?
Q98.5 is the ICD-10-CM code for karyotype 47, XYY, in the block Q90-Q99 (Chromosomal abnormalities, not elsewhere classified).
Is Q98.5 a billable code?
Yes. Q98.5 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Q98.5 belong to?
It belongs to category Q98 – Other sex chromosome abnormalities, male phenotype, not elsewhere classified.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.