ER (Estrogen Receptor) Summary

This input is used for staging


**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. Results from nodal or metastatic tissue may be used ONLY when there is no evidence of primary tumor. **Note 3:** In cases where ER is reported on more than one breast tumor specimen, record the highest value. If any sample is positive, record as positive. * ***Exception:*** If ER is positive on an in situ specimen and ER is negative on all tested invasive specimens, code ER as negative (code 0). **Note 4:** 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 5:** 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 test.




NAACCR #3827


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