NAACCR Item #3827: Estrogen Receptor Summary
| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired | 
|---|---|---|---|---|---|---|
| 3827 | 1 | NAACCR | 2018 | 18 | 
            NAACCR XML:
            
                
                    Tumor.estrogenReceptorSummary
                
            
        
        
        Description
            ER (Estrogen Receptor) Summary is a summary of results of the estrogen receptor (ER) assay.
        Rationale
                This data item is required for prognostic stage grouping in AJCC 8th edition, Chapter 48, *Breast*. It was previously collected as Breast CS SSF # 1.
            Codes
                | 0 | ER negative (0.0% or less than 1%) | 
| 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 | 
Code Notes
                Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.