Genetic disorders, not elsewhere classified (QA0-QA1) ICD-10-CM
The QA0–QA1 section covers genetic disorders, not elsewhere classified with 28 ICD-10-CM diagnosis codes, of which 18 are billable in fiscal year 2027. The section is organized into the 2 code ranges listed below.
Code Ranges in This Section 2 ranges · 28 codes
| Code Range | Title | Codes | Billable |
|---|---|---|---|
| QA0 | Neurodevelopmental disorders related to specific genetic pathogenic variants (QA0) | 20 | 13 |
| QA1 | Genetic disorders associated with neoplasms, not elsewhere classified (QA1) | 8 | 5 |
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the QA0–QA1 Code Range
These genetic disorders relate to neurodevelopment or to tumors.
QA0 describes neurodevelopmental disorders linked to disease-causing changes in specific genes. Its subdivisions distinguish disorders linked to specific genes from those linked to other specific genes.
QA1 describes genetic disorders associated with tumors. Its listed subdivision identifies inherited syndromes involving multiple body systems and a predisposition to tumors.
FY 2027 changes: The FY 2027 ICD-10-CM update, effective October 1, 2026, added QA1.71, QA1.790, QA1.791, QA1.792 and QA1.798.
Questions About This Page
How many codes are in the QA0-QA1 range?
The QA0-QA1 range contains 28 ICD-10-CM diagnosis codes in FY 2027. 18 of them are billable, and the rest are category headers that organize the section.
What conditions does QA0-QA1 cover?
The range covers genetic disorders, not elsewhere classified. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
