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ICD-10-CM Codes
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Q00-Q99
Congenital malformations, deformations and chromosomal abnormalities
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Q90-Q99
Chromosomal abnormalities, not elsewhere classified
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Q98-
Other sex chromosome abnormalities, male phenotype, not elsewhere classified
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2021 ICD-10-CM Diagnosis Code Q98
2021 ICD-10-CM Diagnosis Code Q98
Other sex chromosome abnormalities, male phenotype, not elsewhere classified
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
- Q98 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- Short description: Oth sex chromosome abnormalities, male phenotype, NEC
- The 2021 edition of ICD-10-CM Q98 became effective on October 1, 2020.
- This is the American ICD-10-CM version of Q98 - other international versions of ICD-10 Q98 may differ.
The following code(s) above
Q98 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
Q98:
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To Q98
Q96.4 Mosaicism, 45, X/other cell line(s) with abnormal sex chromosome
Q96.8 Other variants of Turner's syndrome
Q96.9 Turner's syndrome, unspecified
Q97 Other sex chromosome abnormalities, female phenotype, not elsewhere classified
Q97.1 Female with more than three X chromosomes
Q97.2 Mosaicism, lines with various numbers of X chromosomes
Q97.3 Female with 46, XY karyotype
Q97.8 Other specified sex chromosome abnormalities, female phenotype
Q97.9 Sex chromosome abnormality, female phenotype, unspecified
Q98
Other sex chromosome abnormalities, male phenotype, not elsewhere classified
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
Q98.6 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
Q99 Other chromosome abnormalities, not elsewhere classified
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.