Item # Length Source of Standard Year Implemented Version Implemented Year Retired Version Retired
1191 1 NAACCR/SEER 2025 25

NAACCR XML: Tumor.ewsr1Fli1Fusion

Description

This data item documents rearrangement (fusion) in EWR1 genes. EWSR1-FLI1 fusion occurs in about 90% of Ewing Sarcomas and functions as both a pioneering transcription factor and potent oncogene.

Rationale

This is part of the National Childhood Cancer Registry (NCCR) project to collect more specific information on pediatric patients. Registries part of the NCCR will start collection on specific pediatric data items with 2024+ diagnoses.

Source documents: molecular pathology report (may be addendum to original pathology report).

Codes
0No gene rearrangements (fusions) identified
1EWSR1-FLI1 gene rearrangement (fusion) present
2EWSR1-ERG gene rearrangement (fusion) present
3Other EWSR1 gene rearrangement (fusion) present
4EWSR1 rearrangement present, fusion partner not known
5Non-EWSR1 variant translocation present
7Test ordered, results not in chart
8Not 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.)
9Not documented in medical record Cannot be determined by pathologist EWSR1 gene arrangements not assessed or unknown if assessed

Note 1: Effective years

Note 2: Physician statement