Percent Necrosis Post Neoadjuvant
**Note 1:** Physician statement of microscopically confirmed Percent Necrosis Post Neoadjuvant Chemotherapy can be used to code this data item if no other documentation is available.
**Note 2:** Record percentage value of the tumor necrosis post neoadjuvant chemotherapy as recorded in the pathology report from resection of the primary tumor.
**Note 3:** Code XXX.9 if:
* Surgical resection of the primary site after neoadjuvant therapy is performed and there is no mention of percent necrosis
* Surgical resection of the primary site is the initial therapy; therefore, no neoadjuvant therapy was performed