MCMedicalCodingSoftware
Q99.89

Q99.89: Other specified chromosome abnormalities

Billable / specific codeICD-10-CMPOA exempt

Q99.89 is a billable, specific ICD-10-CM code for other specified chromosome abnormalities. It is valid for submission on a claim.

Check Q99.89 with the rest of the claim: free scrubber

Risk adjustment

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

Code history

  • addedFY2024-FY2027

    Other specified chromosome abnormalities

Other codes under Q99.8

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.