FOXO1 Gene Rearrangements

FKHR-PAX3 or FKHR-PAX7

Notes

**Note 1:** This SSDI is effective for diagnosis years 2023+. * For cases diagnosed 2018-2022, leave this SSDI blank **Note 2:** Physician statement of FOXO1 gene rearrangements can be used to code this data item. **Note 3:** If the presence/absence of FOXO1 gene rearrangements determined by available test results differs from the physician statement of presence/absence, the physician’s statement takes precedence. **Note 4:** This test is almost always done for Alveolar Rhabdomyosarcomas. Embryonal Rhabdomyosarcomas are usually negative, and therefore the test is usually not done.

NAACCR Item

NAACCR #9609

Metadata

SSDI
Code Description
0 No gene rearrangements (fusions) identified
1 FOXO1-PAX3 gene rearrangement (fusion) present
2 FOXO1-PAX7 gene rearrangement (fusion) present
3 FOXO1-PAX3 and FOXO1-PAX7 gene rearrangements (fusions) present
4 FOXO1 gene rearrangement present, fusion partner not known
7 Test ordered, results not in chart
8 Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code 8 may result in an edit error.)
9 Not documented in medical record Cannot be determined by pathologist FOXO1 gene rearrangement not assessed or unknown if assessed
<BLANK> N/A - Diagnosis year is prior to 2023