10ICD Code Hub

Q99.89

Billable code

Other specified chromosome abnormalities

The ICD-10 code for other specified chromosome abnormalities is Q99.89.

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Related codes in this category

Associated MS-DRGs

Q99.89 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.