Q96.4Billable

Mosaicism, 45, X/other cell line(s) with abnormal sex chromosome

Short description: Mosaic, 45, X/other cell line(s) w abnormal sex chromosome

Chapter
17. Congenital malformations, deformations and chromosomal abnormalities
Category
Q96
Effective date
October 1, 2026

Related codes in category Q96

Q96Turner's syndromeQ96.0Karyotype 45, XYesQ96.1Karyotype 46, X iso (Xq)YesQ96.2Karyotype 46, X w abnormal sex chromosome, except iso (Xq)YesQ96.3Mosaicism, 45, X/46, XX or XYYesQ96.8Other variants of Turner's syndromeYesQ96.9Turner's syndrome, unspecifiedYes

Frequently asked questions

What is ICD-10 code Q96.4?

Q96.4 is an ICD-10-CM diagnosis code for Mosaicism, 45, X/other cell line(s) with abnormal sex chromosome.

Is Q96.4 a billable code?

Yes. Q96.4 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is Q96.4 in?

Q96.4 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.

When did Q96.4 become effective?

Q96.4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Q96.4?

Q96.4 belongs to category Q96, which includes 7 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.