Search Browse Crosswalk Fees Tools Pricing

Codelle

AI-powered medical coding assistant for healthcare practices and billers.

Pricing Privacy Terms

© 2026 Codelle. All rights reserved.

CPT® copyright 2026 American Medical Association. All rights reserved. CPT is a registered trademark of the American Medical Association. Applicable FARS/DFARS restrictions apply to government use. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use.

ICD-10-CM Q99 — Other chromosome abnormalities, n… | Codelle

Q99

ICD-10-CM

Other chromosome abnormalities, not elsewhere classified

Code Hierarchy

Subcodes (5)

Q99.0Chimera 46, XX/46, XY

Q99.146, XX true hermaphrodite

Q99.2Fragile X chromosome

Q99.8Other specified chromosome abnormalities

Q99.9Chromosomal abnormality, unspecified

Same Category

Q99.0Chimera 46, XX/46, XY Q99.146, XX true hermaphrodite Q99.2Fragile X chromosome Q99.8Other specified chromosome abnormalities Q99.81Usher syndrome Q99.811Usher syndrome, type 1 Q99.812Usher syndrome, type 2 Q99.813Usher syndrome, type 3 Q99.818Other Usher syndrome Q99.819Usher syndrome, unspecified

+2 more in this category