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Q96.2

Q96.2: Karyotype 46, X with abnormal sex chromosome, except iso (Xq)

Billable / specific codeICD-10-CMPOA exempt

Q96.2 is a billable, specific ICD-10-CM code for karyotype 46, x with abnormal sex chromosome, except iso (xq). It is valid for submission on a claim.

Check Q96.2 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Karyotype 46, X with abnormal sex chromosome, except isochromosome Xq

Excludes1 inherited from the categories above Q96.2

A category’s note binds every code beneath it.

Written on Q96: Turner's syndrome

Other codes that can never be billed with Q96.2

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • Q50.0Congenital absence of ovary
  • Q97Other sex chromosome abnormalities, female phenotype, not elsewhere classified
  • E28.3Primary ovarian failure

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Q96.2 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56781Billing and Coding: Transthoracic Echocardiography (TTE)
  • A57132Billing and Coding: Bone Mass Measurement
  • A57306Billing and Coding: Transthoracic Echocardiography (TTE)
  • A59040Billing and Coding: Bone Mass Measurement

Alphabetic index entries that lead here

  • Karyotype›with abnormality except iso(Xq)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Q96

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.