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Person with cancer—neoadjuvant therapy indicator, code N

Identifying and definitional attributes

Metadata item type:Help on this termData Element
Short name:Help on this termNeo-adjuvant therapy
METeOR identifier:Help on this term370014
Registration status:Help on this termHealth, Standard 06/03/2009
Definition:Help on this termWhether a person with a solid tumour has received neoadjuvant therapy, as represented by a code.
Data Element Concept:Person with cancer—neoadjuvant therapy indicator

Value domain attributes

Representational attributes

Representation class:Help on this termCode
Data type:Help on this termBoolean
Format:Help on this termN
Maximum character length:Help on this term1
Permissible values:Help on this term

Data element attributes

Collection and usage attributes

Guide for use:Help on this term

To be reported when therapy is received after a diagnosis of cancer and prior to primary surgical treatment.

This data item is used to flag cases in which tumour descriptors, for example solid tumour size, may be inaccurate due to shrinkage from neoadjuvant therapy.

Yes - indicates that the client has received neo-adjuvant therapy after a diagnosis of cancer and prior to primary surgical treatment

No - indicates that the client did not receive neo-adjuvant therapy after a diagnosis of cancer and prior to primary surgical treatment

For invasive breast cancer:

Information is obtained from

  • Clinical notes on pathology report mentions that patient underwent chemotherapy prior to surgery
  • Microscopy section of pathology report describes tumour changes as a result of neoadjuvant therapy (coder may be alerted to look for this detail by a long interval between biopsy and wider excision)
  • Hospital notification indicates that admission if for chemotherapy only (and admission date is before that for surgery)
Comments:Help on this term

Preoperative chemotherapy and/or radiotherapy may be received after a diagnosis of cancer but before surgical treatment.

The effects of chemotherapy and/or radiotherapy prior to surgery will shrink the tumour and so the size of the tumour found from the subsequent surgical excision will be smaller than the original size of the tumour at the time of diagnosis. This impacts on the TNM-T and staging classification, and is important to take into account for analysis and research.

Source and reference attributes

Origin:Help on this term

National Breast and Ovarian Cancer Centre (NBOCC)

Australasian Association of Cancer Registries (AACR)

Australian Institute of Health and Welfare (AIHW)

Reference documents:Help on this termJohnson CH, Adamo M (eds.), SEER Program Coding and Staging Manual 2007. National Cancer Institute, NIH Publication number 07-5581, Bethesda, MD 2007.

Relational attributes

Implementation in Data Set Specifications:Help on this term

Breast cancer (Cancer registries) DSS Health, Superseded 01/09/2012

Breast cancer (cancer registries) NBPDS Health, Standard 01/09/2012

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