NAACCR Item #3922: Response to Neoadjuvant Therapy

Item # Length Source of Standard Year Implemented Version Implemented Year Retired Version Retired
3,922 1 NAACCR 2018 18

NAACCR XML: Tumor.responseToNeoadjuvantTherapy


This data item records the physician's statement of response to neoadjuvant chemotherapy.


Response to Neoadjuvant Therapy is a Registry Data Collection Variable in AJCC. It was previously collected as Breast, CS SSF #21.


0Neoadjuvant therapy not given
1Stated as complete response (CR)
2Stated as partial response (PR)
3Stated as response to treatment, but not noted if complete or partial
4Stated as no response (NR)
8Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code 8 will result in an edit error.)
9Not documented in medical record Response to neoadjuvant therapy not assessed or unknown if assessed

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.