ER (Estrogen Receptor) Summary
This input is used for staging
Notes
**Note 1:** Physician statement of ER (Estrogen Receptor) Summary status can be used to code this data item when no other information is available. **Note 2:** The result of the ER test performed on the primary breast tissue is to be recorded in this data item. **Note 3:** Results from nodal or metastatic tissue may be used ONLY when there is no evidence of primary tumor. **Note 4:** In cases where there are invasive and in situ components and ER is done on both, ignore the in situ results. * If ER is positive on an in situ component and ER is negative on all tested invasive components, code ER as negative (code 0) * If in situ and invasive components present and ER only done on the in situ component, code unknown (code 9) **Note 5:** In cases where there is a single tumor with multiple biopsies and/or surgical resection with different ER results. * Use the highest (positive versus negative) **Note 6:** In cases where there are multiple tumors with different ER results, code the results from the largest tumor size (determined either clinically or pathologically) when multiple tumors are present. * Do not use specimen size to determine the largest tumor size **Note 7:** If neoadjuvant therapy is given, record the assay from tumor specimens prior to neoadjuvant therapy. If neoadjuvant therapy is given and there are no ER results from pre-treatment specimens, report the findings from post-treatment specimens. **Note 8:** If the patient is ER positive and node negative, a multigene test such as Oncotype Dx may be performed, in which case another ER test will be performed. Do not record the results of that test in this field. * Record only the results of the test which made the patient eligible to be given the multigene testDefault
9NAACCR Item
NAACCR #3827Metadata
SSDI| Code | Description |
|---|---|
| 0 | ER negative |
| 1 | ER positive |
| 7 | Test ordered, results not in chart |
| 9 | Not documented in medical record Cannot be determined (indeterminate) ER (Estrogen Receptor) Summary status not assessed or unknown if assessed |