ICD-10-CM Q98: Other sex chromosome abnormalities, male phenotype, not elsewhere classified

ICD-10-CM Diagnosis Code (2025)

Official Description for Q98

Other sex chromosome abnormalities, male phenotype, not elsewhere classified

Child Codes (More Specific Codes for Q98):

Q98.0 - Klinefelter syndrome karyotype 47, XXY Q98.1 - Klinefelter syndrome, male with more than two X chromosomes Q98.3 - Other male with 46, XX karyotype Q98.4 - Klinefelter syndrome, unspecified Q98.5 - Karyotype 47, XYY Q98.6 - Male with structurally abnormal sex chromosome Q98.7 - Male with sex chromosome mosaicism Q98.8 - Other specified sex chromosome abnormalities, male phenotype Q98.9 - Sex chromosome abnormality, male phenotype, unspecified

About ICD-10-CM Code Q98 (Other sex chromosome abnormalities)

ICD-10-CM code Q98 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM Q98 became effective on October 1, 2024.

This page provides detailed information about Q98 - Other sex chromosome abnormalities, male phenotype, not elsewhere classified. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other sex chromosome abnormalities related to male phenotype, not elsewhere classified.