QA1: Genetic disorders associated with neoplasms, not elsewhere classified
Codes under QA1 (Genetic disorders associated with neoplasms, not elsewhere classified). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| QA1.7 | Inherited neoplasm predisposition syndromes involving multiple systems, not elsewhere classified | — |
| QA1.71 | Lynch syndrome | ✓ |
| QA1.79 | Other inherited neoplasm predisposition syndrome of multiple systems | — |
| QA1.790 | Familial cancer syndrome with pathogenic BRCA1 mutation | ✓ |
| QA1.791 | Familial cancer syndrome with pathogenic BRCA2 mutation | ✓ |
| QA1.792 | Li Fraumeni syndrome | ✓ |
| QA1.798 | Other inherited neoplasm predisposition syndrome of multiple systems | ✓ |
Frequently asked questions
What is ICD-10-CM code QA1?
QA1 is an ICD-10-CM category covering Genetic disorders associated with neoplasms, not elsewhere classified. It contains 7 more specific diagnosis codes, 5 of which are billable.
Is QA1 a billable code?
No — QA1 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example QA1.7 — Inherited neoplasm predisposition syndromes involving multiple systems, not elsewhere classified). 5 of the 7 codes under QA1 are billable.
What codes fall under QA1?
QA1 includes QA1.7, QA1.71, QA1.79, QA1.790, QA1.791, plus 2 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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